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                    U.S. DEPARTMENT OF AGRICULTURE
 Grassland Soil and Water Research Laboratory: Temple, TX
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ARS Home Plains Area Temple, Texas Grassland Soil and Water Research Laboratory People & Locations







Douglas R Smith
                        Grassland Soil and Water Research Laboratory

                        




                        
                        SUPVY RES SOIL SCIENTIST
                        Phone: (254) 545-2786
                        
                        
                        Fax: (Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsTexas Water Observatory Monitoring at the Riesel Watersheds
                                                    Cooperative Agreement
                                                                    (A)Accession Number: 442557Enhancing Cropping System and Grassland Sustainability in the Texas Gulf Coast Region by Managing Systems for Productivity and Resilience
                                                    In-House Appropriated
                                                                    (D)Accession Number: 445467Development of Enhanced Tools and Management Strategies to Support Sustainable Agricultural Systems and Water Quality
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441494Conservation Effects Assessment Project - 2022, 2023
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 442003Conservation Effects Assessment Project - 2019, 2020, 2021
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 436321FY 2022, 2023 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (on croplands) Temple
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 443178Precision Application of Conservation in Upper Midwestern Cropping Systems
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 439138**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)The LTAR integrated grazing land common experiment at the Texas Gulf

- (Peer Reviewed Journal)Heavy metals concentration in soils across the conterminous USA: Spatial prediction, model uncertainty, and influencing factors
                                                        

- (Peer Reviewed Journal)Adhikari, K., Mancini, M., Libohova, Z., Blackstock, J.M., Winzeler, H.E., Smith, D.R., Owens, P.R., Silva, S.H., Curi, N.C. 2024. Heavy metals concentration in soils across the conterminous USA: Spatial prediction, model uncertainty, and influencing factors. Science of the Total Environment. 919. Article 170972. https://doi.org/10.1016/j.scitotenv.2024.170972.Understanding within-field variation in Nitrogen Use Efficiency (NUE) using proximal sensing, field observations, and machine learning

- (Abstract Only)Identifying key factors controlling soil respiration in agricultural fields
                                                        

- (Peer Reviewed Journal)Adhikari, K., Anderson, K.R., Smith, D.R., Owens, P.R., Moore Jr., P.A., Libohova, Z. 2023. Identifying key factors controlling soil respiration in agricultural fields. Agricultural & Environmental Letters. 8(2). Article e20117. https://doi.org/10.1002/ael2.20117.Yield stability zonation as a generic tool for precision conservation decisions in agriculture fields

- (Abstract Only)Uncertainty in phosphorus fluxes and budgets across the U.S. long-term agroecosystem research network
                                                        

- (Peer Reviewed Journal)Welikhe, P., Williams, M.R., King, K.W., Bos, J.H., Akland, M., Baffaut, C., Beck, G., Bierer, A.M., Bosch, D.D., Brooks, E., Buda, A.R., Cavigelli, M.A., Faulkner, J., Feyereisen, G.W., Fortuna, A., Gamble, J.D., Hanrahan, B.R., Hussain, M., Kovar, J.L., Lee, B., Leytem, A.B., Liebig, M.A., Line, D., Macrae, M., Moorman, T.B., Moriasi, D.N., Mumbi, R., Nelson, N., Ortega-Pieck, A., Osmond, D., Penn, C.J., Pisani, O., Reba, M.L., Smith, D.R., Unrine, J., Webb, P., White, K.E., Wilson, H., Witthaus, L.M. 2023. Uncertainty in phosphorus fluxes and budgets across the U.S. long-term agroecosystem research network. Journal of Environmental Quality. 52(4):837-885. https://doi.org/10.1002/jeq2.20485.On-the-go sensing to map soil and nutrient levels and its relationship with corn yield and grain quality

- (Abstract Only)Within-field yield stability and gross margin variations across corn fields and implications for precision conservation
                                                        

- (Peer Reviewed Journal)Adhikari, K., Smith, D.R., Hajda, C.B., Kharel, T.P. 2023. Within-field yield stability and gross margin variations across corn fields and implications for precision conservation. Precision Agriculture. 24(4):1401-1416. https://doi.org/10.1007/s11119-023-09995-7.Optimizing agronomic management for soil health, water quality, crop production and profitability in the Texas Blackland Prairie

- (Abstract Only)Twenty years of conservation effects assessment in the St. Joseph River watershed, Indiana
                                                        

- (Peer Reviewed Journal)Williams, M.R., Livingston, S.J., Duriancik, L.F., Flanagan, D.C., Frankenberger, J.R., Gillespie, R.B., Gonzalez, J.M., Huang, C., Penn, C.J., Smith, D.R., Renschler, C.S. 2023. Twenty years of conservation effects assessment in the St. Joseph River watershed, Indiana. Journal of Soil and Water Conservation. 78(1):12A-19A. https://doi.org/10.2489/jswc.2023.1204A.Phosphorus sorption and desorption as impacted by long-term cover cropping at two soil surface depths

- (Peer Reviewed Journal)Unraveling the effects of management and climate on carbon fluxes of U.S. croplands using the USDA Long-Term Agroecosystem (LTAR) network
                                                        

- (Peer Reviewed Journal)Menefee, D.S., Scott, R.L., Abraha, M., Alfieri, J.G., Baker, J.M., Browning, D.M., Chen, J., Gonet, J.M., Johnson, J.M., Miller, G.R., Nifong, R.L., Robertson, P., Russel, E.R., Saliendra, N.Z., Schreiner-Mcgraw, A.P., Suyker, A., Wagle, P., Wente, C.D., White Jr, P.M., Smith, D.R. 2022. Unraveling the effects of management and climate on carbon fluxes of U.S. croplands using the USDA Long-Term Agroecosystem (LTAR) network. Agricultural and Forest Meteorology. 326. Article 109154. https://doi.org/10.1016/j.agrformet.2022.109154.Mapping within-field yield stability and gross margin variations for precision conservation decisions

- (Abstract Only)Adhikari, K., Smith, D.R., Hajda, C.B., Kharel, T.P. 2022. Mapping within-field yield stability and gross margin variations for precision conservation decisions. [abstract]. ASA-CSSA-SSSA International Annual Meeting. Paper No. 141510.Manureshed management to overcome longstanding nutrient imbalances in U.S. agriculture
                                                        

- (Peer Reviewed Journal)Flynn, K.C., Spiegal, S.A., Kleinman, P.J., Meinen, R.J., Smith, D.R. 2022. Manureshed management to overcome longstanding nutrient imbalances in U.S. agriculture. Resources Conservation and Recycling. 188. Article 106632. https://doi.org/10.1016/j.resconrec.2022.106632.Dual-isotope approach for assessing agricultural management effects on nutrient dynamics: Proof of concept
                                                        

- (Peer Reviewed Journal)Bos, J.H., Williams, M.R., Penn, C.J., Smith, D.R. 2022. Dual-isotope approach for assessing agricultural management effects on nutrient dynamics: Proof of concept. Agrosystems, Geosciences & Environment. 5:e20306. https://doi.org/10.1002/agg2.20306.Clean Water Act at 50: Celebrating the golden anniversary of the blue policy
                                                        

- (Peer Reviewed Journal)Smith, D.R. 2022. Clean Water Act at 50: Celebrating the golden anniversary of the blue policy. Journal of Environmental Quality. 51(5):775-779. https://doi.org/10.1002/jeq2.20407.Addressing conservation practice limitations and trade-offs for reducing phosphorus loss from agricultural fields
                                                        

- (Peer Reviewed Journal)Kleinman, P.J., Osmond, D.L., Christianson, L.E., Flaten, D.N., Ippolito, J.A., Jarvie, H.P., Kaye, J.P., King, K.W., Leytem, A.B., McGrath, J.M., Nelson, N.O., Shober, A.L., Smith, D.R., Staver, K.W., Sharpley, A.N. 2022. Addressing conservation practice limitations and trade-offs for reducing phosphorus loss from agricultural fields. Agricultural and Environmental Letters. 7(2). Article e20084. https://doi.org/10.1002/ael2.20084.Using UAS-multispectral images to predict cord yield under different planting dates

- (Abstract Only)Sapkota, B., Sarkar, S., Baath, G.S., Flynn, K.C., Smith, D.R. 2022. Using UAS-multispectral images to predict cord yield under different planting dates. ASA-CSSA-SSSA Annual Meeting Abstracts [abstract], Baltimore, MD, November 6-9, 2022.Evaluation of cotton emergence using multi-band spectral imagery for organic production systems

- (Abstract Only)Sarkar, S., Baath, G.S., Arun, B., Sapkota, B., Flynn, K.C., Smith, D.R. 2022. Evaluation of cotton emergence using multi-band spectral imagery for organic production systems. ASA-CSSA-SSSA Annual Meeting Abstracts. Baltimore, MD, November 6-9, 2022.Mapping soil health and grain quality variations across a corn field in Texas

- (Proceedings)Adhikari, K., Smith, D.R., Hajda, C.B. 2022. Mapping soil health and grain quality variations across a corn field in Texas. In: Proceedings of the 15th International Conference on Precision Agriculture, June 26-29, 2022, Minneapolis, Minnesota. p. 1-5.Mapping within-field soil health variations using apparent electrical conductivity, topography, and machine learning
                                                        

- (Peer Reviewed Journal)Adhikari, K., Smith, D.R., Collins, H.P., Hajda, C.B., Acharya, B.S., Owens, P.R. 2022. Mapping within-field soil health variations using apparent electrical conductivity, topography, and machine learning. Agronomy. 12. Article 1019. https://doi.org/10.3390/agronomy12051019.Can soil health explain grain quality? A case study of a corn field in Texas
                                                        

- (Peer Reviewed Journal)Adhikari, K., Smith, D.R., Hajda, C.B., Owens, P.R. 2022. Can soil health explain grain quality? A case study of a corn field in Texas. Agricultural & Environmental Letters. 7. Article e20078. https://doi.org/10.1002/ael2.20078.P-FLUX: A phosphorus budget dataset spanning diverse agricultural production systems in the United States and Canada
                                                        

- (Peer Reviewed Journal)Williams, M.R., Welikhe, P., Bos, J.H., King, K.W., Akland, M., Augustine, D.J., Baffaut, C., Beck, G., Bierer, A.M., Bosch, D.D., Boughton, E., Brandani, C., Brooks, E., Buda, A.R., Cavigelli, M.A., Faulkner, J., Feyereisen, G.W., Fortuna, A., Gamble, J.D., Hanrahan, B.R., Hussain, M., Kohmann, M., Kovar, J.L., Lee, B., Leytem, A.B., Liebig, M.A., Line, D., Macrae, M., Moorman, T.B., Moriasi, D.N., Nelson, N., Ortega-Pieck, A., Osmond, D., Pisani, O., Ragosta, J., Reba, M.L., Saha, A., Sanchez, J., Silveira, M., Smith, D.R., Spiegal, S.A., Swain, H., Unrine, J., Webb, P., White, K.E., Wilson, H., Witthaus, L.M. 2022. P-FLUX: A phosphorus budget dataset spanning diverse agricultural production systems in the United States and Canada. Journal of Environmental Quality. 51:451–461. https://doi.org/10.1002/jeq2.20351.Long term agroecosystem research experimental watershed network
                                                        

- (Peer Reviewed Journal)Goodrich, D.C., Bosch, D.D., Bryant, R.B., Cosh, M.H., Endale, D.M., Veith, T.L., Kleinman, P.J., Langendoen, E.J., McCarty, G.W., Pierson Jr., F.B., Schomberg, H.H., Smith, D.R., Starks, P.J., Strickland, T.C., Tsegaye, T.D., Awada, T., Swain, H., Derner, J.D., Bestelmeyer, B.T., Schmer, M.R., Baker, J.M., Carlson, B.R., Huggins, D.R., Archer, D.W., Armendariz, G.A. 2022. Long term agroecosystem research experimental watershed network. Hydrological Processes. 36(3). Article e14534. https://doi.org/10.1002/hyp.14534. [Corrigendum: Hydrological Processes: 2022, 36(6), Article e14609. https://doi.org/10.1002/hyp.14609.]Grazing treatment influences recovery of mesic grassland from seasonal drought: An assessment using unmanned aerial vehicle-enabled remote sensing
                                                        

- (Peer Reviewed Journal)Polley, H.W., Kolodziejczyk, C.A., Jones, K.A., Smith, D.R. 2022. Grazing treatment influences recovery of mesic grassland from seasonal drought: An assessment using unmanned aerial vehicle-enabled remote sensing. Rangeland Ecology and Management. 82:12-19. https://doi.org/10.1016/j.rama.2022.01.008.Cropping management in a livestock-pasture-crop integration modifies microbial communities, activity and soil health score
                                                        

- (Peer Reviewed Journal)Menefee, D.S., Collins, H.P., Smith, D.R., Haney, R.L., Fay, P.A., Polley, H.W. 2022. Cropping management in a livestock-pasture-crop integration modifies microbial communities, activity and soil health score. Journal of Environmental Quality. 1-14. https://doi.org/10.1002/jeq2.20315.Connecting soil characteristics to edge-of-field water quality in Ohio
                                                        

- (Peer Reviewed Journal)Osterholz, W.R., Schwab, E.R., Duncan, E.W., Smith, D.R., King, K.W. 2021. Connecting soil characteristics to edge-of-field water quality in Ohio. Journal of Environmental Quality. Article 20308. https://doi.org/10.1002/jeq2.20308.LTAR Phosphorus Budget Dataset
                                                        

- (Other)Williams, M.R., Weilkhe, P., Bos, J.H., King, K.W., Akland, M., Augustine, D.J., Baffaut, C., Beck, G., Bierer, A.M., Bosch, D.D., Boughton, E., Brandani, C., Brooks, E., Buda, A.R., Cavigelli, M.A., Faulkner, J., Feyereisen, G.W., Fortuna, A., Gamble, J.D., Hanrahan, B.R., Hussain, M., Kohmann, M., Kovar, J.L., Lee, B., Leytem, A.B., Liebig, M.A., Line, D., Macrae, M., Moorman, T.B., Moriasi, D.N., Nelson, N., Ortega-Pieck, A., Osmond, D., Pisani, O., Ragosta, J., Reba, M.L., Saha, A., Sanchez, J., Silveira, M., Smith, D.R., Spiegal, S.A., Swain, H., Unrine, J., Webb, P., White, K.E., Wilson, H., Witthaus, L.M. 2022. LTAR Phosphorus Budget Dataset. Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1523365.UAV-enabled quantification of grazing-induced changes in uniformity of green cover on semi-arid and mesic grasslands
                                                        

- (Peer Reviewed Journal)Polley, H.W., Kolodziejczyk, C.A., Jones, K.A., Derner, J.D., Augustine, D.J., Smith, D.R. 2022. UAV-enabled quantification of grazing-induced changes in uniformity of green cover on semi-arid and mesic grasslands. Rangeland Ecology and Management. 80:68-77. https://doi.org/10.1016/j.rama.2021.10.001.The Conservation Effects Assessment Project - Watershed Assessment Studies Network
                                                        

- (Government Publication)Baffaut, C., Moriasi, D.N., Duriancik, L., Tsegaye, T.D., Bjorneberg, D.L., Bosch, D.D., Faulkner, J., Harter, T., Huang, C., Johnson, L., King, K.W., Kisekka, I., Kleinman, P.J., Lizotte Jr, R.E., Locke, M.A., Mccarty, G.W., Moorman, T.B., Reba, M.L., Smith, D.R., Wang, D., Williams, M.R., Wilson, G.V. 2021. The Conservation Effects Assessment Project - Watershed Assessment Studies Network [brochure]. Government Publication/Report. https://doi.org/10.32747/2021.8078214.nrcsLong-term performance of three mesophilic anaerobic digesters to convert animal and agro-industrial wastes into organic fertilizer
                                                        

- (Peer Reviewed Journal)Zhang, X., Lopes, I., Ni, J., Yuan, Y., Huang, C., Smith, D.R., Chaubey, I., Wu, S. 2021. Long-term performance of three mesophilic anaerobic digesters to convert animal and agro-industrial wastes into organic fertilizer. Journal of Cleaner Production. 307. Article 127271. https://doi.org/10.1016/j.jclepro.2021.127271.Long-term performance of three mesophilic anaerobic digesters to convert animal and agro-industrial wastes into organic fertilizer
                                                        

- (Peer Reviewed Journal)Zhang, X., Lopes, I.M., Ni, J., Yuan, Y., Huang, C., Smith, D.R., Chaubey, I., Wu, S. 2021. Long-term performance of three mesophilic anaerobic digesters to convert animal and agro-industrial wastes into organic fertilizer. Agricultural Water Management. 307. Article 127271. https://doi.org/10.1016/j.jclepro.2021.127271.One size does not fit all: towards regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed
                                                        

- (Peer Reviewed Journal)Macrae, M., Jarvie, H., Brouwer, R., Gunn, G., Reid, K., Joosse, P., King, K.W., Kleinman, P.J., Smith, D.R., Williams, M.R., Zwonitzer, M. 2021. One size does not fit all: towards regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed. Journal of Environmental Quality. 50(3):529-546. https://doi.org/10.1002/jeq2.20218.Transitioning from conventional continuous grazing to planned rest-rotation grazing: A case study from Central Texas

- (Peer Reviewed Journal)Long-term effect of poultry litter application on phosphorus balances and runoff losses
                                                        

- (Peer Reviewed Journal)Bos, J.H., Williams, M.R., Smith, D.R., Armstrong, S., Harmel, R.D. 2021. Long-term effect of poultry litter application on phosphorus balances and runoff losses. Journal of Environmental Quality. 50(3):639-652. https://doi.org/10.1002/jeq2.20219.Corn response to selected soil health indicators in a Texas drought
                                                        

- (Peer Reviewed Journal)Adhikari, K., Smith, D.R., Collins, H.P., Haney, R.L., Wolfe, J. 2021. Corn response to selected soil health indicators in a Texas drought. Ecological Indicators. 125. Article 107482. https://doi.org/10.1016/j.ecolind.2021.107482.Journal of environmental quality celebrates 50 years of cutting-edge science

- (Other)Historical shifts in United States manuresheds

- (Abstract Only)Flynn, K.C., Spiegal, S.A., Smith, D.R., Kleinman, P.J. 2020. Historical shifts in United States manuresheds. ASA-CSSA-SSSA Annual Meeting Virtual, November 9-13, 2020.Sweet corn phosphorus uptake from sandy soil amended with anaerobically-digested manure
                                                        

- (Peer Reviewed Journal)Collins, H.P., Kimura, E., Smith, D.R. 2020. Sweet corn phosphorus uptake from sandy soil amended with anaerobically-digested manure. Communications in Soil Science and Plant Analysis. 51(18):2398-2413. https://doi.org/10.1080/00103624.2020.1836208.Importance and strength of environmental controllers of soil organic carbon changes with scale
                                                        

- (Peer Reviewed Journal)Adhikari, K., Mishra, U., Owens, P.R., Libohova, Z., Wills, S.A., Riley, W.J., Hoffman, F.M., Smith, D.R. 2020. Importance and strength of environmental controllers of soil organic carbon changes with scale. Geoderma. 375:114472. Available: https://doi.org/10.1016/j.geoderma.2020.114472.Comparative analysis of water budgets across the U.S. long-term agroecosystem research network
                                                        

- (Peer Reviewed Journal)Baffaut, C., Baker, J.M., Biederman, J.A., Bosch, D.D., Brooks, E.S., Buda, A.R., Demaria, E.M., Elias, E.H., Flerchinger, G.N., Goodrich, D.C., Hamilton, S.K., Hardegree, S.P., Harmel, R.D., Hoover, D.L., King, K.W., Kleinman, P.J., Liebig, M.A., McCarty, G.W., Moglen, G.E., Moorman, T.B., Moriasi, D.N., Okalebo, J., Pierson Jr, F.B., Russell, E.S., Saliendra, N.Z., Saha, A.K., Smith, D.R., Yasarer, L.M. 2020. Comparative analysis of water budgets across the U.S. long-term agroecosystem research network. Journal of Hydrology. 588. https://doi.org/10.1016/j.jhydrol.2020.125021.Manureshed delineation via analysis of county-level data from IPNI-NuGIS and USDA-NASS(2012)
                                                        

- (Database / Dataset)Spiegal, S.A., Kleinman, P.J., Endale, D.M., Bryant, R.B., Dell, C.J., Goslee, S.C., Meinen, R.J., Flynn, K.C., Baker, J.M., Browning, D.M., McCarty, G.W., Bittman, S., Carter, J.D., Cavigelli, M.A., Duncan, E., Gowda, P.H., Li, X., Ponce, G., Raj, C., Silveira, M., Smith, D.R., Arthur, D.K., Yang, Q., Nezat, C., Vandenberg, B.C. 2020. Manureshed delineation via analysis of county-level data from IPNI-NuGIS and USDA-NASS(2012). Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1518435.Manuresheds: Advancing nutrient recycling in US agriculture
                                                        

- (Peer Reviewed Journal)Spiegal, S.A., Kleinman, P.J., Endale, D.M., Bryant, R.B., Dell, C.J., Goslee, S.C., Meinen, R.J., Flynn, K.C., Baker, J.M., Browning, D.M., McCarty, G.W., Bittman, S., Carter, J.D., Cavigelli, M.A., Duncan, E.W., Gowda, P.H., Li, X., Ponce, G., Raj, C., Silveira, M., Smith, D.R., Arthur, D.K., Yang, Q. 2020. Manuresheds: Advancing nutrient recycling in US agriculture. Agricultural Systems. 182:102813. https://doi.org/10.1016/j.agsy.2020.102813.Using the conservation practice effectiveness (CoPE) database to assess adoption tradeoffs

- (Peer Reviewed Journal)Long-term agro-economic and environmental assessment of adaptive nutrient management on cropland fields with established structural conservation practices
                                                        

- (Peer Reviewed Journal)Smith, D.R., Harmel, R.D., Haney, R.L. 2020. Long-term agro-economic and environmental assessment of adaptive nutrient management on cropland fields with established structural conservation practices. Journal of Soil and Water Conservation. 75(3):416-425. https://doi.org/10.2489/jswc.75.3.416.The LTAR croplands common experiment: long-term research for improved agricultural sustainability

- (Abstract Only)Liebig, M.A., Robertson, P., Archer, D.W., Awada, T., Baker, J.M., Cavigelli, M.A., Collins, H.P., Dell, C.J., Huggins, D.R., Jaradat, A.A., Johnson, J.M., King, K.W., Kleinman, P.J., Kovar, J.L., Locke, M.A., Maul, J.E., Mccarty, G.W., Mirsky, S.B., Moorman, T.B., Pisani, O., Smith, D.R., Starks, P.J., Strickland, T.C., Sudduth, K.A., Veum, K.S., Wienhold, B.J. 2019. The LTAR croplands common experiment: long-term research for improved agricultural sustainability. Meeting Abstract. 1.Performance of the Soil Vulnerability Index with respect to slope, digital elevation model resolution, and hydrologic soil group
                                                        

- (Peer Reviewed Journal)Lohani, S., Baffaut, C., Thompson, A.L., Aryal, N., Bingner, R.L., Bjorneberg, D.L., Bosch, D.D., Bryant, R.B., Buda, A.R., Dabney, S.M., Davis, A.R., Duriancik, L.F., James, D.E., King, K.W., Kleinman, P.J., Locke, M.A., McCarty, G.W., Pease, L.A., Reba, M.L., Smith, D.R., Tomer, M.D., Veith, T.L., Williams, M.R., Yasarer, L.M. 2020. Performance of the Soil Vulnerability Index with respect to slope, digital elevation model resolution, and hydrologic soil group. Journal of Soil and Water Conservation. 75(1):12-27. https://doi.org/10.2489/jswc.75.1.12.The past, present, and future of blind inlets as a surface water best management practice
                                                        

- (Peer Reviewed Journal)Penn, C.J., Gonzalez, J.M., Williams, M.R., Smith, D.R., Livingston, S.J. 2019. The past, present, and future of blind inlets as a surface water best management practice. Critical Reviews in Environmental Science Technology. 50(7):743-768. https://doi.org/10.1080/10643389.2019.1642836.The latitudes, attitudes, and platitudes of watershed phosphorus management in North America
                                                        

- (Peer Reviewed Journal)Smith, D.R., Macrae, M., Kleinman, P.J., Jarvie, H.P., King, K.W., Bryant, R.B. 2019. The latitudes, attitudes, and platitudes of watershed phosphorus management in North America. Journal of Environmental Quality. 48(5):1176-1190. https://doi.org/10.2134/jeq2019.03.0136.Development of Agricultural Conservation Reduction Estimator (ACRE), a simple field-scale conservation planning and evaluation tool

- (Peer Reviewed Journal)The role of field-scale management on soil and surface runoff C/N/P stoichiometry
                                                        

- (Peer Reviewed Journal)Smith, D.R., Jarvie, H.P., Harmel, R.D., Haney, R.L. 2019. The role of field-scale management on soil and surface runoff C/N/P stoichiometry. Journal of Environmental Quality. 48(5):1543-1548. https://doi.org/10.2134/jeq2018.09.0338.Managing agricultural nonpoint sources of contaminants under a changing climate: USDA Agricultural Research Service perspectives

- (Abstract Only)Bryant, R.B., Buda, A.R., Baker, J.M., Bosch, D.D., Garbrecht, J.D., Smith, D.R., Kleinman, P.J., Tsegaye, T.D. 2019. Managing agricultural nonpoint sources of contaminants under a changing climate: USDA Agricultural Research Service perspectives[abstract]. American Chemical Society Abstracts. Pg. 1.Comparison of nutrient loss pathways: Run-off and seepage flow in vertisols
                                                        

- (Peer Reviewed Journal)Harmel, R.D., Smith, D.R., Haney, R.L., Allen, P.M. 2019. Comparison of nutrient loss pathways: Run-off and seepage flow in vertisols. Hydrological Processes. 2019:1-10. https://doi.org/10.1002/hyp.13474.Cholesterol, yield, tibia and clavicle ash of broilers fed high available Phosphorus corn and/or Phytase with/without Alum litter treatment

- (Peer Reviewed Journal)Miles, D.M., Moore Jr, P.A., Brooks, J.P., Smith, D.R., Stilborn, H.L., Rice, D.W., Branton, S.L. 2019. Cholesterol, yield, tibia and clavicle ash of broilers fed high available Phosphorus corn and/or Phytase with/without Alum litter treatment. International Journal of Poultry Science. 18(7)349-352.Data for fertilizer management and environmental factors drive N2O and NO3 losses in corn: A meta-analysis
                                                        

- (Other)Eagle, A., Drury, C., Halvorson, A., Hoben, J., Maharjan, B., Parkin, T.B., Robertson, P.G., Smith, D.R., Venterea, R.T. 2018. Data for fertilizer management and environmental factors drive N2O and NO3 losses in corn: A meta-analysis. doi.org/10.4231/r7ns0s57.Carbon, nitrogen, and phosphorus stoichiometric response to hydrologic extremes in a tributary to Lake Erie, USA
                                                        

- (Peer Reviewed Journal)Smith, D.R., Jarvie, H.P. 2018. Carbon, nitrogen, and phosphorus stoichiometric response to hydrologic extremes in a tributary to Lake Erie, USA. Agricultural and Environmental Letters. 3:180043. https://doi.org/10.2134/ael2018.08.0043.Transforming soil phosphorus fertility management strategies to support the delivery of multiple ecosystem services from agricultural systems
                                                        

- (Peer Reviewed Journal)Macintosh, K.A., Doody, D.G., Withers, P.J., McDowell, R.W., Smith, D.R., Johnson, L.T., Bruulsema, T.W., O'Flaherty, V., McGrath, J.W. 2019. Transforming soil phosphorus fertility management strategies to support the delivery of multiple ecosystem services from agricultural systems. Science of the Total Environment. 649:90-98. https://doi.org/10.1016/j.scitotenv.2018.08.272.Controls of event-based nutrient transport within nested headwater agricultural watersheds of the western Lake Erie basin

- (Peer Reviewed Journal)Williams, M.R., Livingston, S.J., Penn, C.J., Smith, D.R., King, K.W., Huang, C. 2018. Controls of event-based nutrient transport within nested headwater agricultural watersheds of the western Lake Erie basin. Journal of Hydrology. 559:749-761.Vegetated treatment area (VTAs) efficiences for E. coli and nutrient removal on small-scale swine operations
                                                        

- (Peer Reviewed Journal)Harmel, R.D., Pampell, R., Gentry, T., Smith, D.R., Hajda, C.B., Wagner, K., Smith, P.K., Haney, R.L., Higgs, K.D. 2018. Vegetated treatment area (VTAs) efficiences for E. coli and nutrient removal on small-scale swine operations. International Soil and Water Conservation Research. 6(2):153-164. https://doi.org/10.1016/j.iswcr.2018.02.002.Right practice, right place: A conservation planning toolbox for meeting water quality goals in the Corn Belt
                                                        

- (Popular Publication)Mclellan, E., Schilling, K.E., Wolter, C.F., Tomer, M.D., Porter, S.A., Magner, J.A., Smith, D.R., Prokopy, L.S. 2018. Right practice, right place: A conservation planning toolbox for meeting water quality goals in the Corn Belt. Journal of Soil and Water Conservation. 73(2):29A-34A.Uncertainty of water budget closure across the Long-Term Agroecosystems Research network

- (Abstract Only)Baffaut, C., Brooks, E., Pierson Jr, F.B., Demaria, E.M., Goodrich, D.C., Elias, E.H., Hoover, D.L., Liebig, M.A., Moriasi, D.N., Harmel, R.D., Smith, D.R., Okalebo, J.A., Moorman, T.B., Yasarer, L.M., Hamilton, S.K., Bosch, D.D., King, K.W., Saha, A.K., Buda, A.R., Mccarty, G.W. 2018. Uncertainty of water budget closure across the Long-Term Agroecosystems Research network. ASABE Annual International Meeting, July 29-Auguast 1, 2018, Detroit, Michigan. Paper #1800938.Environmental indicator principium with case references to agricultural soil, water, and air quality and model-derived indicators
                                                        

- (Peer Reviewed Journal)Zhang, T.Q., Zheng, Z.M., Lal, R., Lin, Z.Q., Sharpley, A.N., Shober, A.L., Smith, D.R., Tan, C.S., Van Cappellen, P. 2018. Environmental indicator principium with case references to agricultural soil, water, and air quality and model-derived indicators. Journal of Environmental Quality. 47(2):191-202. https://doi.org/10.2134/jeq2017.10.0398.Soil CO2 response to organic and amino acids
                                                        

- (Peer Reviewed Journal)Haney, R.L., Haney, E.B., White, M.J., Smith, D.R. 2018. Soil CO2 response to organic and amino acids. Applied Soil Ecology. 125:297-300. https://doi.org/10.1016/j.apsoil.2017.12.016.Phosphorus and nitrogen limitation and impairment of headwater streams relative to rivers in Great Britain: A national perspective on eutrophication
                                                        

- (Peer Reviewed Journal)Jarvie, H.P., Smith, D.R., Norton, L., Edwards, F., Bowes, M., King, S.M., Scarlett, P., Davies, S., Dils, R., Bachiller-Jareno, N. 2018. Phosphorus and nitrogen limitation and impairment of headwater streams relative to rivers in Great Britain: A national perspective on eutrophication. Science of the Total Environment. 621:849-862. https://doi.org/10.1016/j.scitotenv.2017.11.128.Removal of lithium citrate from H3A for determination of plant available P
                                                        

- (Peer Reviewed Journal)Haney, R.L., Haney, E.B., Smith, D.R., White, M.J. 2017. Removal of lithium citrate from H3A for determination of plant available P. Open Journal of Soil Science. 7:301-314. https://doi.org/10.4236/ojss.2017.711022.Carbon, nitrogen, and phosphorus stoichiometry and eutrophication in River Thames Tributaries, UK
                                                        

- (Peer Reviewed Journal)Smith, D.R., Jarvie, H.P., Bowers, M.J. 2017. Carbon, nitrogen, and phosphorus stoichiometry and eutrophication in River Thames Tributaries, UK. Agricultural and Environmental Letters. 2:170020. https://doi.org/10.2134/ael2017.06.0020.Assessing edge-of-field nutrient runoff from agricultural lands in the United States: How clean is clean enough?
                                                        

- (Peer Reviewed Journal)Harmel, R.D., Pampell, R.A., Leytem, A.B., Smith, D.R., Haney, R.L. 2018. Assessing edge-of-field nutrient runoff from agricultural lands in the United States: How clean is clean enough? Journal of Soil and Water Conservation. 73(1):9-23. https://doi.org/10.2489/jswc.73.1.9.The soil health tool - theory and initial broad-scale application
                                                        

- (Peer Reviewed Journal)Haney, R.L., Haney, E.B., Smith, D.R., Harmel, R.D., White, M.J. 2018. The soil health tool - theory and initial broad-scale application. Applied Soil Ecology. 125:162-168. https://doi.org/10.1016/j.apsoil.2017.07.035.A possible trade-off between clean air and clean water

- (Peer Reviewed Journal)Smith, D.R., Stephensen, M., King, K.W., Jarvie, H.P., Haney, R.L., Williams, M.R. 2017. A possible trade-off between clean air and clean water. Journal of Soil and Water Conservation. 72(4):75A-79A. doi:10.2489/jswc.72.4.75A.Addressing agricultural phosphorus loss in artificially drained landscapes with 4R nutrient management practices

- (Peer Reviewed Journal)King, K.W., Williams, M.R., Smith, D.R., LaBarge, G.A., Reutter, J., Duncan, E.W., Pease, L.A. 2018. Addressing agricultural phosphorus loss in artificially drained landscapes with 4R nutrient management practices. Journal of Soil and Water Conservation. 73:35-47.Linking soil phosphorus to dissolved phosphorus losses in the midwest
                                                        

- (Peer Reviewed Journal)Duncan, E.W., King, K.W., Williams, M.R., LaBarge, G., Pease, L.A., Smith, D.R., Fausey, N.R. 2017. Linking soil phosphorus to dissolved phosphorus losses in the Midwest. Agricultural and Environmental Letters. doi: 10.2134/ael2017.02.0004.Lake Erie, phosphorus and microcystin:  Is it really the farmer's fault?

- (Peer Reviewed Journal)Smith, D.R., Wilson, R., King, K.W., Zwonitzer, M., McGrath, J.M., Harmel, R.D., Haney, R.L., Johnson, L. 2018. Lake Erie, phosphorus and microcystin:  Is it really the farmer's fault? Journal of Soil and Water Conservation. 73(1):48-57.Phosphorus availability in Western Lake Erie Basin drainage waters: legacy evidence across spatial scales
                                                        

- (Peer Reviewed Journal)King, K.W., Williams, M.R., Johnson, L.T., Smith, D.R., LaBarge, G.A., Fausey, N.R. 2017. Phosphorus availability in Western Lake Erie Basin drainage waters: legacy evidence across spatial scales. Journal of Environmental Quality. 46:466-469.Measuring edge-of-field water quality:  Where we have been and the path forward

- (Peer Reviewed Journal)Harmel, R.D., King, K.W., Busch, D., Smith, D.R., Birgand, F., Haggard, B. 2018. Measuring edge-of-field water quality:  Where we have been and the path forward. Journal of Soil and Water Conservation. 73(1):86-96.Atrazine sorption by biochar, tire chips, and steel slag as media for blind inlets: A kinetic and isotherm sorption approach
                                                        

- (Peer Reviewed Journal)Gonzalez, J.M., Shipitalo, M.J., Smith, D.R., Pappas, E.A., Livingston, S.J. 2016. Atrazine sorption by biochar, tire chips, and steel slag as media for blind inlets: A kinetic and isotherm sorption approach. Journal of Water Resource and Protection. 8:1266-1282.Increased soluble phosphorus loads to Lake Erie: Unintended consequences of conservation practices?
                                                        

- (Peer Reviewed Journal)Jarvie, H.P., Johnson, L.T., Sharpley, A.N., Smith, D.R., Baker, D.B., Bruuselma, T., Confessor, R. 2017. Increased soluble phosphorus loads to Lake Erie: Unintended consequences of conservation practices? Journal of Environmental Quality. 46:123-132. https://doi.org/10.2134/jeq2016.07.0248.Evaluation of H3A for determination of plant available P vs. FeAIO strips
                                                        

- (Peer Reviewed Journal)Haney, R.L., Haney, E.B., Harmel, R.D., Smith, D.R., White, M.J. 2016. Evaluation of H3A for determination of plant available P vs. FeAIO strips. Open Journal of Soil Science. 6:175-187. doi:10.4236/ojss.2016.611017.Guiding phosphorus stewardship for multiple ecosystem services
                                                        

- (Peer Reviewed Journal)MacDonald, G.K., Jarvie, H.P., Withers, P.J., Doody, D.G., Keeler, B.L., Haygarth, P.M., Johnson, L.T., McDowell, R.W., Miyittah, M.K., Powers, S.M., Sharpley, A.N., Shen, J., Smith, D.R., Weintraub, M.N., Zhang, T. 2016. Guiding phosphorus stewardship for multiple ecosystem services. Ecosystem Health and Sustainability. 2(12):e01251. doi:10.1002/ehs2.1251.Phosphorus fertilization, soil stratification and potential water quality impacts
                                                        

- (Peer Reviewed Journal)Smith, D.R., Huang, C., Haney, R.L. 2017. Phosphorus fertilization, soil stratification and potential water quality impacts. Journal of Soil and Water Conservation. 72(5):417-424. https://doi.org/10.2489/jswc.72.5.417.Hydrologic and biogeochemical controls on phosphorus export from western Lake Erie tributaries
                                                        

- (Peer Reviewed Journal)Williams, M.R., King, K.W., Baker, D., Johnson, L., Smith, D.R., Fausey, N.R. 2016. Hydrologic and biogeochemical controls on phosphorus export from western Lake Erie tributaries. Journal of Great Lakes Research. 42:1403-1411.Quantifying attachment and antibiotic resistance of Escherichia coli from conventional and organic swine manure
                                                        

- (Peer Reviewed Journal)Zwonitzer, M.R., Soupir, M.L., Jarboe, L.R., Smith, D.R. 2016. Quantifying attachment and antibiotic resistance of Escherichia coli from conventional and organic swine manure. Journal of Environmental Quality. 45(2):609-617. doi:10.2134/jeq2015.05.0245.Influence of instream habitat and water chemistry on amphibians within channelized agricultural headwater streams
                                                        

- (Peer Reviewed Journal)Jordan, M.A., Casteneda, A., Smiley, P.C., Gillespie, R.B., Smith, D.R., King, K.W. 2016. Influence of instream habitat and water chemistry on amphibians within channelized agricultural headwater streams. Agriculture, Ecosystems and Environment. 230:87-97.Conservation implications of amphibian habitat relationships within channelized agricultural headwater streams in the midwestern United States

- (Abstract Only)Smiley, P.C., Jordan, M.A., Castamdeda, A., Gillespie, R.B., Smith, D.R., King, K.W. 2016. Conservation implications of amphibian habitat relationships within channelized agricultural headwater streams in the midwestern United States. Meeting Abstract. 2016 Joint Meeting of Ichthyologists and Herpetologists, July 7-10, 2016, New Orleans, Louisiana.Expansion of the MANAGE database with forest and drainage studies

- (Peer Reviewed Journal)Harmel, R.D., Christianson, L.E., McBroom, M.W., Smith, D.R., Higgs, K.D. 2016. Expansion of the MANAGE database with forest and drainage studies. Water Resources Research. 52(5):1275-1279. doi:10.1111/1752-1688.12438.Assessment and synthesis of 50 years of published drainage phosphorus losses
                                                        

- (Peer Reviewed Journal)Christianson, L.E., Harmel, R.D., Smith, D.R., Williams, M.R., King, K.W. 2016. Assessment and synthesis of 50 years of published drainage phosphorus losses. Journal of Environmental Quality. 45:1467-1477. doi:10.2134/jeq2015.12.0593.Open inlet conversion: Water quality benefits of two designs

- (Proceedings)Feyereisen, G.W., Francesconi, W., Smith, D.R., Papiernik, S.K., Wente, C.D. 2016. Open inlet conversion: Water quality benefits of two designs. In: Strock, Jeffrey S. editor. Proceedings of the Tenth International Drainage Symposium. September 7-9, 2016, Minneapolis, Minnesota.Augmenting watershed model calibration with incorporation of ancillary data sources and qualitative soft data sources
                                                        

- (Peer Reviewed Journal)Yen, H., White, M.J., Ascough II, J.C., Smith, D.R., Arnold, J.G. 2016. Augmenting watershed model calibration with incorporation of ancillary data sources and qualitative soft data sources. Journal of the American Water Resources Association. 52(3):788-798. doi:10.1111/1752-1688.12428.Phosphorus modeling in tile drained agricultural systems using APEX
                                                        

- (Peer Reviewed Journal)Francesconi, W., Williams, C.O., Smith, D.R., Williams, J.R., Jeong, J. 2016. Phosphorus modeling in tile drained agricultural systems using APEX. Journal of Fertilizers & Pesticides. 7(1):166. doi:10.4172/2471-2728.1000166.Effect of conservation practices implemented by USDA programs at field and watershed scales

- (Peer Reviewed Journal)Her, Y., Chaubey, I., Frankenberger, J., Smith, D.R. 2016. Effect of conservation practices implemented by USDA programs at field and watershed scales. Journal of Soil and Water Conservation. 71(3):204-221.Effects of field storage method on E. coli concentrations measured in storm water runoff
                                                        

- (Peer Reviewed Journal)Harmel, R.D., Wagner, K., Martin, E., Smith, D.R., Wanjugi, P., Gentry, T., Gregory, L., Hendon, T. 2016. Effects of field storage method on E. coli concentrations measured in storm water runoff. Environmental Monitoring and Assessment. 188:170. doi:10.1007/S10661-016-5183-9.Blind inlets: Conservation practices to reduce herbicide losses from closed depressional areas

- (Peer Reviewed Journal)Gonzalez, J.M., Smith, D.R., Livingston, S.J., Pappas, E.A., Zwonitzer, M. 2016. Blind inlets: Conservation practices to reduce herbicide losses from closed depressional areas. Journal of Soils and Sediments. doi:10.1007/s11368-016-1362-0.Managing acute phosphorus loss with fertilizer source and placement: Proof of concept

- (Peer Reviewed Journal)Smith, D.R., Harmel, R.D., Williams, M.R., Haney, R.L., King, K.W. 2016. Managing acute phosphorus loss with fertilizer source and placement: Proof of concept. Agricultural and Environmental Letters. 1:1. doi:10.2134/ael2015.12.0015.Evaluation of dynamically dimensioned search algorithm for optimizing SWAT by altering sampling distributions and searching range
                                                        

- (Peer Reviewed Journal)Yen, H., Jeong, J., Smith, D.R. 2016. Evaluation of dynamically dimensioned search algorithm for optimizing SWAT by altering sampling distributions and searching range. Journal of the American Water Resources Association. 52(2):443-455. doi:10.1111/1752-1688.12394.Vegetated treatment area effectiveness at reducing nutrient runoff from small swine operations in central Texas
                                                        

- (Peer Reviewed Journal)Higgs, K.D., Harmel, R.D., Wagner, K., Smith, P.K., Haney, R.L., Smith, D.R., Pampell, R. 2015. Vegetated treatment area effectiveness at reducing nutrient runoff from small swine operations in central Texas. Applied Engineering in Agriculture. 31(4):621-629.Modeling conservation practices in APEX: From the field to the watershed
                                                        

- (Peer Reviewed Journal)Francesconi, W., Smith, D.R., Flanagan, D.C., Huang, C., Wang, X. 2015. Modeling conservation practices in APEX: From the field to the watershed. Journal of Great Lakes Research. 41(3):760-769.Effect of alternative surface inlet designs on sediment and phosphorus drainage losses

- (Abstract Only)Vertical tillage impacts on water quality derived from rainfall simulations

- (Peer Reviewed Journal)Smith, D.R., Pappas, E.A. 2015. Vertical tillage impacts on water quality derived from rainfall simulations. Soil and Tillage Research. 153:155-160.Phosphorus fate, management and modeling in artificially drained systems

- (Peer Reviewed Journal)Kleinman, P.J., Smith, D.R., Bolster, C.H., Easton, Z.M. 2015. Phosphorus fate, management and modeling in artificially drained systems. Journal of Environmental Quality. 44:460-466.Evaluation of the negative impacts of exposure to agricultural ditch water in fishes using streamside bioassays and field biomarkers

- (Abstract Only)Gillespie, R.G., Smiley, P.C., Sanders, K., King, K.W., Smith, D.R. 2015. Evaluation of the negative impacts of exposure to agricultural ditch water in fishes using streamside bioassays and field biomarkers. Meeting Abstract. 2015 Indiana Academy of Sciencs Meeting, March 21, 2015, Indianapolis, Indiana.What is causing the harmful algal blooms in Lake Erie?
                                                        

- (Peer Reviewed Journal)Smith, D.R., King, K.W., Williams, M.R. 2015. What is causing the harmful algal blooms in Lake Erie? Journal of Soil and Water Conservation. 70(2):27A-29A.Applicability of models to predict phosphorus losses in drained fields: a review

- (Peer Reviewed Journal)Radcliffe, D.E., Reid, D.K., Blomback, K., Bolster, C.H., Collick, A.S., Easton, Z.M., Francesconi, W., Fuka, D.R., Johnsson, H., King, K., Larsbo, M., Youssef, M.A., Mulkey, A.S., Nelson, N.O., Persson, K., Ramirez-Avila, J.J., Schmieder, F., Smith, D.R. 2015. Applicability of models to predict phosphorus losses in drained fields: a review. Journal of Environmental Quality. 44(2):614-628.Evaluating the potential role of denitrifying bioreactors in reducing watershed-scale nitrate loads: A case study comparing three Midwestern (USA) watersheds
                                                        

- (Peer Reviewed Journal)Moorman, T.B., Tomer, M.D., Smith, D.R., Jaynes, D.B. 2015. Evaluating the potential role of denitrifying bioreactors in reducing watershed-scale nitrate loads: A case study comparing three Midwestern (USA) watersheds. Ecological Engineering. 75:441-448. doi: 10.1016/j.ecoleng.2014.11.062.Phosphorus losses from monitored fields with conservation practices in the Lake Erie Basin, USA
                                                        

- (Peer Reviewed Journal)Smith, D.R., Francesconi, W., Livingston, S.J., Huang, C. 2015. Phosphorus losses from monitored fields with conservation practices in the Lake Erie Basin, USA. Ambio. 44(2):S319-S331.Effect of replacing surface inlets with blind or gravel inlets on sediment and phosphorus subsurface drainage losses
                                                        

- (Peer Reviewed Journal)Feyereisen, G.W., Francesconi, W., Smith, D.R., Papiernik, S.K., Krueger, E.S., Wente, C.D. 2015. Effect of replacing surface inlets with blind or gravel inlets on sediment and phosphorus subsurface drainage losses. Journal of Environmental Quality. 44(2):594-604.USDA-ARS Riesel Watersheds, Riesel, Texas, USA: Water quality research database
                                                        

- (Peer Reviewed Journal)Harmel, R.D., Haney, R.L., Smith, D.R., King, K.W. 2014. USDA-ARS Riesel Watersheds, Riesel, Texas, USA: Water quality research database. Water Resources Research. 50:8374-8382.Phosphorus transport in agricultural subsurface drainage: A review

- (Peer Reviewed Journal)King, K.W., Williams, M.R., Macrae, M.L., Fausey, N.R., Smith, D.R., Frankenberger, J., Kleinman, P.J., Brown, L.C. 2014. Phosphorus transport in agricultural subsurface drainage: A review. Journal of Environmental Quality. 44(2):467-85. doi:10.2134/jeq2014.04.0163.Reducing nitrogen export from the corn belt to the Gulf of Mexico: Agricultural strategies for remediating hypoxia
                                                        

- (Peer Reviewed Journal)McLellan, E., Robertson, D., Schilling, K., Tomer, M.D., Kostel, J., Smith, D.R., King, K.W. 2014. Reducing nitrogen export from the corn belt to the Gulf of Mexico: Agricultural strategies for remediating hypoxia. Journal of the American Water Resources Association. 51(1):263-289. https://doi.org/10.1111/jawr.12246.Assessment of pollutants sequestration in flowing waters using Red Mud

- (Abstract Only)Chagas, I., Smith, D.R., Huang, C., Bowling, L. 2014. Assessment of pollutants sequestration in flowing waters using Red Mud [abstract]. American Society of Agronomy Annual Meeting, November 2-5, 2014, Long Beach, CA. 2014 CDROM.Assessment of electrical conductivity as a surrogate measurement for water samples in a tracer injection experiment

- (Abstract Only)Chagas, I., Huang, C., Bowling, L., Smith, D.R. 2014. Assessment of electrical conductivity as a surrogate measurement for water samples in a tracer injection experiment [abstract]. American Society of Agronomy Annual Meeting, November 2-5, 2014, Long Beach, CA. 2014 CDROM.Application of a calibrated/validated Agricultural Policy/Environmental eXtender model to assess sediment and nutrient delivery from the Wildcat Creek Mississippi River Basin Initiative – Cooperative Conservation Partnership

- (Peer Reviewed Journal)Francesconi, W., Smith, D.R., Heathman, G.C., Gonzalez, J.M., Benage, M. 2015. Application of a calibrated/validated Agricultural Policy/Environmental eXtender model to assess sediment and nutrient delivery from the Wildcat Creek Mississippi River Basin Initiative – Cooperative Conservation Partnership. Journal of Soil and Water Conservation Initiative. 70(1):23-35.State of science of phosphorus modeling in tile drained agricultural systems using APEX

- (Peer Reviewed Journal)Surface runoff and tile drainage transport of phosphorus in the Midwestern United States

- (Peer Reviewed Journal)Smith, D.R., King, K.W., Johnson, L., Francesconi, W., Richards, P., Baker, D., Sharpley, A.N. 2014. Surface runoff and tile drainage transport of phosphorus in the Midwestern United States. Journal of Environmental Quality. 44(2):495-502. DOI:10.2134/jeq2014.04.0176.Monitoring and APEX modeling of no-till and reduced-till in tile drained agricultural landscapes for water quality

- (Peer Reviewed Journal)Francesconi, W., Smith, D.R., Heathman, G.C., Wang, X., Williams, C. 2014. Monitoring and APEX modeling of no-till and reduced-till in tile drained agricultural landscapes for water quality. Transactions of the ASABE. 57(3):777-789.Treatment of phosphorus transported from tile and ditch-drained agricultural fields using sorption materials

- (Abstract Only)Penn, C.J., Coale, F.J., Smith, D.R., Kjaergaard, C., Mcgrath, J.M., Lyngsie, G., Bryant, R.B., Feyereisen, G.W., Hansen, H.B. 2013. Treatment of phosphorus transported from tile and ditch-drained agricultural fields using sorption materials [Abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No 348-15.Nitrous oxide emissions in Midwest US maize production vary widely with band-injected liquid N fertilizer rates, timing and nitrapyrin presence
                                                        

- (Peer Reviewed Journal)Burzaco, J.P., Smith, D.R., Vyn, T.J. 2013. Nitrous oxide emissions in Midwest US maize production vary widely with band-injected liquid N fertilizer rates, timing and nitrapyrin presence. Environmental Research Letters. 8(2013)035031(11pp). DOI:10.1088/1748-9326/8/3/035031.Phosphorus in the Lake Erie Basin: How can we better manage our fertilizers?

- (Abstract Only)Smith, D.R. 2013. Phosphorus in the Lake Erie Basin: How can we better manage our fertilizers? [abstract]. ASA-CSSA-SSSA Annual Meeting, November 3-6, 2013, Tampa, FL. 2013 CDROM.Phosphorus losses from drainage systems: breaking the surface tile riser connection

- (Abstract Only)Smith, D.R., Feyereisen, G.W. 2013. Phosphorus losses from drainage systems: breaking the surface tile riser connection [abstract]. ASA-CSSA-SSSA Annual Meeting, November 3-6, 2013, Tampa, FL. 2013 CDROM.Drainage water phosphorus losses in the great lakes basin

- (Abstract Only)Smith, D.R., Richards, P., King, K.W., Francesconi, W., Sharpley, A. 2013. Drainage water phosphorus losses in the great lakes basin [abstract]. ASA-CSSA-SSSA Annual Meeting, November 3-6, 2013, Tampa, FL. 2013 CDROM.Quantifying subsurface hydrology effects on chemical transport in drainage ditches using a 20-meter flume

- (Abstract Only)Yoder, C., Huang, C., Bowling, L., Smith, D.R. 2013. Quantifying subsurface hydrology effects on chemical transport in drainage ditches using a 20-meter flume [abstract]. ASA-CSSA-SSSA Annual Meeting, November 3-6, 2013, Tampa, FL.  2013 CDROM.Similarities in fish-habitat relationships within channelized agricultural headwater streams in Ohio and Indiana

- (Abstract Only)Smiley, P.C., Gillespie, R.G., Sanders, K., King, K.W., Smith, D., Pappas, E.A. 2014. Similarities in fish-habitat relationships within channelized agricultural headwater streams in Ohio and Indiana. Ecological Restoration and Sustainability - Partners for the Future.  Abstract Book for the Fifth Midwest-Great Lakes SER Chapter Meeting. Midwest-Great Lakes SER Chapter, Indianapolis, Indiana. Meeting Abstract. pg 35.Relative importance of water chemistry and habitat to fish communities in headwater streams influenced by agricultural land use

- (Abstract Only)Gillespie, R.G., Smiley, P.C., Sanders, K.E., King, K.W., Smith, D. 2013. Relative importance of water chemistry and habitat to fish communities in headwater streams influenced by agricultural land use. March 25-27, 2013, St. Louis, Missouri.Meeting Abstract. 2013 College of Food Agricultural, and Environmental Sciences Undergraduate Research Symposium, March 25-27, 2013, St. Louis, Missouri. Meeting Abstract.Implications of fish-habitat relationships for designing restoration projects within channelized agricultural headwater streams

- (Abstract Only)Smiley, P.C., Gillespie, R.G., Gonzalez, J.M., King, K.W., Smith, D. 2013. Implications of fish-habitat relationships for designing restoration projects within channelized agricultural headwater streams. Meeting Abstract. 2013 Upper Midwest Stream Restoration Symposium, February 24-27, 2013, La Crosse, Wisconsin. Oral Abstract Guide, pg. 7.Downstream approaches to phosphorus management in agricultural landscapes: Regional applicability and use

- (Peer Reviewed Journal)Kroger, R., Dunne, E.J., Novak, J., King, K.W., Mclellan, E., Smith, D.R., Strock, J., Boomer, K., Tomer, M., Noe, G.B. 2013. Downstream approaches to phosphorus management in agricultural landscapes: Regional applicability and use. Science of the Total Environment. 442:263-274.ArgoEcoSystem-watershed (AgES-W) model evaluation for streamflow and nitrogen/sediment dynamics on a midwest agricultural watershed

- (Proceedings)Ascough II, J.C., David, O., Smith, D.R., Kipka, H., Fink, M., Green, T.R., Krause, P., Mcmaster, G.S., Kralisch, S., Ahuja, L.R. 2012. ArgoEcoSystem-watershed (AgES-W) model evaluation for streamflow and nitrogen/sediment dynamics on a midwest agricultural watershed. In: Seppelt, R., Voinov, A.A., Lange, S., and Bankamp, D. editors,Proceedings of the  Sixth Biennial Meetinf or the International Environmental Modeling and Software Society, Managing Resources of a Limited Planet:  Pathways and Visions Under Uncertainty, July 1-5, 2012, Leipzig, Germany. p. 2179-2186.Phosphorus doesn’t move through sub-surface tile, right?

- (Abstract Only)Smith, D.R. 2012. Phosphorus doesn’t move through sub-surface tile, right? [abstract]. ASA-CSSA-SSSA International Annual Meeting, October 21-24, 2012, Cincinnati, OH. 2012 CDROM.Identifying best management practices to minimize P loss in a tile drained landscape

- (Abstract Only)Francesconi, W., Smith, D.R., Heathman, G.C., Gonzalez, J.M. 2012. Identifying best management practices to minimize P loss in a tile drained landscape. ASA-CSSA-SSSA International Annual Meeting, October 21-24, 2012, Cincinnati, OH. 2012 CDROM.Effectiveness of conservation practices within watersheds: Case study in tile-drained systems

- (Abstract Only)Moorman, T.B., Smith, D.R., King, K.W., Malone, R.W. 2012. Effectiveness of conservation practices within watersheds: Case study in tile-drained systems [abstract]. Abstract Book - 67th International SWCS Annual Conference. p. 24.Managing farmed closed depressional areas using blind inlets to minimize phosphorus and nitrogen losses

- (Peer Reviewed Journal)Smith, D.R., Livingston, S.J. 2013. Managing farmed closed depressional areas using blind inlets to minimize phosphorus and nitrogen losses. Soil Use and Management. 29(1):94-102. DOI: 10.111/j.1475-2743.2012.00441.x.Soil greenhouse gas emissions from three decades long-term experimental field of corn-soybean rotation and tillage treatments

- (Peer Reviewed Journal)Seo, J., Vyn, T.J., Gal, A., Smith, D.R. 2012. Soil greenhouse gas emissions from three decades long-term experimental field of corn-soybean rotation and tillage treatments. Korean Journal of Crop Science. 57(1):89-97.Model development and applications at the USDA-ARS National Soil Erosion Research Laboratory

- (Proceedings)Flanagan, D.C., Huang, C., Smith, D.R., Heathman, G.C. 2012. Model development and applications at the USDA-ARS National Soil Erosion Research Laboratory. In: Proceedings of the 8th International Symposium Agro Envrion, May 1-4, 2012, Wageningen, The Netherlands. 5 pp. Available: https://library.wur.nl/ojs/index.php/AE2012/article/view/13159/12688.Soil carbon dioxide fluxes in conventional and conservation tillage corn production systems receiving poultry litter and inorganic fertilizer

- (Peer Reviewed Journal)Nyakatawa, E.Z., Mays, D.A., Way, T.R., Watts, D.B., Torbert III, H.A., Smith, D.R. 2012. Soil carbon dioxide fluxes in conventional and conservation tillage corn production systems receiving poultry litter and inorganic fertilizer. Journal of Sustainable Agriculture. 36(8):873-892.The development of alum rates to enhance the remediation of phosphorus in fluvial systems following manure spills

- (Peer Reviewed Journal)Armstrong, S.D., Smith, D.R., Owens, P.R., Joern, B.C., Huang, C. 2012. The development of alum rates to enhance the remediation of phosphorus in fluvial systems following manure spills. Journal of Environmental Monitoring. 14:292-298.Tillage and fertilizer management effects on soil atmospheric exchanges of methane and nitrous oxide in a corn production system

- (Peer Reviewed Journal)Nyakatawa, E.Z., Mays, D.A., Way, T.R., Watts, D.B., Torbert III, H.A., Smith, D.R. 2011. Tillage and fertilizer management effects on soil atmospheric exchanges of methane and nitrous oxide in a corn production system. Applied and Environmental Soil Science. Article ID 475370, 12 pages doi:10.1155/2011/475370. Available: http://www.hindawi.com/journals/aess/ 2011/475370.Evaluation of the Agro-EcoSystem-Watershed (AgES-W)model for estimating nutrient dynamics on a midwest agricultural watershed

- (Abstract Only)Ascough II, J.C., David, O., Smith, D.R., Heathman, G.C. 2011. Evaluation of the Agro-EcoSystem-Watershed (AgES-W)model for estimating nutrient dynamics on a midwest agricultural watershed. Soil and Water Conservation Society Annual Meeting,July 17-20,2011, Washington, D.C. Paper No. CTT-2.Greenhouse gas emissions from traditional and biofuels cropping systems

- (Abstract Only)Smith, D.R., Brouder, S., Bucholtz, D.L., Volenec, J., Turco, R., Ejeta, G. 2011. Greenhouse gas emissions from traditional and biofuels cropping systems [abstract]. ASA-CSSA-SSSA International Annual Meeting in conjunction with the Canadian Society of Soil Science, October 16-19, 2011, San Antonio, Texas. 2011 CDROM.Impacts of conservation buffers and grasslands on total phosphorus load using hydrologic modeling and remote sensing techniques

- (Peer Reviewed Journal)Larose, M., Heathman, G.C., Smith, D.R., Norton, L.D. 2011. Impacts of conservation buffers and grasslands on total phosphorus load using hydrologic modeling and remote sensing techniques. Catena. 86:121-129.Effect of tile effluent on nutrient concentration and retention efficiency in agricultural drainage ditches

- (Peer Reviewed Journal)Ahiablame, L.M., Chaubey, I., Smith, D.R., Engel, B.A. 2011. Effect of tile effluent on nutrient concentration and retention efficiency in agricultural drainage ditches. Agricultural Water Management. 98:1271-1279.Phosphorus and nitrogen loading depths in fluvial sediments following manure spill simulations

- (Peer Reviewed Journal)Armstrong, S.D., Smith, D.R., Owens, P.R., Joern, B.C., Leytem, A.B., Huang, C., Adeola, L. 2011. Phosphorus and nitrogen loading depths in fluvial sediments following manure spill simulations. Canadian Journal of Soil Science. 91:427-436.Effects of annual turkey litter application on surface soil quality of a Texas Blackland vertisol

- (Peer Reviewed Journal)Harmel, R.D., Haney, R.L., Smith, D.R. 2011. Effects of annual turkey litter application on surface soil quality of a Texas Blackland vertisol. Soil Science. 176(5):227-236.Nitrogen oartitioning and utilization in corn cropping systems: Rotation, N source, and N timing

- (Peer Reviewed Journal)Hernandez-Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G.E. 2011. Nitrogen oartitioning and utilization in corn cropping systems: Rotation, N source, and N timing. European Journal of Agronomy. 34:190-195.Spatially-distributed stream flow and nutrient dynamics simulations using the component-based AgroEcoSystem-Watershed (AgES-W)Model

- (Abstract Only)Ascough II, J.C., David, O., Heathman, G.C., Smith, D.R., Green, T.R., Krause, P., Kipka, H., Fink, M. 2010. Spatially-distributed stream flow and nutrient dynamics simulations using the component-based AgroEcoSystem-Watershed (AgES-W)Model. American Geophysical Union. Fall Meeting, December 13-17, 2010, San Francisco, California. Paper No. H43F-1329.Fertilizer and tillage management impacts on non-carbon-dioxide greenhouse gas emissions

- (Peer Reviewed Journal)Smith, D.R., Hernandez Ramirez, G., Armstrong, S.D., Bucholtz, D.L., Stott, D.E. 2011. Fertilizer and tillage management impacts on non-carbon-dioxide greenhouse gas emissions. Soil Science Society of America Journal. 75(3):1070-1082.Nutrient content at the sediment-water interface of tile-fed agricultural drainage ditches

- (Peer Reviewed Journal)Ahiablame, L.M., Chaubey, I., Smith, D.R. 2010. Nutrient content at the sediment-water interface of tile-fed agricultural drainage ditches. Water: A Multidiscplinary Research Journal. 2:411-428. DOI:10.2290/w2030411.Nitrous oxide emissions in corn following three decades of tillage and rotation treatments

- (Peer Reviewed Journal)Omonode, R.A., Vyn, T.J., Smith, D.R., Gal, A. 2011. Nitrous oxide emissions in corn following three decades of tillage and rotation treatments. Soil Science Society of America Journal. 75:152-163.Do Plot Studies Generate “Directionally” Correct Assessments of Field Level Phosphorus Losses?

- (Peer Reviewed Journal)Smith, D.R., Pappas, E.A. 2010. Do Plot Studies Generate “Directionally” Correct Assessments of Field Level Phosphorus Losses? Journal of Soil and Water Conservation. 65(5):289-297.Assessing Nutrient Transport Following Dredging of Agricultural Drainage Ditches

- (Peer Reviewed Journal)Smith, D.R., Huang, C. 2010. Assessing Nutrient Transport Following Dredging of Agricultural Drainage Ditches. Transactions of the American Society of Agricultural and Biological Engineers. 53:429-436.Contaminant Transport to Shallow Drainage Water in Pothole Topography

- (Proceedings)Pappas, E.A., Smith, D.R. 2010. Contaminant Transport to Shallow Drainage Water in Pothole Topography [abstract]. In: Proceedings of the American Society of Agricultural Engineers International Meeting. 21st Century Watershed Technology Conference. February 21-24, 2010, San Jose, Costa Rica.Nutrient Attenuation Under Natural Conditions in Agricultural Drainage Ditches

- (Proceedings)Ahiablame, L.M., Chaubey, I., Smith, D.R., Engel, B. 2010. Nutrient Attenuation Under Natural Conditions in Agricultural Drainage Ditches [abstract].  In: Proceedings of the 3rd International Conference on Current and Future State of Water Resources and Environment (EWRI-IITM2010). January 5-7, 2010, Chennai, India. 2010. CDROM.Impact of Time to First Rainfall Event on Greenhouse Gas Emissions Following Manure Applications

- (Peer Reviewed Journal)Smith, D.R., Owens, P.R. 2010. Impact of Time to First Rainfall Event on Greenhouse Gas Emissions Following Manure Applications. Communications in Soil Science and Plant Analysis. 41:1604-1614.Transport and Fate of Phosphorus During and After Manure Spill Simulations

- (Peer Reviewed Journal)Armstrong, S.D., Smith, D.R., Joern, B.C., Owens, P.R., Leytem, A.B., Huang, C., Adeola, L. 2010. Transport and Fate of Phosphorus During and After Manure Spill Simulations. Journal of Environmental Quality. 39:345-352.Nutrient Use Efficiency in Bioenergy Cropping Systems: Critical Research Questions

- (Proceedings)Brouder, S., Bolenec, J.J., Turco, R., Smith, D.R., Ejeta, G. 2009. Nutrient Use Efficiency in Bioenergy Cropping Systems: Critical Research Questions. In: The Proceedings of the International Plant Nutrition Colloquium XVI. Paper No. 1430.Structure Stability and Carbon Distribution in Silty Loam Soil Aggregates as Affected Tillage and Corn-Soybean Crop Rotation

- (Abstract Only)Mamedov, A.I., Norton, L.D., Huang, C., Stott, D.E., Smith, D.R., Wagner, L.E. 2009. Structure Stability and Carbon Distribution in Silty Loam Soil Aggregates as Affected Tillage and Corn-Soybean Crop Rotation [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. ASA-CSSA-SSSA Annual Meeting. November 1-5, 2009, Pittsburgh, PA. 2009 CDROM.Phosphorus Adsorption and Desorption During and After Swine Manure Spill Simulations

- (Abstract Only)Armstrong, S.D., Smith, D.R., Joern, B.C., Owens, P.R., Leytem, A.B., Huang, C., Adeola, L. 2009. Phosphorus Adsorption and Desorption During and After Swine Manure Spill Simulations [abstract]. SERA-IEG 17 Bulletin. July 28-31, 2009, Windsor, Ontario, Canada. 2009 CDROM.Do Plot Scale Studies Yield Useful Data When Assessing Field Scale Practices?

- (Abstract Only)Smith, D.R., Pappas, E.A. 2009. Do Plot Scale Studies Yield Useful Data When Assessing Field Scale Practices? [abstract]. American Society of Agronomy-Crop Science Society of America-Soil Science Society of America Annual Meeting Abstracts, Footprints in the Landscape-Sustainability through Plant and Soil Sciences, November 1-5, 2009. Pittsburgh, PA. 2009 CDROM.Structure Stability and Carbon Distribution in Silty Loam Soil Aggregates as Affected Tillage and Corn-Soybean Crop Rotation

- (Abstract Only)Mamedov, A.I., Norton, L.D., Huang, C., Stott, D.E., Smith, D.R., Wagner, L.E. 2009. Structure Stability and Carbon Distribution in Silty Loam Soil Aggregates as Affected Tillage and Corn-Soybean Crop Rotation. ASA-CSSA-SSSA Annual Meeting Abstracts, November 1-5, 2009, Pittsburg, PA.  DOI: 10.2136/AnMtgsAbsts2009.53643.Modeling the Effects of Conservation Tillage on Water Quality at the Field Scale

- (Abstract Only)Heathman, G.C., Pappas, E.A., Smith, D.R. 2009. Modeling the Effects of Conservation Tillage on Water Quality at the Field Scale [abstract]. Soil and Water Conservation Society Annual Conference, July 11-15, 2009. Dearborn, Michigan. 2009 CDROM.Manure Spills in Streams: Current Practices and Remediation Methods to Minimize Water Quality Degradation

- (Book / Chapter)Nutrient Transport in Dredged Reaches of Agricultural Drainage Ditches

- (Abstract Only)Smith, D.R., Huang, C. 2009. Nutrient Transport in Dredged Reaches of Agricultural Drainage Ditches [abstract]. Soil and Water Conservation Society and CEAP meeting, July 11-15, 2009. Dearborn, Michigan. 2009 CDROM.Assessment of In-Stream Phosphorus Dynamics in Agricultural Drainage Ditches

- (Peer Reviewed Journal)Smith, D.R. 2009. Assessment of In-Stream Phosphorus Dynamics in Agricultural Drainage Ditches. Science of the Total Environment. 407:3883-3889.Nitrogen and Phosphorus Runoff from Cropland and Pasture Fields Fertilized with Poultry Litter

- (Peer Reviewed Journal)Harmel, R.D., Smith, D.R., Haney, R.L., Dozier, M.C. 2009. Nitrogen and Phosphorus Runoff from Cropland and Pasture Fields Fertilized with Poultry Litter. Journal of Soil and Water Conservation. 64(6):400-412.Field Scale Monitoring and Modeling of Water and Chemical Transfer in the Vadose Zone

- (Abstract Only)Heathman, G.C., Pappas, E.A., Smith, D.R., Huang, C. 2009. Field Scale Monitoring and Modeling of Water and Chemical Transfer in the Vadose Zone [abstract]. European Geosciences Union General Assembly 2009, April 19-24, 2009, Vienna, Austria. 2009. Geophysical Research Abstracts, Vol. 11, EGU2009-1418, 2009.Factors Influencing Observed Tillage Impacts on Herbicide Transport

- (Abstract Only)Pappas, E.A., Huang, C., Smith, D.R. 2009. Factors Influencing Observed Tillage Impacts on Herbicide Transport [abstract]. European Geophysical Society Meeting. Geophysical Research Abstracts, Vol. 11, EGU2009-1348-2,2009Tillage and Fertilizer Effects on Soil Methane and Nitrous Oxide Emissions

- (Abstract Only)Nyakatawa, E., Mays, D., Way, T.R., Watts, D.B., Torbert Iii, H.A., Smith, D.R. 2009. Tillage and Fertilizer Effects on Soil Methane and Nitrous Oxide Emissions. In: Agronomy Abstracts, Southern Branch ASA, Madison, Wisconsin. CDROM.Greenhouse gas fluxes in an Eastern Corn Belt soil: Weather, nitrogen source and rotation

- (Peer Reviewed Journal)Hernandez-Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G., Filley, T.R. 2009. Greenhouse gas fluxes in an Eastern Corn Belt soil: Weather, nitrogen source and rotation. Journal of Environmental Quality. 38:841-854.Nitrous Oxide Production in an Eastern Corn Belt Soil: Sources and Redox Range

- (Peer Reviewed Journal)Hernandez Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G.E., Michalski, G. 2009. Nitrous Oxide Production in an Eastern Corn Belt Soil: Sources and Redox Range. Soil Science Society of America Journal. 73:1182-1191.Estimating Storm Discharge and Water Quality Data Uncertainty: A Software Tool for Monitoring and Modeling Applications

- (Peer Reviewed Journal)Harmel, R.D., Smith, D.R., King, K.W., Slade, R.M. 2009. Estimating Storm Discharge and Water Quality Data Uncertainty: A Software Tool for Monitoring and Modeling Applications. Journal of Environmental Modelling and Software. 24(7):832-842.Greenhouse Gas Fluxes in an Eastern Corn Belt Soil: Weather, N Source and Rotation

- (Peer Reviewed Journal)Hernandez Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G.E., Filley, T.R. 2009. Greenhouse Gas Fluxes in an Eastern Corn Belt Soil: Weather, Nitrogen Source and Rotation. Journal of Environmental Quality. 38:841-854.The St. Joseph River Watershed CEAP Project: Highlights of Recent Refocusing of Our Efforts

- (Abstract Only)Smith, D.R., Heathman, G.C., Pappas, E.A., Livingston, S.J., Stott, D.E., Flanagan, D.C., Huang, C. 2008. The St. Joseph River Watershed CEAP Project: Highlights of Recent Refocusing of Our Efforts. The National Sedimentation Laboratory: 50 years of soil and water research in a changing agricultural environment [abstract]. September 3-5, 2008, Oxford, MS. 2008 CDROM.Factors Influencing Nutrient Losses in the St. Joseph River Watershed

- (Abstract Only)Smith, D.R., Heathman, G.C., Livingston, S.J., Larose, M. 2008. Factors Influencing Nutrient Losses in the St. Joseph River Watershed [abstract]. The National Sedimentation Laboratory: 50 Years of Soil and Water Research in a Changing Agricultural Environment. September 3-5, 2008, Oxford, Mississippi. 2008 CDROM.A Chemical Treatment to Reduce P Desorption From Manure Exposed Fluvial Sediments

- (Abstract Only)Armstrong, S., Smith, D.R., Owens, P.R., Joern, B.C., Huang, C. 2008. A Chemical Treatment to Reduce P Desorption From Manure Exposed Fluvial Sediments [abstract]. 2008 Joint Annual Meeting Soil Science Society of Agronomy to be held in October 5-9, 2008, Houston, Texas. 2008 CDROM.Effects of Agricultural and Conservation Practices on Nutrients Losses from the St. Joseph River Watershed, Northeast Indiana

- (Abstract Only)Smith, D.R., Zuercher, B.W., Livingston, S.J., Heathman, G.C., Huang, C. 2008. Effects of Agricultural and Conservation Practices on Nutrients Losses from the St. Joseph River Watershed, Northeast Indiana [abstract]. American Society of Agronomy Annual Meeting Abstracts. October 5-9, 2008, Houston, Texas. 2008 CDROM.Environmental Database Design, Development and Application in the Cedar Creek Watershed

- (Abstract Only)Zuercher, B.W., Livingston, S.J., Bucholtz, D.L., Heathman, G.C., Pappas, E.A., Smith, D.R., Huang, C. 2008. Environmental Database Design, Development and Application in the Cedar Creek Watershed [abstract]. 2008 Joint Annual Meeting Soil Science Society of Agronomy, October 5-9, 2008, Houston, Texas. 2008 CDROM.Carbon and Nitrogen Dynamics in an Eastern Corn Belt Soil: N Source and Rotation

- (Peer Reviewed Journal)Hernandez Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G.E., Filley, T.R. 2009. Carbon and Nitrogen Dynamics in an Eastern Corn Belt Soil: N Source and Rotation. Soil Science Society of America Journal. 73(1):128-137.Nutrient Losses from Row Crop Agriculture in Indiana

- (Peer Reviewed Journal)Smith, D.R., Livingston, S.J., Zuercher, B.W., Larose, M., Heathman, G.C., Huang, C. 2008. Nutrient losses from row crop agriculture in Indiana. Journal of Soil and Water Conservation. 63:396-409.Developing an Understanding of the Complex Hydrology in the Upper Midwestern United States and Implications on Watershed Management and Planning

- (Abstract Only)Smith, D.R., Livingston, S.J., Larose, M., Heathman, G.C., Huang, C. 2008. Developing an Understanding of the Complex Hydrology in the Upper Midwestern United States and Implications on Watershed Management and Planning. In: Proceedings of the Role of Hydrology for Water Resources Management. Capri, Italy. pp. 32-33.Herbicide Losses in the Saint Joseph River Watershed: Impacts of Hydrology and Land Management

- (Abstract Only)Pappas, E.A., Smith, D.R., Huang, C. 2008. Herbicide Losses in the Saint Joseph River Watershed: Impacts of Hydrology and Land Management  [abstract]. 2008 Joint Annual Meeting Soil Science Society of Agronomy, October 5-9, 2008 Houston, Texas. 2008 CDROM.Factors Influencing Nutrient Losses from Agriculture in the St. Joseph River Watershed, Northeast Indiana

- (Abstract Only)Smith, D.R., Livingston, S.J., Heathman, G.C., Huang, C. 2008. Factors Influencing Nutrient Losses from Agriculture in the St. Joseph River Watershed, Northeast Indiana [abstract]. In: Abstracts Water Resources Association 2008 Meeting. May 14-16, 2008, Bloomington, Indiana. 2008 CDROM.Short-term and long-term impacts of dredging on nutrient transport in agricultural ditches of the Lake Erie Basin, USA

- (Abstract Only)Smith, D.R. 2008. Short-term and long-term impacts of dredging on nutrient transport in agricultural ditches of the Lake Erie Basin, USA. American Society of Limnology and Oceanography, Society of Canadian Limnolgists, North American Benthological Society. June 8-13, 2008, St. John's, Newfoundland, Canada.  2008 CDROM.Impacts of a Swine Manure Spill on Phosphorus Partitioning in a Fluvial System: Evaluation of an alternative Manure Spill Remediation Method

- (Abstract Only)Armstrong, S., Smith, D.R., Owens, P.R., Joern, B.C., Huang, C. 2008. Impacts of a Swine Manure Spill on Phosphorus Partitioning in a Fluvial System: Evaluation of an alternative Manure Spill Remediation Method. American Society of Limnology and Oceanography, Society of Canadian Limnolgists, North American Benthological Society. June 8-13, 2008, St. John's, Newfoundland, Canada.  2008 CDROM.Assessing conservation effects on water quality in the St. Joseph River Watershed

- (Proceedings)Flanagan, D.C., Huang, C., Pappas, E.A., Smith, D.R., Heathman, G.C. 2008. Assessing conservation effects on water quality in the St. Joseph River Watershed. In: Proceedings of the AgroEnviron 2008 (Sixth International Symposium AgroEnviron), April 28-May 1, 2008, Antalya, Turkey. p. 12.Building a Comprehensive Watershed-Scale Project for Assessing Conservation Effects at the St Joseph River Watershed

- (Abstract Only)Huang, C., Smith, D.R., Pappas, E.A., Heathman, G.C., Flanagan, D.C. 2008. Building a Comprehensive Watershed-Scale Project for Assessing Conservation Effects at the St Joseph River Watershed [abstract]. European Geosciences Union General Assembly Proceedings. Vienna, Austria, April 13-18, 2008. 2008 CDROM.Influence of ditch management on nutrient and pesticide fate and transport

- (Abstract Only)Smith, D.R., Pappas, E.A., Huang, C. 2008. Influence of ditch management on nutrient and pesticide fate and transport. In: European Geosciences Union General Assembly Proceedings. April 13-18, 2008, Austria Center, Vienna, Austria. 2008 CDROM.Potassium fertility and terrain attributes in a Fragiudalf drainage Catena

- (Peer Reviewed Journal)Winzeler, H.E., Owens, P.R., Joern, B.C., Camberato, J.J., Lee, B.D., Anderson, D.E., Smith, D.R. 2008. Potassium fertility and terrain attributes in a Fragiudalf drainage Catena. Soil Science Society of America Journal. 72:1311-1320.Assessing Conservation Effects on Water Quality in the St. Joseph River Watershed

- (Abstract Only)Flanagan, D.C., Huang, C., Pappas, E.A., Smith, D.R., Heathman, G.C. 2008. Assessing Conservation Effects on Water Quality in the St. Joseph River Watershed. In: Proceedings of the Agro-Environment Symposium, April 28-May 1, 2008, Antalya, Turkey. 2008 CDROM.Strategies to reduce nutrient losses from land applied animal manure

- (Peer Reviewed Journal)Armstrong, S., Smith, D.R. 2007. Strategies to reduce nutrient losses from land applied animal manure. Water Practice. 1(4). doi:10.2175/193317707X243364.Land Use Influences on Phosphorus (P) Release and Retention by Stream and Ditch Sediments

- (Abstract Only)Williams, C., Joern, B., Smith, D.R., Bowling, L., Lembi, C. 2007. Land Use Influences on Phosphorus (P) Release and Retention by Stream and Ditch Sediments. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Seasonal Influence on Phosphorus (P) Sorption Capacities in Streams and Ditches in Eagle Creek Watershed

- (Abstract Only)Williams, C., Joern, B., Smith, D.R., Bowling, L., Lembi, C. 2007. Seasonal Influence on Phosphorus (P) Sorption Capacities in Streams and Ditches in Eagle Creek Watershed. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Erosion Potential of Various Golf Course Bunker Sands

- (Abstract Only)Nemitz, J., Bigelow, C., Moeller, A., Hardebeck, G., Walker, K., Smith, D.R. 2007. Erosion Potential of Various Golf Course Bunker Sands. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Determining Critical Phosphorus Levels for Cool Season Seedlings Established on Calcareous Soil

- (Abstract Only)Nemitz, J., Bigelow, C., Camberato, J., Joern, B., Smith, D.R. 2007. Determining Critical Phosphorus Levels for Cool Season Seedlings Established on Calcareous Soil. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Nitrous Oxide Production in an Eastern Cornbelt Soil: Sources and Redox Range

- (Abstract Only)Hernandez-Ramirez, G., Brouder, S.M., Smith, D.R., Van Scoyoc, G.E., Filley, T., Michalski, G. 2007. Nitrous Oxide Production in an Eastern Cornbelt Soil: Sources and Redox Range. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.The Short Term Effects of Ditch Dredging to Nutrient Saturation onto Ditch Bed Materials

- (Abstract Only)Miller, E., Smith, D.R. 2007. The Short Term Effects of Ditch Dredging to Nutrient Saturation onto Ditch Bed Materials. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Nutrient Transport in Tile-Fed Drainage Ditches

- (Abstract Only)Smith, D.R., Armstrong, S. 2007. Nutrient Transport in Tile-Fed Drainage Ditches. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.The Effect of Time after Ditch Dredging on Phosphorus Transport

- (Abstract Only)Armstrong, S., Smith, D.R. 2007. The Effect of Time after Ditch Dredging on Phosphorus Transport. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Impacts of a Swine Manure Spill on Fluvial Sediments: Evaluation of an alternative Manure Spill Remediation Method

- (Abstract Only)Armstrong, S., Smith, D.R., Owens, P., Joern, B., Huang, C. 2007. Impacts of a Swine Manure Spill on Fluvial Sediments: Evaluation of an alternative Manure Spill Remediation Method. American Society of Agronomy Annual Meeting Abstracts. November 4-8, 2007, New Orleans, LA. 2007 CDROM.Variations in Stream Water and Sediment Phosphorus among Select Ozark Catchments

- (Peer Reviewed Journal)Haggard, B.E., Smith, D.R., Brye, K.R. 2007. Variations in Stream Water and Sediment Phosphorus among Select Ozark Catchments. Journal of Environmental Quality. 36:1725-1734.Effect of Dredging an Agricultural Drainage Ditch on Water Column Herbicide Concentration, as Predicted by Fluvarium Techniques

- (Peer Reviewed Journal)Pappas, E.A., Smith, D.R. 2007. Effect of Dredging an Agricultural Drainage Ditch on Water Column Herbicide Concentration, as Predicted by Fluvarium Techniques. Journal of Soil and Water Conservation. 62(4):262-268.Phosphorus transport from row crop agriculture in the Midwestern U.S.: Problems with scaling up from small plot to watersheds

- (Proceedings)Smith, D.R., Pappas, E.A., Livingston, S.J., Flanagan, D.C., Huang, C. 2007. Phosphorus transport from row crop agriculture in the Midwestern U.S.: Problems with scaling up from small plot to watersheds. In: (G.Heckrath, G.H. Rubaek, and B. Kronvang, Eds.) Diffuse Phosphorus Loss: Risk Assessment, Mitigation Options and Ecological Effects in River Basins. Proceedings of the 5th International Phosphorus Workshop(IPW5). Silkeborg, Denmark. pp. 181-814.Comparison of field measured soil adsorption field loading rates and loading rates estimated from soil morphological properties

- (Peer Reviewed Journal)Hart, K.S., Lee, B.D., Schoeneberger, P.S., Franzmeier, D.P., Owens, P.R., Smith, D.R. 2008. Comparison of field measured soil adsorption field loading rates and loading rates estimated from soil morphological properties. Journal of Hydrologic Engineering. 13(8):665-670.IMPERVIOUS SURFACE IMPACTS TO RUNOFF AND SEDIMENT DISCHARGE UNDER LABORATORY RAINFALL SIMULATION

- (Peer Reviewed Journal)Pappas, E.A., Smith, D.R., Huang, C., Shuster, W.D., Bonta, J.V. 2007. Impervious surface impacts to runoff and sediment discharge under laboratory rainfall simulation. Catena. 72:146-152.Effect of dredging on the fate of nutrients in drainage ditches

- (Abstract Only)Smith, D.R. 2007. Effect of dredging on the fate of nutrients in drainage ditches. Soil and Water Conservation Society 2007 Annual Conference. July 21-25, 2007, Tampa, FL,   2007 CDROM.Nutrient Losses from Row Crop Agriculture in Indiana

- (Abstract Only)Smith, D.R., Huang, C. 2007. Nutrient Losses from Row Crop Agriculture in Indiana. Soil and Water Conservation Society 2007 Annual Conference. July 21-25, 2007, Tampa, FL. 2007 CDROM.Above ground responses of three cool-season lawn species to varying annual nitrogen rates and application timings

- (Peer Reviewed Journal)Walker, K.S., Bigelow, C.A., Smith, D.R., Van Scoyoc, G.E., Reicher, Z.J. 2007. Above ground responses of three cool-season lawn species to varying annual nitrogen rates and application timings. Crop Science. 47:1225-1236.Effect of ditch dredging on the fate of nutrients in deep drainage ditches of the Midwestern United States

- (Peer Reviewed Journal)Smith, D.R., Pappas, E.A. 2007. Effect of ditch dredging on the fate of nutrients in deep drainage ditches of the Midwestern United States. Journal of Soil and Water Conservation. 62(4):258-261.Soil carbon dioxide and methane fluxes from long-term tillage systems in continuous corn and corn-soybean rotations

- (Peer Reviewed Journal)Omonode, R., Vyn, T., Smith, D.R., Hegymegi, P., Gal, A. 2007. Soil carbon dioxide and methane fluxes from long-term tillage systems in continuous corn and corn-soybean rotations. Soil and Tillage Research. 95:182-195.Cumulative Ammonia Quantification from Litter with Instantaneous Flux Estimates

- (Abstract Only)Miles, D.M., Rowe, D.E., Owens, P.R., Moore Jr., P.A., Smith, D.R. 2007. Cumulative ammonia quantification from litter with instantaneous flux estimates [abstract]. International Poultry Scientific Forum.  p. 54.Strategies to Reduce Nutrient Losses from Land Applied Animal Manure

- (Abstract Only)Smith, D.R. 2007. Strategies to Reduce Nutrient Losses from Land Applied Animal Manure. Water Environment Federation. April 15-18, 2007. Denver, CO. CDROM.GHG emissions from corn-soybean rotations on a Mollisol

- (Abstract Only)Stott, D.E., Smith, D.R., Bucholtz, D.L. 2007. GHG emissions from corn-soybean rotations on a mollisol. 4th USDA Greenhouse Gas Symposium, February 5-8, 2007, Baltimore, Maryland. 2007 CDROM.Effects of Tilling No-Till Soil on Losses of Atrazine and Glyphosate to Runoff Water under Variable Intensity Simulated Rainfall

- (Peer Reviewed Journal)Pappas, E.A., Patterson, J., Smith, D.R., Huang, C. 2007. Effects of Tilling No-Till Soil on Losses of Atrazine and Glyphosate to Runoff Water under Variable Intensity Simulated Rainfall. Soil and Tillage Research. 95(1-2):19-26.How does dredging of drainage ditches affect contaminant transport?

- (Abstract Only)Smith, D.R., Warnemuende, E.A., Huang, C. 2006. How does dredging of drainage ditches affect contaminant transport?. In: (D. Wichelns, ed.) Proceedings of the Nonpoint Pollution-Methods, Policies, Programs & Management Conference Proceedings. Rivers Institute at Hanover College, Hanover, IN. November 28-30, 2006. pp. 350-358.Continual Evaluation of Ditch Sediment and Phosphorus Dynamics in tile fed Drainage Ditches in the St. Joseph Watershed

- (Abstract Only)Armstrong, S., Smith, D.R. 2006. Continual Evaluation of Ditch Sediment and Phosphorus Dynamics in tile fed Drainage Ditches in the St. Joseph Watershed. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006. Indianapolis, IN. CDROM.Monitoring Surface Drainage and Water Quality from Closed Depressions

- (Abstract Only)Livingston, S.J., Smith, D.R., Heathman, G.C., Huang, C. 2006. Monitoring Surface Drainage and Water Quality from Closed Depressions [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006, Indianapolis, IN.  2006 CDROM.Scaling of nutrient transport in surface runoff: From plot to watershed

- (Abstract Only)Smith, D.R., Warnemuende, E.A., Huang, C., Flanagan, D.C. 2006. Scaling of nutrient transport in surface runoff: From plot to watershed [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006, Indianapolis, IN.  2006 CDROM.Trace gas emissions from corn-soybean rotations on a Mollisol

- (Abstract Only)Stott, D.E., Smith, D.R., Bucholtz, D.L. 2006. Trace gas emissions from corn-soybean rotations on a Mollisol. Soil Science Society of America Annual Meeting, November 12-16, 2006, Indianapolis, IN.  2006 CDROM.Nutrient Losses from Manure and Fertilizer Applications as Impacted by Time to First Runoff Event

- (Peer Reviewed Journal)Smith, D.R., Owens, P.R., Leytem, A.B., Pappas, E.A. 2007. Nutrient Losses from Manure and Fertilizer Applications as Impacted by Time to First Runoff Event. Environmental Pollution. 14:131-137.Stream Water and Sediment Phosphorus Equilibrium Concentrations in Ozark Streams

- (Abstract Only)Haggard, B., Brye, K., Smith, D.R. 2006. Stream Water and Sediment Phosphorus Equilibrium Concentrations in Ozark Streams. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006. Indianapolis, IN. CDROM.Greenhouse Gas Fluxes in an Eastern Cornbelt Soil: Weather, Nitrogen Source and Rotation

- (Abstract Only)Ramirez, G.H., Brouder, S.M., Smith, D.R., Vanscoyoy, G.E., Filley, T.R. 2006. Greenhouse Gas Fluxes in an Eastern Cornbelt Soil: Weather, Nitrogen Source and Rotation. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006. Indianapolis, IN. CDROM.Are Stream and Ditch P Concentrations Related to Sediment P Status and Land Use?

- (Abstract Only)Williams, C., Smith, D.R., Joern, B. 2006. Are Stream and Ditch P Concentrations Related to Sediment P Status and Land Use?. ASA-CSSA-SSSA Annual Meeting Abstracts. November 12-16, 2006. Indianapolis, IN.  CDROM.THE INFLUENCE OF MANURE PHYTIC ACID ON PHOSPHORUS SOLUBILITY IN CALCAREOUS SOILS

- (Peer Reviewed Journal)Leytem, A.B., Smith, D.R., Applegate, T.J., Thacker, P.A. 2006. The influence of manure phytic acid on phosphorus solubility in calcareous soils. Soil Science Society of America Journal. 70(5):1629-1638.IMPROVEMENT OF METALS AND PHOSPHORUS ANALYSIS IN WATER SAMPLES BY ICP-OES RF POWER AND NEBULIZER GAS FLOW RATE MODIFICATION

- (Peer Reviewed Journal)Decampos, A.B., Rocha, C., Smith, D.R., Huang, C. 2007. Improvement of metals and phosphorus analysis in water samples by ICP-OES RF power and nebulizer gas flow rate modification. Communications in Soil Science and Plant Analysis. 38:1179-1191.Effect of Soil Condition and Amendments Application on Phosphorous Loss

- (Abstract Only)Mamedov, A., Huang, C., Norton, L.D., Smith, D.R. 2006. Effect of Soil Condition and Amendments Application on Phosphorous Loss. 18th World Congress of Soil Science. July 9-15, 2006. Philadelphia, PA. CDROM.SIMULATED RAINFALL IMPACT ON CARBON DIOXIDE EMISSIONS FROM CORN AND SOYBEAN CROPPING SYSTEMS ON A MOLLISOL

- (Abstract Only)Kamal, R., Stott, D.E., Smith, D.R., Bucholtz, D.L. 2006. Simulated rainfall impact on carbon dioxide emissions from corn and soybean cropping systems on a mollisol. World Congress of Soil Science. 2006 CDROM.SEDIMENT PHOSPHORUS DYNAMICS IN TILE-FED DRAINAGE DITCHES

- (Proceedings)Smith, D.R., Warnemuende, E.A., Haggard, B.E., Huang, C. 2006. Sediment phosphorus dynamics in tile-fed drainage ditches. In: International Symposium on Sediment Dynamics and the Hydromorphology of Fluvial Systems Proceedings. Sediment Dynamics and the Hydromorphology of Fluvial Systems, July 3-7, 2006, Dundee, UK, IAHS Publ. 306, 2006.Soil carbon dioxide and methane fluxes from long-term tillage systems in continuous corn and corn-soybean rotations.

- (Abstract Only)Omonode, R., Gal, A., Smith, D.R., Vyn, T. 2006. Soil carbon dioxide and methane fluxes from long-term tillage systems in continuous corn and corn-soybean rotations. 18th World Congress of Soil Science. July 9-15, 2006. Philadelphia, PA. 2006 CDROM.Anthropogenic Contaminants in the Drinking Water Supply for Fort Wayne, Indiana, USA

- (Proceedings)Smith, D.R., Warnemuende, E.A., Gillespie, R., Huang, C. 2006. Anthropogenic Contaminants in the Drinking Water Supply for Fort Wayne, Indiana, USA. Bulletin of the North American Benthological Society Bulletin. 23(1):308-309.How does the First Year Tilling a Long-Term No-Tillage Field Impact Soluble Nutrient Losses in Runoff?

- (Peer Reviewed Journal)Smith, D.R., Pappas, E.A., Huang, C., Heathman, G.C. 2007. How does the First Year Tilling a Long-Term No-Tillage Field Impact Soluble Nutrient Losses in Runoff?. Soil and Tillage Research. 95:11-18.EFFECT OF SURFACE APPLICATION OF GYPSUM AND DRY PAM ON NUTRIENT LOSS

- (Abstract Only)Mamedov, A., Huang, C., Norton, L.D., Smith, D.R. 2006. Effect of surface application of gypsum and dry PAM on nutrient loss. International Soil Meeting. May 22-26, 2006, Sanliurfa, Turkey. 2006 CDROM.DREDGING OF DRAINAGE DITCHES INCREASES SHORT-TERM TRANSPORT OF SOLUBLE PHOSPHORUS

- (Peer Reviewed Journal)Smith, D.R., Warnemuende, E.A., Haggard, B.E., Huang, C. 2006. Dredging of drainage ditches increases short-term of soluble phosphorus. Journal of Environmental Quality. 35:611-616.CHANGES IN SEDIMENT - WATER COLUMN PHOSPHORUS INTERACTIONS FOLLOWING SEDIMENT DISTURBANCE

- (Peer Reviewed Journal)Smith, D.R., Warnemuende, E.A., Haggard, B.E., Huang, C. 2006. Changes in sediment - water column phosphorus interactions following sediment disturbance. Ecological Engineering. Vol. 27, Issue 1, 31 August 2006, Pp. 71-78.IN-VESSEL, MECHANICAL ROTATING DRUM COMPOSTING OF INSTITUTIONAL FEED RESIDUALS

- (Peer Reviewed Journal)Smith, D.R., Cawthon, D.L., Sloan, J.J., Freeman, T.M. 2006. In-vessel, mechanical rotating drum composting of institutional feed residuals. Compost Science and Utilization. 14(2):155-161.LAND MANAGEMENT IMPACTS ON INTERNAL P LOADING IN DITCHES AND STREAMS

- (Abstract Only)Williams, C., Smith, D.R., Joern, B. 2005. Land management impacts on internal P loading in ditches and streams. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.TILLAGE AND HERBICIDE IMPACTS TO RUNOFF WATER QUALITY

- (Abstract Only)Patterson, J., Warnemuende, E.A., Smith, D.R., Huang, C. 2005. Tillage and herbicide impacts to runoff water quality. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.IMPACT OF PRE-PLANT PHOSPHORUS AND POTASSIUM ON TURF TYPE TALL FESCUE ESTABLISHMENT

- (Proceedings)Hardebeck, G., Bigelow, C., Walker, K., Smith, D.R. 2005. Impact of pre-plant phosphorus and potassium on turf type tall fescue establishment. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.KENTUCKY BLUEGRASS RESPONSE TO THREE AUTUMN APPLIED UREA SOURCES

- (Proceedings)Bigelow, C.A., Hardebeck, G., Walker, K., Smith, D.R. 2005. Kentucky bluegrass response to three autumn applied urea sources. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.EFFECT OF POULTRY LITTER TO WATER RATIOS ON EXTRACTABLE PHOSPHORUS CONTENT AND ITS RELATION WITH RUNOFF PHOSPHORUS CONCENTRATIONS

- (Peer Reviewed Journal)Haggard, B.E., Vadas, P.A., Smith, D.R., Delaune, P., Moore Jr., P.A. 2005. Effect of poultry litter to water ratios on extractable phosphorus content and its relation with runoff phosphorus concentrations. Biosystems Engineering. 92(3):409-417.POTENTIAL IMPACTS OF PHYTASE IN SWINE DIETS ON AIR, WATER AND SOIL QUALITY

- (Proceedings)Smith, D.R., Moore Jr, P.A. 2005. Potential impacts of phytase in swine diets on air, water and soil quality. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM.SOIL EXTRACTABLE PHOSPHORUS CHANGES WITH TIME AFTER APPLICATION OF FERTILIZER: 2. MANURE FROM SWINE FED MODIFIED DIETS

- (Peer Reviewed Journal)Smith, D.R., Moore Jr, P.A. 2005. Soil extractable phosphorus changes with time after application of fertilizer: 2. manure from swine fed modified diets. Soil Science. 170(8):640-651.SOIL EXTRACTABLE PHOSPHORUS CHANGES WITH TIME AFTER APPLICATION OF FERTILIZER: 1. LITTER FROM POULTRY FED MODIFIED DIETS

- (Peer Reviewed Journal)Smith, D.R., Moore Jr, P.A., Miles, D.M. 2005. Soil extractable phosphorus changes with time after application of fertilizer: 1. litter from poultry fed modified diets. Soil Science. 170(7):530-542.IMPACTS OF IMPERVIOUS SURFACE ON WATERSHED HYDROLOGY: A REVIEW

- (Peer Reviewed Journal)Shuster, W.D., Bonta, J.V., Thurston, H., Warnemuende, E.A., Smith, D.R. 2005. Impacts of impervious surface on watershed hydrology: a review. Urban Water Journal. 2(4):263-275.NUTRIENT AND B17-ESTRADIOL LOSS IN RUNOFF WATER FROM VARIOUS POULTRY LITTERS.

- (Peer Reviewed Journal)Haggard, B.E., Delaune, P.B., Smith, D.R., Moore Jr., P.A. 2005. Nutrient and B17-estradiol loss in runoff water from various poultry litters. Journal of the American Water Resources Association. Paper No. 03178. p. 245-256.THE FUTURE OF NUTRIENT MANAGEMENT

- (Other)Smith, D.R., Joern, B. 2004. The future of nutrient management. Meeting Abstract.WATERSHED SCALE EVALUATION OF CONSERVATION PRACTICE EFFECTS

- (Proceedings)Warnemuende, E.A., Huang, C., Smith, D.R., Flanagan, D.C., Stott, D.E. 2004. Watershed scale evaluation of conservation practice effects. International Soil Conservation Organization Conference Abstracts. July 4-9, 2004, Brisbane, Australia. 2004. CDROM.PHOSPHORUS TRANSPORT IN TILE FED DRAINAGE DITCHES

- (Proceedings)Smith, D.R. 2004. Phosphorus transport in tile fed drainage ditches. In: ASA-CSSA-SSSA Proceedings. October 31-November 4, 2004. Seattle, Washington. 2004 CDROM.IMPACT OF TIME TO FIRST RUNOFF EVENT ON NUTRIENT RUNOFF AND GREENHOUSE GAS EMISSIONS FROM MANURE APPLICATIONS

- (Proceedings)Smith, D.R., Warnemuende, E.A., Owens, P.R. 2004. Impact of time to first runoff event on nutrient runoff and greenhouse gas emissions from manure applications. In: ASA-CSSA-SSSA Proceedings, October 31-November 4, 2004, Seattle, Washington. 2004 CDROM.TREATING SWINE MANURE WITH ALUMINUM CHLORIDE

- (Research Notes)Smith, D.R. 2005. Treating swine manure with aluminum chloride. In: Walker, F., Russell, W., Dagnan, G., Dalton, A., Editors. Phosphorus Best Management Practices: Protecting Water Qualtiy. USDA-NRCS Fact Sheet. Available: http://www.sera17.ext.vt.edu/sera_17_publications.DIETARY PHYTASE TO REDUCE PHOSPHORUS LOSSES FROM ANIMAL MANURE

- (Research Notes)Smith, D.R., Joern, B.C. 2005. Dietary phytase to reduce phosphorus losses from animal manure. In: Walker, F., Russell, W., Dagnan, G., Dalton, A., Editors. Phosphorus Best Management Practices: Protecting Water Qualtiy. USDA-NRCS Fact Sheet. Available: http://www.sera17.ext.vt.edu/sera_17_publications.htm.INVESTIGATING ENVIRONMENTAL CHANGES IN EXPERIMENTAL AGRICULTURAL WATERSHEDS IN TRANSITION TO SUBURBAN MANAGEMENT

- (Proceedings)Warnemuende, E.A., Bonta, J.V., Shuster, W., Smith, D.R., Cabezas, H. 2004. Investigating environmental changes in experimental agricultural watersheds in transition to suburban management. In: ASA-CSSA-SSSA Proceedings, October 31-November 4, 2004, Seattle, WA. 2004 CDROM.LAND USE CHANGE IMPACTS ON HYDROLOGY AND EROSION AT THE URBAN INTERFACE

- (Proceedings)Warnemuende, E.A., Smith, D.R., Bonta, J.V., Huang, C., Shuster, W. 2004. Land use change impacts on hydrology and erosion at the urban interface. In: ASA-CSSA-SSSA Proceedings, October 31-November 4, 2004, Seattle, Washngton. 2004 CDROM.SEDIMENT PHOSPHORUS DYNAMICS FOR THREE TILE FED DRAINAGE DITCHES IN NORTHEAST INDIANA

- (Peer Reviewed Journal)Smith, D.R., Haggard, B.E., Warnemuende, E.A., Huang, C. 2005. Sediment phosphorus dynamics for three tile fed drainage ditches in northeast Indiana. Agricultural Water Management.  71(1):19-32.DECREASING PHOSPHOROUS RUNOFF LOSSES FROM LAND APPLIED POULTRY LITTER WITH DIETARY MODIFICATIONS AND ALUM ADDITION

- (Peer Reviewed Journal)Smith, D.R., Moore Jr, P.A., Miles, D.M., Haggard, B.E., Daniel, T.C. 2004. Decreasing phosphorous runoff losses from land applied poultry litter with dietary modifications and alum addition. Journal of Environmental Quality. 33:2210-2216.TREATING DITCH SEDIMENTS TO REDUCE DOWNSTREAM PHOSPHORUS DELIVERY

- (Proceedings)Smith, D.R., Warnemuende, E.A., Huang, C. 2004. Treating ditch sediments to reduce downstream phosphorus delivery. In: (W.J. Chadron and G.F. Koopmans eds.). 4th International Phosphorus Workshop: Critial evaluation of options for reducing phosphorus loss from agriculture. Wageningen, The Netherlands. August 16-19, 2004. p. 69.EROSION AND PHOSPHORUS MOBILITY FROM AGRICULTURAL CATCHMENTS

- (Proceedings)Cox, J.W., Smith, D.R. 2004. Erosion and phosphorus mobility from agricultural catchments. In: (W.J. Chadron and G.F. Koopmans eds.) 4th International Phosphorus Workshop: Critical evaluation of options for reducing phosphorus loss from agriculture. Wageningen, The Netherlands. August 16-19, 2004. p. 13.GREENHOUSE GAS EMISSIONS IMMEDIATELY FOLLOWING SIMULATED RAINFALL ON A MOLLISOL

- (Abstract Only)Kamal, R., Stott, D.E., Smith, D.R., Bucholtz, D.L. 2004. Greenhouse gas emissions immediately following simulated rainfall on a mollisol. Soil Science Society of America Annual Meeting. 2004 CDROM.GREENHOUSE GAS EMISSIONS FROM VARYING TILLAGE PRACTICES UNDER CORN-SOYBEAN ROTATIONS

- (Abstract Only)Stott, D.E., Smith, D.R., Bucholtz, D.L. 2004. Greenhouse gas emissions from varying tillage practices under corn-soybean rotations. Soil Science Society of America Annual Meeting. 2004 CDROM.REDUCING PHOSPHORUS RUNOFF FROM SWINE MANURE WITH DIETARY PHYTASE AND ALUMINUM CHLORIDE.

- (Peer Reviewed Journal)Smith, D.R., Moore Jr, P.A., Maxwell, C.V., Haggard, B.E., Daniel, T.C. 2004. Reducing phosphorus runoff from swine manure with dietary phytase and aluminum chloride. Journal of Environmental Quality. 33:1048-1054.MINERAL COMPOSITION OF POULTRY LITTER RESULTING FROM DIETARY HAP CORN AND PHYTASE ENZYME WITH ALUM LITTER TREATMENT

- (Abstract Only)Miles, D.M., Rowe, D.E., Moore, P.A., Rice, D.W., Smith, D.R. 2003. Mineral composition of poultry litter resulting from dietary HAP corn and phytase enzyme with alum litter treatment [abstract]. Agronomy Abstracts.  CD-ROM.EFFECTS OF MANURE AMENDMENTS AND DIET TREATMENTS ON SOIL TEST P WITH TIME

- (Abstract Only)SMITH, D.R., MOORE JR, P.A., MILES, D.M., MAXWELL, C.V. EFFECTS OF MANURE AMENDMENTS AND DIET TREATMENTS ON SOIL TEST P WITH TIME. SOIL SCIENCE SOCIETY OF AMERICA ANNUAL MEETING. 2003.PHOSPHORUS RUNOFF AND AMMONIA VOLATILIZATION FROM POULTRY AND SWINE FED PHYTASE DIETS

- (Abstract Only)SMITH, D.R., MOORE JR, P.A., MILES, D.M., MAXWELL, C.V., DELAUNE, P.B., DANIEL, T.C., HAGGARD, B.E. PHOSPHORUS RUNOFF AND AMMONIA VOLATILIZATION FROM POULTRY AND SWINE FED PHYTASE DIETS. SOIL SCIENCE SOCIETY OF AMERICA ANNUAL MEETING. 2003.NUTRIENT PROFILES IN SOILS FROM LONG-TERM TILLAGE PLOTS

- (Abstract Only)Smith,  D.R., Stott, D.E., Warnemuende, E.A., Norton, L.D. Nutrient profiles in soils from long-term tillage  plots. CD-ROM.  Denver, CO: American Society of Agronomy Annual Meetings. 2003.METHODOLOGY FOR DETERMINING EFFECTS OF EXTENT AND GEOMETRY OF IMPERVIOUS SURFACE ON HYDROLOGIC BALANCE

- (Proceedings)WARNEMUENDE, E.A., SHUSTER, W., SMITH, D.R., BONTA, J.V. METHODOLOGY FOR DETERMINING EFFECTS OF EXTENT AND GEOMETRY OF IMPERVIOUS SURFACE ON HYDROLOGIC BALANCE. FIRST INTERAGENCY CONFERENCE ON RESEARCH IN THE WATERSHEDS. 2003. p. 89-94.QUANTIFICATION OF URBANIZATION IN EXPERIMENTAL WATERSHEDS

- (Proceedings)Bonta, J.V., Shuster, W., Warnemuende, E.A., Thurston, H., Smith, D.R., Goss, M., Cabezas, H. Quantification of urbanization in experimental watersheds. Proceedings of The First Interagency Conference on Research in the Watersheds. Benson, AZ. Oct. 27-30, 2003. p. 355-363.IMPACT OF ALUMINUM CHLORIDE AND DIETARY PHYTASE ON RELATIVE AMMONIA LOSSES FROM SWINE MANURE

- (Peer Reviewed Journal)Smith, D.R., Moore Jr, P.A., Haggard, B.E., Maxwell, C.V., Daniel, T.C., Vandevander, K., Davis, M.E. 2004. Impact of aluminum chloride and dietary phytase on relative ammonia losses from swine manure. Journal of Animal Science. 82:605-611.RAINFALL SIMULATION METHODS TO INVESTIGATE HYDROLOGIC IMPERVIOUS SURFACE EFFECTS

- (Proceedings)Warnemuende, E.A., Shuster, W., Bonta, J.V., Smith, D.R. 2003. Rainfall simulation methods to investigate hydrologic impervious surface effects. In: ASAE Annual International Meeting Proceedings. July 27-30, 2003, Las Vegas, Nevada. 2003 CDROM.TOTAL AND WATER-SOLUBLE PHOSPHORUS IN BROILER LITTER OVER THREE FLOCKS WITH LITTER TREATMENT AND DIETARY INCLUSION OF HIGH AVAILABLE PHOSPHORUS CORN AND PHYTASE SPPLEMENTATION

- (Peer Reviewed Journal)Miles, D.M., Moore, P.A., Smith, D.R., Rice, D.W., Stillborn, H.L., Rowe, D.E., Lott, B.D., Branton, S.L., Simmons, J.D. 2003. Total and water-soluble phosphorus in broiler litter over three flocks with litter treatment and dietary inclusion of high available phosphorus corn and phytase supplementation. Poultry Science. 82:1544-1549.NUTRIENT AND B17-ESTRADIOL LOSS IN RUNOFF WATER FROM VARIOUS POULTRY LITTERS.

- (Proceedings)Haggard, B.E., Moore Jr, P.A., Delaune, P.B., Smith, D.R. 2003. Nutrient and b17-estradiol loss in runoff water from various poultry litters. American Water Resources Association Conference Proceedings. CD-ROM, TPS-03-01. Kansas City, MO.SURFACE WATER QUALITY PROTECTION FOR CONCENTRATED ANIMAL FEEDING OPERATIONS

- (Book / Chapter)Smith, D.R., Moore Jr, P.A. 2003. Surface water quality protection for concentrated animal feeding operations. Encyclopedia of Water Science. Marcel Dekker, Inc., New York. pp 965-968.IMPACTS OF URBANIZATION ON WATERSHED HYDROLOGIC FUNCTION

- (Abstract Only)Bonta, J.V., Shuster, W.D., Warnemuende, E.A., Thurston, H., Smith, D.R., Goss, M., Cabezas, H. 2003. Impacts of urbanization on watershed hydrologic function [abstract]. First Interagency Conference on Research in the Watersheds, Oct. 28-30, 2003, Benson, AZ.
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