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                    U.S. DEPARTMENT OF AGRICULTURE
 Soil and Water Management Research: Bushland, TX
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ARS Home Plains Area Bushland, Texas Conservation and Production Research Laboratory Soil and Water Management Research People & Locations







Robert C Schwartz

                                                                (PhD)
                        Soil and Water Management Research

                        




                        
                        Soil Scientist
                        Phone: (806) 356-5762
                        
                        
                        Fax: (806) 356-5750(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsDryland and Irrigated Crop Management Under Limited Water Availability and Drought
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441575Optimized Allocation of Limited Amount of Irrigation Water among Simultaneous Annual Crops at Farm Level (ORDILS)
                                                    Non-Funded Cooperative Agreement
                                                                    (N)Accession Number: 439235Collaborative Research and Outreach to Facilitate Cotton Production in the Thermo-limited Regions of the Southern Ogallala Aquifer - Phase 2 TAMU
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 444354Collaborative Research and Outreach to Facilitate Cotton Production in Thermo-limited Regions of the Southern Ogallala Aquifer Region - KSU
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 439081Collaborative Research and Outreach to Facilitate Cotton Production in Thermo-limited Regions of the Southern Ogallala Aquifer Region- Texas A&M
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 439126Collaborative Research and Outreach to Facilitate Cotton Production in Thermo-limited Regions of the Southern Ogallala Aquifer Region- Texas Tech
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 439128Collaborative Research and Outreach to Facilitate Cotton Production in Thermo-limited Regions of the Southern Ogallala Aquifer Region- WTAMU
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 439129**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Irrigation response, water use, and lint yield of upland cotton cultivars
                                                        

- (Peer Reviewed Journal)Schwartz, R.C., Witt, T.W., Ulloa, M., Colaizzi, P.D., Baumhardt, R.L. 2024. Irrigation response, water use, and lint yield of upland cotton cultivars. Journal of the ASABE. 67(2):421-437. https://doi.org/10.13031/ja.15868.Field evaluation of conventional and downhole TDR soil water sensors for irrigation scheduling in a clay loam soil

- (Abstract Only)Marek, G.W., Evett, S.R., Marek, T.H., Porter, D.O., Schwartz, R.C. 2023. Field evaluation of conventional and downhole TDR soil water sensors for irrigation scheduling in a clay loam soil [abstract]. 2023 Texas Plant Protection Conference, December 5-6, 2023, Bryan, Texas.Field evaluation of conventional and downhole TDR soil water sensors for irrigation scheduling in a clay loam soil
                                                        

- (Peer Reviewed Journal)Marek, G.W., Evett, S.R., Marek, T.H., Porter, D.O., Schwartz, R.C. 2023. Field evaluation of conventional and downhole TDR soil water sensors for irrigation scheduling in a clay loam soil. Applied Engineering in Agriculture. 39(5):495-507. https://doi.org/10.13031/aea.15574.Sustainable semiarid production of dryland and deficit irrigated forage sorghum in relation to water conservation, yield, and water productivity

- (Abstract Only)Center pivot water allocation strategies under limited irrigation

- (Abstract Only)Schwartz, R.C., Dominguez, A., Pardo, J., Klopp, H.W., Baker, T.J., Parker, D., Bell, J.M., Guerrero, B. 2023. Center pivot water allocation strategies under limited irrigation [abstract]. 2023 Universities Council on Water Resources (UCOWR)/National Institutes for Water Resources (NIWR) Annual Water Resources Conference, June 13-15, 2023, Fort Collins, Colorado. Session 34. Paper No. 4.Towards improved TDR soil water sensing for optimizing irrigation water management

- (Abstract Only)Schwartz, R.C., Klopp, H.W., Dominguez, A. 2023. Towards improved TDR soil water sensing for optimizing irrigation water management [abstract]. EGU General Assembly 2023, April 24-28, 2023, Vienna, Austria. Paper No. EGU 23-3383.Optimized regulated deficit irrigation for limited volumes of irrigation water and simultaneous crops, the ORDILS methodology
                                                        

- (Abstract Only)Dominguez, A., Schwartz, R.C., Martinez-Lopez, H., Pardo, J. 2023. Optimized regulated deficit irrigation for limited volumes of irrigation water and simultaneous crops, the ORDILS methodology [abstract]. EGU General Assembly 2023, April 23-28, 2023, Vienna, Austria & Online. Paper No. EGU23-8516. https://doi.org/10.5194/egusphere-egu23-8516.Soil water conservation for dryland farming
                                                        

- (Peer Reviewed Journal)Unger, P.W., Schwartz, R.C., Baumhardt, R.L., Xue, Q. 2023. Soil water conservation for dryland farming. Advances in Soil Science. 1-28. https://doi.org/10.1201/b22954.Adaptation of MOPECO for water management decisions in the Texas High Plains

- (Proceedings)Schwartz, R.C., Dominguez, A., Pardo, J., Baker, T.J., Klopp, H.W., Parker, D., Bell, J.M., Guerrero, B., Baumhardt, R.L., Colaizzi, P.D. 2022. Adaptation of MOPECO for water management decisions in the Texas High Plains. In: Proceedings for the International Conference for Dessemination of PRIMA Project Results and Interregional Conference of CIGR Section 1, September 5, 2022, in Albacete, Spain. Virtual.Soil water extractable organic matter under long-term dryland cropping systems on the Texas High Plains
                                                        

- (Peer Reviewed Journal)Waldrip, H., Schwartz, R.C., He, Z., Todd, R.W., Baumhardt, R.L., Zhang, M., Parker, D.B., Brauer, D.K., Min, B. 2022. Soil water extractable organic matter under long-term dryland cropping systems on the Texas High Plains. Soil Science Society of America Journal. 1-15. https://doi.org/10.1002/saj2.20432.Response of maize hybrids under limited irrigation capacities: Crop water use
                                                        

- (Peer Reviewed Journal)Schwartz, R.C., Bell, J.M., Colaizzi, P.D., Baumhardt, R.L., Hiltbrunner, B.A. 2022. Response of maize hybrids under limited irrigation capacities: Crop water use. Agronomy Journal. 114:1324-1337. https://doi.org/10.1002/agj2.21011.Response of maize hybrids under limited irrigation capacities: yield and yield components
                                                        

- (Peer Reviewed Journal)Schwartz, R.C., Bell, J., Baumhardt, R.L., Colaizzi, P.D., Hiltbrunner, B.A., Witt, T.W., Brauer, D.K. 2022. Response of maize hybrids under limited irrigation capacities: yield and yield components. Agronomy Journal. 114:1338-1352. https://doi.org/10.1002/agj2.21013.Center pivot irrigation capacity effects on maize yield and profitability in the Texas High Plains
                                                        

- (Peer Reviewed Journal)Dominguez, A., Schwartz, R.C., Pardo, J.J., Guerrero, B., Bell, J.M., Colaizzi, P.D., Baumhardt, R.L. 2021. Center pivot irrigation capacity effects on maize yield and profitability in the Texas High Plains. Agricultural Water Management. 261. Article 107335. https://doi.org/10.1016/j.agwat.2021.107335.Effect of the optimized regulated deficit irrigation methodology on water use in garlic
                                                        

- (Peer Reviewed Journal)Lellis, B.C., Martinez-Romero, A., Schwartz, R.C., Pardo, J.J., Tarjuelo, J.M., Dominguez, A. 2021. Effect of the optimized regulated deficit irrigation methodology on water use in garlic. Agricultural Water Management. 260. Article 107280. https://doi.org/10.1016/j.agwat.2021.107280.Theory and development of a VRI decision support system: The USDA ARS ISSCADA approach

- (Abstract Only)Evett, S.R., O'Shaughnessy, S.A., Andrade, M.A., Colaizzi, P.D., Schwartz, R.C., Schomberg, H.H., Stone, K.C., Vories, E.D., Sui, R., Larue, J. 2021. Theory and development of a VRI decision support system: The USDA ARS ISSCADA approach [abstract]. Pre-recorded video presentation, ASABE/IA 6th Decennial National Irrigation Symposium, December 6-10, 2021, San Diego, CA.Water conservation and yield of dryland forage and grain for a wheat-sorghum-fallow cropping system

- (Abstract Only)Baumhardt, R.L., Johnson, G.L., Schwartz, R.C. 2020. Water conservation and yield of dryland forage and grain for a wheat-sorghum-fallow cropping system [abstract]. 2020 ASA-CSSA-SSSA International Annual Meeting, November 9-13, 2020, Virtual. Paper No. 127637.Modeled cotton yield response to irrigation and El Nino Southern Oscillation phases for thermally limited growing seasons of western Kansas

- (Abstract Only)Baumhardt, R.L., Haag, L.A., Gowda, P.H., Schwartz, R.C., Marek, G.W., Lamm, F.R. 2021. Modeled cotton yield response to irrigation and El Nino Southern Oscillation phases for thermally limited growing seasons of western Kansas [abstract]. ASA-CSSA-SSSA International Annual Meeting (Virtual), November 7-10, 2021, in Salt Lake City, UT. Paper No. 139201.Water allocation strategies and tools for irrigation management decisions

- (Abstract Only)Schwartz, R.C. 2021. Water allocation strategies and tools for irrigation management decisions [abstract]. College of Agriculture and Health Sciences Research Seminar Series, April 1, 2021, Prairie View A&M University (Virtual).Irrigation management - Determining crop water requirements

- (Abstract Only)Schwartz, R.C. 2021. Irrigation management - Determining crop water requirements [abstract]. Virtual presentation in Spanish to students and faculty for the Carrera de Ingenieria Agricola de la Escuela Superior Agropecuaria de Manabi (Agricultural Engineering Department, School of Agriculture, Calceta, Manabi), Ecuador, (virtual), February 3, 2021.Modeling cotton growth and yield response to irrigation practices for thermally limited growing seasons in Kansas
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Haag, L., Gowda, P.H., Schwartz, R.C., Marek, G.W., Lamm, F.R. 2021. Modeling cotton growth and yield response to irrigation practices for thermally limited growing seasons in Kansas. Transactions of the ASABE. 64(1):1-12. https://doi.org/10.13031/trans.13877.Controlling stormwater runoff that limits water availability and dryland crop productivity
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Dockal, J.R., Johnson, G.L., Brauer, D.K., Schwartz, R.C. 2020. Controlling stormwater runoff that limits water availability and dryland crop productivity. Frontiers in Sustainable Food Systems. 4. Article 533687. https://doi.org/10.3389/fsufs.2020.533687.Irrigation Scheduling Supervisory Control and Data Acquisition (ISSCADA)- a decision support tool for center pivot irrigation systems

- (Abstract Only)O'Shaughnessy, S.A., Andrade, M.A., Colaizzi, P.D., Evett, S.R., Schomberg, H.H., Stone, K.C., Sui, R., Vories, E.D., Schwartz, R.C. 2020. Irrigation Scheduling Supervisory Control and Data Acquisition (ISSCADA)- a decision support tool for center pivot irrigation systems [abstract]. 2020 Federal Laboratory Consortium for Technology Transfer National Meeting. Award presented to Technology Transfer team.Considering irrigation capacity for optimizing irrigated maize yield and profitability

- (Abstract Only)Schwartz, R.C., Dominguez, A., Pardo, J.J., Montoya, F., Guerrero, B., Bell, J.M. 2020. Considering irrigation capacity for optimizing irrigated maize yield and profitability [abstract]. ASA-CSSA-SSSA Annual International Meeting, November 8-12, 2020 (Virtual). Paper No. 127028.4.3.2 Time Domain Reflectometry (TDR)
                                                        

- (Book / Chapter)Evett, S.R., Or, D., Schwartz, R.C. 2020. 4.3.2 Time Domain Reflectometry (TDR). In: Montzka, C., Cosh, M., Nickeson, J., Camacho, F., editors. Good Practices for Satellite Derived Land Product Validation, Land Product Validation Subgroup (WGCV/CEOS), National Aeronautics and Space Administration, Goddard Space Flight Center. Greenbelt, MD: NASA. p. 68-73. https://doi.org/10.5067/doc/ceoswgcv/lpv/sm.001.Modeling cotton growth and yield response to irrigation practices for thermally limited growing seasons in Kansas

- (Proceedings)Baumhardt, R.L., Haag, L.A., Gowda, P.H., Schwartz, R.C., Marek, G.W., Lamm, F.R. 2021. Modeling cotton growth and yield response to irrigation practices for thermally limited growing seasons in Kansas. In: Proceedings of the 6th Decennial National Irrigation Symposium. ASABE/IA National Irrigation Symposium and Show, December 6-10, 2021, San Diego, California. Paper No. 20-087.Precipitation, runoff, and yields from terraced drylands with stubble-mulch or no tillage
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Johnson, G.L., Dockal, J.R., Brauer, D.K., Schwartz, R.C., Jones, O.R. 2020. Precipitation, runoff, and yields from terraced drylands with stubble-mulch or no tillage. Agronomy Journal. 112(5):3295-3305. https://doi.org/10.1002/agj2.20331.Response to deficit irrigation of morphological, yield and fiber quality traits of upland (Gossypium hirsutum L.) and Pima (G. barbadense L.) cotton in the Texas High Plains
                                                        

- (Peer Reviewed Journal)Witt, T.W., Ulloa, M., Schwartz, R.C., Ritchie, G.L. 2020. Response to deficit irrigation of morphological, yield and fiber quality traits of upland (Gossypium hirsutum L.) and Pima (G. barbadense L.) cotton in the Texas High Plains. Field Crops Research. 249:107759. https://doi.org/10.1016/j.fcr.2020.107759.Water use, yield and fiber quality response of six upland cotton cultivars to irrigation

- (Proceedings)Schwartz, R.C., Witt, T.W., Ulloa, M., Colaizzi, P.D., Baumhardt, R.L. 2020. Water use, yield and fiber quality response of six upland cotton cultivars to irrigation. In: Proceedings of National Cotton Council 2020 Beltwide Cotton Conference. 2020 Beltwide Cotton Conferences, January 8-10, 2020, Austin, Texas. Paper No. 19524.Effects of irrigation level and timing on profile soil water use by grain sorghum
                                                        

- (Peer Reviewed Journal)Bell, J.M., Schwartz, R.C., McInnes, K.J., Howell, T.A., Morgan, C.L. 2020. Effects of irrigation level and timing on profile soil water use by grain sorghum. Agricultural Water Management. 232(2020):106030. https://doi.org/10.1016/j.agwat.2020.106030.Factory calibrated soil water sensor performance using multiple installation orientations and depths
                                                        

- (Peer Reviewed Journal)Chen, Y., Marek, G.W., Marek, T.H., Heflin, K.R., Porter, D.O., Moorhead, J.E., Schwartz, R.C., Brauer, D.K. 2020. Factory calibrated soil water sensor performance using multiple installation orientations and depths. Applied Engineering in Agriculture. 36(1):39-54. https://doi.org/10.13031/aea.13448.A crop coefficient-based water use model with non-uniform root distribution
                                                        

- (Peer Reviewed Journal)Schwartz, R.C., Dominguez, A., Pardo, J.J., Colaizzi, P.D., Baumhardt, R.L., Bell, J.M. 2019. A crop coefficient-based water use model with non-uniform root distribution. Agricultural Water Management. https://doi.org/10.1016/j.agwat.2019.105892.Water use, yield and fiber quality response of six upland cotton cultivars to irrigation

- (Abstract Only)Schwartz, R.C., Witt, T.W., Ulloa, M., Colaizzi, P.D., Baumhardt, R.L. 2020. Water use, yield and fiber quality response of six upland cotton cultivars to irrigation [abstract]. Cotton Agronomy, Physiology, and Soil Conference, Beltwide Cotton Conference, January 8-10, 2020, Austin, Texas. Paper No. 6.Transitioning agricultural production for a declining aquifer in a semi-arid region

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Mauget, S.A. 2019. Transitioning agricultural production for a declining aquifer in a semi-arid region [abstract]. 2019 ASA-SSSA-CSSA Annual International Meeting, November 11-13, 2019, San Antonio, Texas. Abstract No. 85-4.Increasing utility of true TDR soil water sensing systems

- (Abstract Only)Evett, S.R., Schwartz, R.C., Strohmeier, S., Haddad, M., Schomberg, H.H. 2019. Increasing utility of true TDR soil water sensing systems [abstract]. Third Research Coordination Meeting of the IAEA Coordinated Research Project D1.50.17, October 14-17, 2019, Vienna, Austria.Determining water use of cotton (Gossypium spp.) for areas with declining levels of irrigation water

- (Proceedings)Witt, T.W., Ulloa, M., Schwartz, R.C. 2019. Determining water use of cotton (Gossypium spp.) for areas with declining levels of irrigation water [abstract]. ASA-CSSA-SSSA Proceedings. Available at: https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/121971.Optimized strategies for maize production under limited irrigation capacities

- (Abstract Only)Schwartz, R.C., Bell, J.M., Baumhardt, R.L., Colaizzi, P.D. 2019. Optimized strategies for maize production under limited irrigation capacities [abstract]. ASA-CSSA-SSSA Annual International Meeting, November 11-13, 2019, San Antonio, Texas. Poster session 350, poster no. 1372.Fusion of real-time soil water contents with ET modeling for improved irrigation scheduling decisions

- (Abstract Only)Schwartz, R.C., Dominguez, A., Bell, J.M. 2019. Fusion of real-time soil water contents with ET modeling for improved irrigation scheduling decisions [abstract]. 2019 ASA-CSSA-SSSA Annual International Meeting, November 10-13, 2019, San Antonio, Texas. Abstract No. 134-1.The occurrence of Fusarium verticillioides in limited irrigated maize

- (Abstract Only)Bell, J.M., Bynum, E., Schwartz, R.C., Isakeit, T., Heflin, K.D. 2019. The occurrence of Fusarium verticillioides in limited irrigated maize [abstract]. 2019 ASA-CSSA-SSSA Annual International Meeting, November 10-13, 2019, San Antonio, Texas. Poster session 350, poster no. 1374.How does long-term crop management affect soil organic matter in the Texas High Plains?

- (Abstract Only)Waldrip, H., Schwartz, R.C., He, Z., Todd, R.W., Baumhardt, R.L., Parker, D.B., Zhang, M. 2019. How does long-term crop management affect soil organic matter in the Texas High Plains? [abstract]. 74th SWCS International Annual Conference, July 28-31, 2019, Pittsburg, Pennsylvania. Paper No. 14.Resolving discrepancies between laboratory-determined field capacity values and field water content observations: implications for irrigation management
                                                        

- (Peer Reviewed Journal)Evett, S.R., Stone, K.C., Schwartz, R.C., O'Shaughnessy, S.A., Colaizzi, P.D., Anderson, S.K., Anderson, D.J. 2019. Resolving discrepancies between laboratory-determined field capacity values and field water content observations: Implications for irrigation management. Irrigation Science. 37:751-759. https://doi.org/10.1007/s00271-019-00644-4.Modeled El Nino-Southern oscillation effects on grain sorghum under varying irrigation strategies and cultural practices
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Marek, G.W., Moorhead, J.E. 2019. Modeled El Nino-Southern oscillation effects on grain sorghum under varying irrigation strategies and cultural practices. Agronomy Journal. 111(4):1913-1922. https://doi.org/10.2134/agronj2018.09.0616.Contrasting tillage effects on stored soil water, infiltration and evapotranspiration fluxes in a dryland rotation at two locations
                                                        

- (Peer Reviewed Journal)Schwartz, R.C., Schlegel, A., Bell, J.M., Baumhardt, R.L., Evett, S.R. 2019. Contrasting tillage effects on stored soil water, infiltration and evapotranspiration fluxes in a dryland rotation at two locations. Soil and Tillage Research. 190:157-174. https://doi.org/10.1016/j.still.2019.02.013.Water in the Cloud: A new system for field water monitoring with Cloud data access

- (Proceedings)Evett, S.R., Schomberg, H.H., Thompson, A.I., Schwartz, R.C., O'Shaughnessy, S.A., Andrade, M.A. 2018. Water in the Cloud: A new system for field water monitoring with Cloud data access. In: 2018 Irrigation Association Show and Education Conference Technical Session Proceedings. Irrigation Association Conference, December 3-7, 2018, Long Beach, California. p. 1-6. https://www.irrigation.org/IA/FileUploads/IA/Resources/TechnicalPapers/2018/Water_In_The_Cloud_EVETT.pdfEffects of irrigation uniformity on yield response and production economics of maize in a semiarid zone
                                                        

- (Peer Reviewed Journal)Nascimento, A., Schwartz, R.C., Lima, F., Lopez-Mata, E., Dominguez, A., Izquiel, A., Tarjuelo, J., Martinez-Romero, A. 2018. Effects of irrigation uniformity on yield response and production economics of maize in a semiarid zone. Agricultural Water Management. 211(2019):178-189. https://doi.org/10.1016/j.agwat.2018.09.051.Soil water and bulk electrical conductivity sensor technologies for irrigation and salinity management

- (Abstract Only)Schwartz, R.C., Evett, S.R., Dominguez, A., Lellis, B.C., Pardo, J.J. 2018. Soil water and bulk electrical conductivity sensor technologies for irrigation and salinity management. Final Report for IAEA-FAO Research Coordination Meeting - CRP D1.20.13 on Landscape Salinity and Water Management for Improving Agricultural Water Productivity. July 9-12, 2018. Vienna, Austria.Electromagnetic and nuclear soil water sensing methods: Comparisons and newer technologies

- (Abstract Only)Evett, S.R., Schwartz, R.C., Schomberg, H.H. 2018. Electromagnetic and nuclear soil water sensing methods: Comparisons and newer technologies [abstract]. In: Report of the Second Research Coordination Meeting of the CRP D1.50.17 "Nuclear Techniques for a Better Understanding of the Impact of Climate Change on Soil Erosion in Upland Agro-ecosystems (D1.50.17)". April 16-20, 2018. Rabat, Morocco.Deficit irrigation effects on yield and yield components of grain sorghum

- (Peer Reviewed Journal)Bell, J.M., Schwartz, R.C., McInnes, K.J., Howell, T.A., Morgan, C.L. 2018. Deficit irrigation effects on yield and yield components of grain sorghum. Agricultural Water Management. 203:289-296.Comments on "J. Singh et al., Performance assessment of factory and field calibrations for electromagnetic sensors in a loam soil [Agric. Water Manage. 196 (2018) 87-98]

- (Peer Reviewed Journal)Schwartz, R.C., Evett, S.R., Lascano, R.J. 2018. Comments on "J. Singh et al., Performance assessment of factory and field calibrations for electromagnetic sensors in a loam soil [Agric. Water Manage. 196: 87-98]. Agricultural Water Management. 203:236-239.Planting geometry and growing season effects on the growth and yield of dryland cotton
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Marek, G.W., Bell, J.M. 2018. Planting geometry and growing season effects on the growth and yield of dryland cotton. Agricultural Sciences. 9(1):99-116. https://doi.org/10.4236/as.2018.91008.Row and plant spacing effects on growth and yield of dryland cotton where growing season duration is limited

- (Proceedings)Improving water management in sorghum cultivation
                                                        

- (Book / Chapter)Bell, J.M., Schwartz, R.C., Mcinnes, K.J., Xue, Q., Porter, D. 2018. Improving water management in sorghum cultivation. In: Rooney, W. editor. Achieving Sustainable Cultivation of Sorghum Volume 1: Genetics, Breeding, and Production Techniques. Cambridge, UK. Burleigh Dodds Science Publishing. https://doi.org/10.19103/AS.2017.0015.15.Grazing and tillage effects on soil properties, rain infiltration and sediment transport during fallow
                                                        

- (Peer Reviewed Journal)Baumhardt, R.L., Johnson, G.L., Schwartz, R.C., Brauer, D.K. 2017. Grazing and tillage effects on soil properties, rain infiltration and sediment transport during fallow. Soil Science Society of America Journal. 81:1548–1556. doi:10.2136/sssaj2017.04.0133.Crop water production functions of grain sorghum and winter wheat in Kansas and Texas

- (Peer Reviewed Journal)Moberly, J., Aiken, R.M., Lin, X., Schlegel, A.J., Baumhardt, R.L., Schwartz, R.C. 2017. Crop water production functions of grain sorghum and winter wheat in Kansas and Texas. Journal of Contemporary Water Research and Education. 162:42-60.A comparison of second order derivative based models for time domain reflectometry wave form analysis

- (Peer Reviewed Journal)Wang, Z., Schwartz, R.C., Kojima, Y., Chen, Y., Horton, R. 2017. A comparison of second order derivative based models for time domain reflectometry wave form analysis. Vadose Zone Journal. 16(7):1-10.Irrigation strategies that use cutout for optimum boll maturation and yield where growing season duration is limited

- (Proceedings)Baumhardt, R.L., Brauer, D.K., Schwartz, R.C. 2017. Irrigation strategies that use cutout for optimum boll maturation and yield where growing season duration is limited. In: Proceedings of 2017 Beltwide Cotton Conference. January 4-6, 2017, Dallas, Texas. p.113-118.Variable rate irrigation (VRI)

- (Abstract Only)Evett, S.R., Oshaughnessy, S.A., Andrade, A., Schwartz, R.C. 2016. Variable rate irrigation (VRI). 2016 irrigated crop production update, Lethbridge, Canada.Relating soil available water fraction to water stress indices

- (Proceedings)Evett, S.R., O'Shaughnessy, S.A., Colaizzi, P.D., Schwartz, R.C. 2016. Relating soil available water fraction to water stress indices. In: Technical Program Proceedings - Agriculture Sessions. Irrigation Association Show and Technical Conference, December 5-9, 2016, Las Vegas, Nevada. p. 280-289.Long-term conventional and no-tillage effects on field hydrology and yields of a dryland crop rotation

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Jones, O.R., Scanlon, B.R., Reedy, R.C., Marek, G.W. 2017. Long-term conventional and no-tillage effects on field hydrology and yields of a dryland crop rotation. Soil Science Society of America Journal. 81(1)200-209.Frequency domain probe design for high frequency sensing of soil moisture

- (Peer Reviewed Journal)Pelletier, M.G., Schwartz, R.C., Holt, G.A., Wanjura, J.D., Green, T.R.Frequency domain probe design for high frequency sensing of soil moisture. Agriculture. 6(4):60-72. 2016.Water use, canopy temperature, lint yield, and fiber quality response of six upland cotton cultivars to water stress

- (Abstract Only)Schwartz, R.C., Witt, T., Ulloa, M., Ritchie, G., Auld, D., Colaizzi, P.D., Baumhardt, R.L., Pelletier, M.G., Burke, J.J. 2017. Water use, canopy temperature, lint yield, and fiber quality response of six upland cotton cultivars to water stress [abstract]. In: Proceedings of National Cotton Council Beltwide Cotton Conference. Beltwide Cotton Conference, January 4-6, 2017, Dallas, Texas.Do more seeds per panicle improve grain sorghum yield

- (Peer Reviewed Journal)Tolk, J.A., Schwartz, R.C. 2016. Do more seeds per panicle improve grain sorghum yield. Crop Science. 57:1-7.Sustainable semiarid dryland production in relation to tillage effects on Hydrology: 1983-2013

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Jones, O.R., Scanlon, B.R., Reedy, R.C., Marek, G.W. 2016. Sustainable semiarid dryland production in relation to tillage effects on Hydrology: 1983-2013. ASA-CSSA-SSSA Annual Meeting Abstracts, in Phoenix, Az.,  November 6-9, 2016.Water use, yield, and fiber quality differences of diverse cotton (gossypium spp.) genotypes

- (Abstract Only)Witt, T., Ulloa, M., Auld, D., Schwartz, R.C., Ritchie, G., Pelletier, M.G., Burke, J.J. 2016. Water use, yield, and fiber quality differences of diverse cotton (gossypium spp.) genotypes [abstract]. National Cotton Council Beltwide Cotton Conference. P16936.El Nino southern oscillation effects on dryland crop production in the Texas High Plains

- (Peer Reviewed Journal)Baumhardt, R.L., Mauget, S.A., Schwartz, R.C., Jones, O. 2016. El Nino southern oscillation effects on dryland crop production in the Texas High Plains. Agronomy Journal. 108(2):1-9. dio:10.2134/agronj2015.0403.Retrieving leaf area index from remotely sensed data using advanced statistical approaches

- (Peer Reviewed Journal)Gowda, P., Oommen, T., Misra, D., Schwartz, R.C., Howell, T.A., Wagle, P. 2015. Retrieving leaf area index from remotely sensed data using advanced statistical approaches. GIScience and Remote Sensing. 4:156, doi:10.4172/2469-4134.1000156.Strategies to improve water productivity in a water-stressed future

- (Proceedings)Evett, S.R., Oshaughnessy, S.A., Andrade, A., Brauer, D.K., Colaizzi, P.D., Schwartz, R.C. 2015. Strategies to improve water productivity in a water-stressed future. Alfalfa National Symposium Proceedings. Western Alfalfa and Forage Symposium, December 4, 2015, Reno, Nevada.Constraints on water use efficiency of drought tolerant maize grown in a semi-arid environment
                                                        

- (Peer Reviewed Journal)Tolk, J.A., Evett, S.R., Wenwei, X., Schwartz, R.C. 2015. Constraints on water use efficiency of drought tolerant maize grown in a semi-arid environment. Field Crops Research. 186(2016)66-77.Soil heat flux calculation for sunlit and shaded surfaces under row crops: 1 - Model Development and sensitivity analysis
                                                        

- (Peer Reviewed Journal)Colaizzi, P.D., Evett, S.R., Agam, N., Schwartz, R.C., Kustas, W.P. 2015. Soil heat flux calculation for sunlit and shaded surfaces under row crops: 1 - Model Development and sensitivity analysis. Agriculture and Forest Meterology. 216: 115-128. doi: 10.1016/j.agrformet.2015.10.010Soil heat flux calculation for sunlit and shaded surfaces under row crops: 2. Model Test
                                                        

- (Peer Reviewed Journal)Colaizzi, P.D., Evett, S.R., Schwartz, R.C., Kustas, W.P., Cosh, M.H., Mckee, L.G. 2015. Soil heat flux calculation for sunlit and shaded surfaces under row crops: 2. Model Test. Agricultural and Forest Meteorology. 216(129):129-140. doi:10.1016/j.agrformet.2015.10.009.Crop water production functions for grain sorghum and winter wheat

- (Abstract Only)Moberly, J., Aiken, R.M., Xiaomao, L., Stone, L.R., Schlegel, A.J., Baumhardt, R.L., Schwartz, R.C., O'Brien, D. 2016. Crop water production functions for grain sorghum and winter wheat. ASA-CSSA-SSSA Annual Meeting Abstracts, Minneapolis, MN, November 16-18, 2015.Current developments in soil water sensing for climate, environment, hydrology and agriculture

- (Abstract Only)Evett, S.R., Schwartz, R.C., Clewett, C., Oshaughnessy, S.A., Colaizzi, P.D. 2015. Current developments in soil water sensing for climate, environment, hydrology and agriculture. Seminar Series of Texas A&M University Departments of Biological and Agricultural Engineering, and Water Management and Hydrologic SciencesLong-term changes in soil organic carbon and nitrogen under semiarid tillage and cropping practices

- (Peer Reviewed Journal)Schwartz, R.C., Baumhardt, R.L., Scanlon, B.R., Bell, J.M., Davis, R.G., Ibragimov, N., Jones, O.R., Reedy, R.C. 2015. Long-term changes in soil organic carbon and nitrogen under semiarid tillage and cropping practices. Soil Science Society of America Journal. 79:1771-1781.Exploring high throughput phenotyping, plant architecture and plant-boll distribution for improving drought tolerance in cotton

- (Abstract Only)Witt, T.W., Ulloa, M., Auld, D.L., Schwartz, R.C., Ritchie, G.L., Pelletier, M.G., Burke, J.J. 2015. Exploring high throughput phenotyping, plant architecture and plant-boll distribution for improving drought tolerance in cotton [abstract]. The Association for the Advancement of Industrial Crops, October 18-22, 2015, Lubbock, Texas. p. 58.New soil water sensors for irrigation management

- (Abstract Only)Evaluation of aqua crop simulation of early season evaporation and water flux in a semiarid environment

- (Abstract Only)Evett, S.R., Ibragimov, N., Schwartz, R.C., Tolk, J.A. 2015. Evaluation of aqua crop simulation of early season evaporation and water flux in a semiarid environment [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 268-1.Residue management increases fallow water conservation and yield deficit irrigated crops grown in rotation with wheat

- (Abstract Only)Constraints on water use efficiency of drought tolerant maize grown in a semi-arid environment

- (Abstract Only)Tolk, J.A., Evett, S.R., Xu, W., Schwartz, R.C. 2015. Constraints on water use efficiency of drought tolerant maize grown in a semi-arid environment [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 196-3.Crop rotation and residue management effects on deficit irrigated cotton and corn

- (Proceedings)Baumhardt, R.L., Schwartz, R.C., Evett, S.R., Colaizzi, P.D., Howell, T.A. 2015. Crop rotation and residue management effects on deficit irrigated cotton and corn. ASABE Annual International Meeting. CDROM:Paper#152143137.Field-measured, hourly soil water evaporation stages in relation to reference evapotranspiration rate and soil to air temperature ratio

- (Peer Reviewed Journal)Tolk, J.A., Evett, S.R., Schwartz, R.C. 2015. Field-measured, hourly soil water evaporation stages in relation to reference evapotranspiration rate and soil air temperature ratio. Vadose Zone Journal. doi:10.2136/vzj2014.07.0079.Evaluation of measured and simulated cotton water use and yield under full and deficit irrigation

- (Proceedings)Ibragimov, N., Evett, S.R., Schwartz, R.C., Baumhardt, R.L. 2015. Evaluation of measured and simulated cotton water use and yield under full and deficit irrigation. Beltwide Cotton Conference, San Antonio, Jan.5-7, 2015, 956-961:CDROMIn situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions with subsurface drip irrigation

- (Abstract Only)Evett, S.R., Schwartz, R.C., Brauer, D.K., Franz, T., Ruthardt, B.B., Copeland, K.S. 2014. In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions with subsurface drip irrigation [abstract].Soil water sensing for climate change studies; Applicability of COSMOS and local sensor networks

- (Abstract Only)Evett, S.R., Schwartz, R.C., Brauer, D.K., Franz, T., Ruthardt, B.B., Copeland, K.S. 2014. Soil water sensing for climate change studies; Applicability of COSMOS and local sensor networks [abstract].Evaluation of measured and simulated cotton water use and yield under full and deficit irrigation

- (Abstract Only)Ibragimov, N., Evett, S.R., Schwartz, R.C., Baumhardt, R.L. 2015. Evaluation of measured and simulated cotton water use and yield under full and deficit irrigation. National Cotton Council Beltwide Cotton Conference,San Antonio, TX. Jan 5-7,2015. 956-961 CDROMSoil-moisture sensors and irrigation management

- (Abstract Only)Evett, S.R., Schwartz, R.C. 2014. Soil-moisture sensors and irrigation management. International Irrigation Show [abstract].Understanding Soil Moisture

- (Abstract Only)Evett, S.R., Schwartz, R.C. 2014. Understanding Soil Moisture. International Irrigation Show[abstract] 2014 Irrigation Show and Education Conf., Nov. 17 - 21, 2014.Soil water sensing: Implications of sensor capabilities for variable rate irrigation management

- (Proceedings)Evett, S.R., Oshaughnessy, S.A., Colaizzi, P.D., Schwartz, R.C. 2014. Soil water sensing: Implications of sensor capabilities for variable rate irrigation management. Irrigation Associations Exposition and Technical Conference Proceedings.Enhancing water use efficiency with plant feedback irrigation control: The case for sorghum

- (Abstract Only)Evett, S.R., Oshaughnessy, S.A., Tolk, J.A., Colaizzi, P.D., Baumhardt, R.L., Schwartz, R.C. 2014. Enhancing water use efficiency with plant feedback irrigation control: The case for sorghum. Special Session China-US Water Saving Technology Flagship Project Workshop, 18th World Congress of CIGR. skpNew down-hole TDR method for deep profile soil water content and bulk electrical conductivity

- (Abstract Only)Evett, S.R., Schwartz, R.C. 2014. New down-hole TDR method for deep profile soil water content and bulk electrical conductivity. Research Coordination Meeting [abstract].A new soil water and bulk eletrical conductivity sensor technology for irrigation and salinity management

- (Other)Evett, S.R., Schwartz, R.C., Casanova, J.J., Anderson, S. 2014. A new soil water and bulk eletrical conductivity sensor technology for irrigation and salinity management. International Atomic Energy Agency.Sensing water from subsurface drip irrigation laterals: In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions

- (Abstract Only)Evett, S.R., Schwartz, R.C., Ruthardt, B.B., Bell, J.M., Copeland, K.S. 2014. Sensing water from subsurface drip irrigation laterals: In situ sensors, weighing lysimeters and COSMOS under vegetated and bare conditions. ASA-CSSA-SSSA Annual Meeting Abstracts [abstract].Precipitation, irrigation and crop growth signals in COSMOS data

- (Abstract Only)Evett, S.R., Schwartz, R.C., Bell, J.M. 2014. Precipitation, irrigation and crop growth signals in COSMOS data. Presented at the 2014 Workshop at MOISST: Advancing Soil Moisture Science and Applications, Stillwater, Oklahoma, 4-5 June 2014. Available at http://soilphysics.okstate.edu/research/moisst-2014-presentations-1.Time domain reflectometry waveform analysis with second order bounded mean oscillation

- (Peer Reviewed Journal)Wang, Z., Kojima, Y., Lu, S., Chen, Y., Horton, R., Schwartz, R.C. 2014. Time domain reflectometry waveform analysis with second order bounded mean oscillation. Soil Science Society of America Journal. doi:10.2136sssaj2013.11.0497.Profiling soil water content sensor

- (Abstract Only)Crop water stress indices correlated with soil water storage: Implications for variable rate irrigation management

- (Abstract Only)Evett, S.R., Oshaughnessy, S.A., Colaizzi, P.D., Schwartz, R.C. 2014. Crop water stress indices correlated with soil water storage: Implications for variable rate irrigation management [abstract]. International Soil Sensing Conference, Houston, TX, March 12-14, 2014.skpCOSMOS soil water sensing affected by crop biomass and water status

- (Abstract Only)Evett, S.R., Schwartz, R.C., Bell, J. 2014. COSMOS soil water sensing affected by crop biomass and water status.[abstract]. In Proceedings of the Third In-Situ and Remote Soil Moisture Sensing Technology Conference, March 12-14, 2014, Houston, TX. p.30.Soil Water Sensing-Focus on Variable Rate Irrigation

- (Proceedings)Evett, S.R., Colaizzi, P.D., Schwartz, R.C., Oshaughnessy, S.A. 2014. Soil Water Sensing-Focus on Variable Rate Irrigation. Proceedings of the Central Plains Irrigation Conference.COSMOS soil water sensor compared with EM sensor network & weighing lysimeter

- (Abstract Only)Evett, S.R., Schwartz, R.C. 2014. COSMOS soil water sensor compared with EM sensor network & weighing lysimeter.[abstract] W2188 Multi-State Soil Physics Committee Meeting, January 2-4, 2014, Las Vegas, Nevada.Annual report to W-2188 multi-state research project "Characterizing Mass and Energy Transport at Different Vadose Zone Scales"

- (Other)Evett, S.R., Schwartz, R.C. 2014. Annual report to W-2188 multi-state research project "Characterizing Mass and Energy Transport at Different Vadose Zone Scales" Scientific and Technical Review.A reevaluation of time domain reflectomery propagation time determination in soils

- (Peer Reviewed Journal)Schwartz, R.C., Casanova, J.J., Bell, J.M., Evett, S.R. 2013. A reevaluation of time domain reflectomery propagation time determination in soils. Vadose Zone Journal. 13(1):1-13, doi:10.2136/vzj2013.07.0135.Design and field tests of a directly coupled waveguide-on-access-tube soil water sensor

- (Peer Reviewed Journal)Casanova, J.J., Schwartz, R.C., Evett, S.R. 2013. Design and field tests of a directly coupled waveguide-on-access-tube soil water sensor. Applied Engineering in Agriculture. 28(4):603-610.Maximizing grain sorghum water use efficiency under deficit irrigation

- (Abstract Only)A reevaluation of TDR propagation time determination in soils and geological media

- (Abstract Only)Schwartz, R.C., Casanova, J.J., Bell, J.M., Evett, S.R. 2013. A reevaluation of TDR propagation time determination in soils and geological media [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Session 413-14, p. 195.Contrasting tillage effects of infiltration, stored soil water and yield at two locations

- (Abstract Only)Schwartz, R.C., Schlegel, A.J., Baumhardt, R.L., Evett, S.R., Bell, J.M. 2013. Contrasting tillage effects of infiltration, stored soil water and yield at two locations [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Session 182-3, p. 119.Automated soil water balance sensing: From layers to control volumes

- (Abstract Only)Evett, S.R., Schwartz, R.C., Casanova, J.J., Oshaughnessy, S.A. 2013. Automated soil water balance sensing: From layers to control volumes [abstract] Automated methods for continuous measurements agro climatalogy and forestry workshop, Ben Gurion University, Israel, September 7-12, 2013. p. 7Soil water sensing methods-Usefulness for evapotranspiration monitoring and links to remote sensing

- (Abstract Only)Evett, S.R., Schwartz, R.C., Ochsner, T., Cosh, M.H. 2014. Soil water sensing methods-Usefulness for evapotranspiration monitoring and links to remote sensing[abstract].Irrigated agriculture with limited water supply:Tools for understanding and managing irrigation and crop water use efficiencies

- (Abstract Only)Evett, S.R., Oshaughnessy, S.A., Colaizzi, P.D., Schwartz, R.C., Howell, T.A. 2013. Irrigated agriculture with limited water supply:Tools for understanding and managing irrigation and crop water use efficiencies [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Session 96-1, p. 86.An overview of soil water sensors for salinity & irrigation management

- (Abstract Only)Evett, S.R., Schwartz, R.C. 2013. An overview of soil water sensors for salinity & irrigation management. [abstract]. 2013 CDROMDirectly coupled vs conventional time domain reflectometry in soils

- (Peer Reviewed Journal)Casanova, J.J., Schwartz, R.C., Evett, S.R., Anderson, S.K. 2013. Directly coupled vs conventional time domain reflectometry in soils. Applied Engineering in Agriculture. 29(5):771-777.Residue management effects on water use and yield of deficit irrigated corn

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Howell, T.A., Evett, S.R., Colaizzi, P.D. 2013. Residue management effects on water use and yield of deficit irrigated corn. Agronomy Journal. 105(4):1035-1044.Residue management effects on water use and yield of deficit irrigated cotton

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Howell, T.A., Evett, S.R., Colaizzi, P.D. 2013. Residue management effects on water use and yield of deficit irrigated cotton. Agronomy Journal. 105(4):1026-1034.Soil water sensors for irrigation management-What works, what doesn't, and why

- (Other)Evett, S.R., Schwartz, R.C., Casanova, J.J. 2013. Soil water sensors for irrigation management-What works, what doesn't, and why. Meeting Abstract. Presentation made at Ogallala Aquifer Workshop, March 7, 2013, Amarillo, TX.Soil permittivity response to bulk electrical conductivity for selected soil water sensors

- (Peer Reviewed Journal)Schwartz, R.C., Casanova, J.J., Pelletier, M.G., Evett, S.R., Baumhardt, R.L. 2013. Soil permittivity response to bulk electrical conductivity for selected soil water sensors. Vadose Zone Journal. 12(2): doi10.2136/vzj2012.0133.Irrigation scheduling by ET and soil water sensing

- (Abstract Only)Evett, S.R., Schwartz, R.C., Howell, T.A. 2012. Irrigation scheduling by ET and soil water sensing[abstract]. Irrigation Associations Exposition and Technical Conference, November 3-7, 2012, Orlando, Florida, 2012 CDROM.Optimizing the use of limited water in agricultural systems

- (Abstract Only)Schwartz, R.C., Ibragimov, N., Evett, S.R., Bell, J.M. 2012. Optimizing the use of limited water in agricultural systems. [abstract]. Uzbekistan-US Sciences Collaboration: Defining the Opportunites, September 27-29,2012 Tashkent, Uzbekistan.Irrigation science and water quality challenges in Ukbekistan

- (Abstract Only)Evett, S.R., Schwartz, R.C., Butaev, M. 2012. Irrigation science and water quality challenges in Ukbekistan.[abstract]American Association for the Advancement of Science-Academy of Sciences of Uzbekistan joint workshop, U.S. Life Sciences Collaboration:Defining the Opportunites, Tashkent, Uzbekistan, September 27-29, 2012.A waveguide-on-access-tube (WOAT) TDR sensor for deep soil water content and bulk EC

- (Abstract Only)Evett, S.R., Casanova, J.J., Schwartz, R.C. 2012. A waveguide-on-access-tube (WOAT) TDR sensor for deep soil water content and bulk EC [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. 2012 CDROM. Paper No. 59-11.Can weighing lysimeter ET represent surrounding field ET well enough to test flux station measurements of daily and sub-daily ET?

- (Peer Reviewed Journal)Evett, S.R., Schwartz, R.C., Howell, T.A., Baumhardt, R.L., Copeland, K.S. 2012. Can weighing lysimeter ET represent surrounding field ET well enough to test flux station measurements of daily and sub-daily ET?. Advances in Water Resources. 50:79-90. http://dx.doi.org/10.1016/j.advwatres.2012.07.023.Soil water sensor response to bulk electrical conductivity

- (Abstract Only)Schwartz, R.C., Casanova, J.J., Evett, S.R., Bell, J.M., Pelletier, M.G., Baumhardt, R.L. 2012. Soil water sensor response to bulk electrical conductivity. {abstract}. American Society of Agronomy Meetings. 2012 CDROM. Paper No. 59-10.Increasing yield of deficit irrigated cotton and corn with conservation tillage

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Evett, S.R., Colaizzi, P.D., Howell, T.A. 2012. Increasing yield of deficit irrigated cotton and corn with conservation tillage.{abstract}. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 401-33.Design and field tests of an access-tube soil water sensor

- (Peer Reviewed Journal)Casanova, J.J., Evett, S.R., Schwartz, R.C. 2012. Design and field tests of an access-tube soil water sensor. Applied Engineering in Agriculture. 28(4):603-610.Soil profile method for soil thermal diffusivity, conductivity and heat flux:Comparison to soil heat flux plates

- (Peer Reviewed Journal)Evett, S.R., Agam, N., Kustas, W.P., Colaizzi, P.D., Schwartz, R.C. 2012. Soil profile method for soil thermal diffusivity, conductivity and heat flux: Comparison to soil heat flux plates. Advances in Water Resources. 50:41-54. http://dx.doi.org/10.1016/j.advwatres.2012.04.012.Using conservation tillage to increase yield and water use efficiency of corn and cotton under deficit irrigation

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Howell, T.A. 2012. Using conservation tillage to increase yield and water use efficiency of corn and cotton under deficit irrigation. [abstract]. Soil and Water Conservation Society. Paper No.61319939.Soil water sensors:Problems, advances and potential for irrigation scheduling

- (Other)Evett, S.R., Schwartz, R.C., Casanova, J.J., Lascano, R.J., Oshaughnessy, S.A., Colaizzi, P.D. 2012. Soil water sensors:Problems, advances and potential for irrigation scheduling. Scientific and Technical Review.  2012 CDROM.Residue and long-term tillage and crop rotation effects on simulated rain infiltration and sediment transport

- (Peer Reviewed Journal)Baumhardt, R.L., Johnson, G.L., Schwartz, R.C. 2012. Residue and long-term tillage and crop rotation effects on simulated rain infiltration and sediment transport. Soil Science Society of America Journal. 76(4):1370-1378.Design of access-tube TDR sensor for soil water content: Testing

- (Peer Reviewed Journal)Casanova, J.J., Evett, S.R., Schwartz, R.C. 2012. Design of access-tube TDR sensor for soil water content: Testing. IEEE Sensors Journal. 12(6):2064-2070.Soil moisture sensing via swept frequency based microwave sensors

- (Peer Reviewed Journal)Pelletier, M.G., Karthikeyan, S., Green, T.R., Schwartz, R.C., Wanjura, J.D., Holt, G.A. 2012. Soil moisture sensing via swept frequency based microwave sensors. Sensors. 12(1):753-767.Design of access-tube TDR sensor for soil water content: Theory

- (Peer Reviewed Journal)Casanova, J.J., Evett, S.R., Schwartz, R.C. 2012. Design of access-tube TDR sensor for soil water content: Theory. IEEE Sensors Journal.  12(6):1979-1986.Soil water sensing for water balance, ET, and WUE

- (Peer Reviewed Journal)Evett, S.R., Schwartz, R.C., Casanova, J.J., Heng, L.K. 2012. Soil water sensing for water balance, ET, and WUE. Agricultural Water Management. 104:1-9.Radiation model for row crops: II. Model evaluation

- (Peer Reviewed Journal)Colaizzi, P.D., Schwartz, R.C., Evett, S.R., Howell, T.A., Gowda, P., Tolk, J.A. 2012. Radiation model for row crops: II. Model evaluation. Agronomy Journal. 104(2):241-255.Tillage, residue, and crop rotation effects on rain infiltration and sediment transport

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C. 2011. Tillage, residue, and crop rotation effects on rain infiltration and sediment transport [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 271-2.Manure and mineral fertilizer effects on seasonal dynamics of bioactive soil phosphorus fractions

- (Peer Reviewed Journal)Schwartz, R.C., Dao, T.H., Bell, J.M. 2011. Manure and mineral fertilizer effects on seasonal dynamics of bioactive soil phosphorus fractions. Agronomy Journal. 103(6):1724-1733.Quantification of soil water evaporation using TDR-microlysimetry

- (Abstract Only)Bell, J.M., Schwartz, R.C., Mcinnes, K.J., Howell, T.A., Morgan, C.S. 2011. Quantification of soil water evaporation using TDR-microlysimetery [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 341-6.Design and testing of access-tube TDR soil water sensor

- (Proceedings)Casanova, J.J., Evett, S.R., Schwartz, R.C. 2011. Design and testing of access-tube TDR soil water sensor. ASABE Annual International Meeting. August 7-10, 2011, Louisville, KY. Paper No. 1110994. 2011 CDROM.Tillage intensity and residue effects on early season evaporation and yield in mung bean

- (Abstract Only)Ibragimov, N.M., Schwartz, R.C., Evett, S.R., Esanbekov, M.Y., Khasanova, F.M., Karabaev, I.T., Mirzaev, L.A. 2011. Tillage intensity and residue effects on early season evaporation and yield in mung bean [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 343-1.Monitoring near surface soil water and associated dynamics of infiltration and evaporation fluxes

- (Abstract Only)Schwartz, R.C., Schlegel, A.J., Evett, S.R., Baumhardt, R.L. 2011. Monitoring near surface soil water and associated dynamics of infiltration and evaporation fluxes [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 341-13.Soil heat flux determined from diel water content and temperature variations

- (Abstract Only)Evett, S.R., Agam, N., Kustas, W.P., Colaizzi, P.D., Schwartz, R.C. 2011. Soil heat flux determined from diel water content and temperature variations [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 341-8.Combined use of neutron thermalization and electromagnetic sensing in assessing soil water dynamics

- (Popular Publication)Schwartz, R.C., Evett, S.R. 2011. Combined use of neutron thermalization and electromagnetic sensing in assessing soil water dynamics. International Atomic Energy Agency. 34:(1)17-19.Field tests of a down-hole TDR profiling water content measurement system

- (Abstract Only)Casanova, J.J., Evett, S.R., Schwartz, R.C. 2011. Field tests of a down-hole TDR profiling water content measurement system [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 243-6.Analysis of coaxial soil cell in reflection and transmission

- (Peer Reviewed Journal)Pelletier, M.G., Schwartz, R.C., Evett, S.R., McMichael, B.L., Lascano, R.J., Gitz, D.C. 2011. Analysis of coaxial soil cell in reflection and transmission. Sensors. 11:2592-2610.Monitoring near surface soil water and associated dynamics of infiltration and evaporation fluxes

- (Abstract Only)Schwartz, R.C., Evett, S.R., Schlegel, A.J., Baumhardt, R.L. 2011. Monitoring near surface soil water and associated dynamics of infiltration and evaporation fluxes [abstract]. European Geosciences Union General Assembly, April 3-8, 2011, Vienna, Austria.Local and profile soil water content monitoring: A comparison of methods in terms of apparent and actual spatial variation

- (Abstract Only)Evett, S.R., Schwartz, R.C., Ibragimov, N., Mazahreh, N.T., Katbeh-Bader, N. 2011. Local and profile soil water content monitoring: A comparison of methods in terms of apparent and actual spatial variation [abstract]. European Geosciences Union General Assembly, April 3-8, 2011, Vienna, Austria. 2011 CDROMLocal and profile soil water content monitoring: A comparison of methods in terms of apparent and actual spatial variation

- (Abstract Only)Evett, S.R., Schwartz, R.C., Ibragimov, N., Mazahreh, N., Katbeh-Bader, N. 2011. Local and profile soil water content monitoring: A comparison of methods in terms of apparent and actual spatial variation  [poster]. European Geosciences Union General Assembly, April 3-8, 2011, Vienna, Austria.Nitrogen Requirements for Ethanol Production from Sweet and Photoperiod Sensitive Sorghums in the Southern High Plains

- (Peer Reviewed Journal)Bronson, K.F., Schwartz, R.C., Tamang, P.L., Malapati, A., Johnson, J., Moore-Kucera, J. 2011. Nitrogen requirements for ethanol production from sweet and photoperiod sensitive sorghums in the Southern High Plains. Agronomy Journal. 103(2):431-440.Tillage and cattle grazing effects on soil properties and grain yields in a dryland wheat-sorghum-fallow rotation

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., MacDonald, J.C., Tolk, J.A. 2011. Tillage and cattle grazing effects on soil properties and grain yields in a dryland wheat-sorghum-fallow rotation. Agronomy Journal. 103(3):914-922Fringe capacitance correction for a coaxial soil cell

- (Peer Reviewed Journal)Pelletier, M.G., Viera, J., Schwartz, R.C., Lascano, R.J., Evett, S.R., Green, T.R., Wanjura, J.D., Holt, G.A. 2011. Fringe capacitance correction for a coaxial soil cell. Sensors. 11(1):757-770.Water use efficiency of dryland cowpea, sorghum and sunflower under reduced tillage

- (Peer Reviewed Journal)Moroke, T.S., Schwartz, R.C., Brown, K.W., Juo, A.S. 2011.  Water use efficiency of dryland cowpea, sorghum and sunflower under reduced tillage. Soil and Tillage Research. 112:(1)76-84.Soil water sensing for water balance, ET and WUE

- (Other)In-Soil and Down-Hole Soil Water Sensors: Characteristics for Irrigation Management

- (Proceedings)Evett, S.R., Schwartz, R.C., Lascano, R.J., Pelletier, M.G. 2010. In-Soil and Down-Hole Soil Water Sensors: Characteristics for Irrigation Management. In: Proceedings of the 5th Decennial National Irrigation Symposium, December 5-8, 2010, Phoenix, Arizona. Paper No:IRR10-8346.2010 CDROM.Soil water sensors for irrigation scheduling:Can they deliver a management allowed depletion?

- (Peer Reviewed Journal)Tillage effects on soil water redistribution and bare soil evaporation throughout a season

- (Peer Reviewed Journal)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2010. Tillage effects on soil water redistribution and bare soil evaporation throughout a season. Soil & Tillage Research. 110(2):221-229.Manure management effects on phosphorus biotransformations and losses in animal production

- (Book / Chapter)Dao, T.H., Schwartz, R.C. 2011. Manure management effects on phosphorus biotransformations and losses during animal production. In: Bunemann, E.K., Oberson, A., Frossard, E., editors. Phosphorus in Action: Biological processes in soil P cycling. Soil Biology. Berlin, Germany: Springer. p. 407-429.Long-term conventional and no-tillage management, crop growth, and field hydrology

- (Abstract Only)Baumhardt, R.L., Scanlon, B., Schwartz, R.C., Reedy, R. 2010. Long-term conventional and no-tillage management, crop growth, and field hydrology. ASA-CSSA-SSSA Annual Meeting Abstracts, October 31-November 4, 2010, Long Beach, California. Paper No. 123-12. 2010 CDROM.Column displacement experiments to evaluate electrical conductivity effects on electromagnetic soil water sensing

- (Abstract Only)Schwartz, R.C., Evett, S.R., Pelletier, M.G. 2010. Column displacement experiments to evaluate electrical conductivity effects on electromagnetic soil water sensing [abstract]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, October 31-November 4, 2010, Long Beach, California. Paper No. 301-7. 2010 CDROM.Discussion of "Soil Moisture Measurements: Comparison of Instrumentation Performances" by Ventura Francesca, Facini Osvaldo, Piana Stefano, and Rossi Pisa Paola

- (Peer Reviewed Journal)Evett, S.R., Schwartz, R.C. 2011. Discussion of "Soil Moisture Measurements: Comparison of Instrumentation Performances" by Ventura Francesca, Facini Osvaldo, Piana Stefano, and Rossi Pisa Paola. Journal of Irrigation and Drainage.136(2)81-89.Comments on "J. Vera et. al., Soil water balance trial involving capacitance and neutron probe measurements"

- (Peer Reviewed Journal)Evett, S.R., Schwartz, R.C. 2010. Comments on "J. Vera et. al., Soil water balance trial involving capacitance and neutron probe measurements". Agricultural Water Management. 96:905-911, Agricultural Water Management. 97:182-184.Mineralizable phosphorus, nitrogen, and carbon relationships in dairy manure at various carbon-to-phosphorus ratios

- (Peer Reviewed Journal)Dao, T.H., Schwartz, R.C. 2010. Mineralizable phosphorus, nitrogen, and carbon relationships in dairy manure at various carbon-to-phosphorus ratios. Bioresource Technology. 101(10):3567-3574.Soil water sensors for irrigation scheduling:Can they deliver a management allowed depletion?

- (Abstract Only)Evett, S.R., Schwartz, R.C., Mazahreh, N., Jitan, M., Shaqir, I.M. 2009. Soil water sensors for irrigation scheduling:Can they deliver a management allowed depletion [abstract]? Symposium on Olive Irrigation and Oil Quality, December 5-10, 2009, Nazareth, Israel. p.0-30.A complex permittivity model for field estimation of soil water contents using time domain reflectometry

- (Abstract Only)Schwartz, R.C., Evett, S.R., Bell, J.M. 2009. A complex permittivity model for field estimation of soil water contents using time domain reflectometry [abstract]. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America 2009 Annual Meeting Abstracts, November 1-5, 2009, Pittsburgh,Pennsylvania.  2009 CD ROM.Tillage and grazing effects on yields of a dryland wheat-sorghum-fallow rotation

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Macdonald, J.C., Greene, L. Tillage and grazing effects on yields of a dryland wheat-sorghum-fallow rotation [abstract].  American Society of Agronomy, Crop Science Society of America, Soil Science Society of America 2009 Annual Meeting Abstracts, November 1-5, 2009, Pittsburgh,Pennsylvania.  2009 CD ROM.Tillage effects on soil water redistribution and bare soil evaporation throughout a season

- (Abstract Only)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2009. Tillage effects on soil water redistribution and bare soil evaporation throughout a season [abstract].  American Society of Agronomy, Crop Science Society of America, Soil Science Society of America 2009 Annual Meeting Abstracts, November 1-5, 2009, Pittsburgh,Pennsylvania.  2009 CD ROM.Soil profile water content determination:Spatiotemporal variability of electromagnetic and neutron probe sensors in access tubes

- (Peer Reviewed Journal)Evett, S.R., Schwartz, R.C., Tolk, J.A., Howell, T.A. 2009. Soil profile water content determination: Spatiotemporal variability of electromagnetic and neutron probe sensors in access tubes. Vadose Zone Journal. 8(4):926-941.Assessing indices for predicting potential nitrogen mineralization in soils under different management systems

- (Peer Reviewed Journal)Schomberg, H.H., Wietholter, S., Griffin, T.S., Reeves, D.W., Cabrera, M.L., Fisher, D.S., Endale, D.M., Novak, J.M., Balkcom, K.S., Raper, R.L., Kitchen, N.R., Locke, M.A., Potter, K.N., Schwartz, R.C., Truman, C.C., Tyler, D.D. 2009. Assessing indices for predicting potential nitrogen mineralization in soils under different management systems. Soil Science Society of America Journal. 73:1575-1586.Complex permittivity model for time domain reflectometry soil water content sensing: I. Theory

- (Peer Reviewed Journal)Schwartz, R.C., Evett, S.R., Pelletier, M.G., Bell, J.M. 2009. Complex permittivity model for time domain reflectometry soil water content sensing: I. Theory. Soil Science Society of America Journal. 73(3):896-897.Complex permittivity model for time domain reflectometry soil water content sensing: II. Calibration

- (Peer Reviewed Journal)Schwartz, R.C., Evett, S.R., Bell, J.M. 2009. Complex permittivity model for time domain reflectometry soil water content sensing: II. Calibration. Soil Science Society of America Journal. 73(3):898-909.Phosphorus Dynamics in Amended Soils During the Growing Season:  II.  Ligand Exchange and Mineralization

- (Abstract Only)Dao, T.H., Schwartz, R.C., Bell, J.M. 2008. Phosphorus Dynamics in Amended Soils During the Growing Season: II. Ligand Exchange and Mineralization. Agronomy Abstracts No. 693-7.Analysis of Coaxial Soil Cell

- (Abstract Only)Pelletier, M.G., Schwartz, R.C., Evett, S.R., Mcmichael, B.L., Lascano, R.J., Gitz, D.C., Baker, J.T., Payton, P.R. 2008. Analysis of Coaxial Soil Cell. In: Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting, Oct. 6-8, 2008, Houston, TX. 2008 CDROM.Radiometric surface temperature components for row crops

- (Abstract Only)Colaizzi, P.D., Kustas, W.P., Oshaughnessy, S.A., Schwartz, R.C., Evett, S.R., Howell, T.A., Chavez Eguez, J.L., Gowda, P., Tolk, J.A. 2008. Radiometric surface temperature components for row crops [abstract]. 2008 Joint Meeting of American Society of Agronomy, Soil Science Society of America, and Crop Science Society of America, October 5-9, 2008, Houston, Texas.  Paper No. 618-14. 2008 CDROM.Phosphorus dynamics in amended soils during a growing season: I. Availability and plant uptake

- (Abstract Only)Schwartz, R.C., Dao, T.H., Bell, J.M. 2008. Phosphorus dynamics in amended soils during a growing season: I. Availability and plant uptake [abstract].2008 Joint Meeting of American Society of Agronomy, Soil Science Society of America, and Crop Science Society of America, October 5-9, 2008, Houston, Texas.  Paper No. 693-6.  2008 CD ROM.Conservation tillage and deficit irrigation effects on water use and yield of cotton and corn

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Howell, T.A. 2008. Conservation tillage and deficit irrigation effects on water use and yield of cotton and corn [abstract]. 2008 Joint Meeting of American Society of Agronomy, Soil Science Society of America, and Crop Science Society of America, October 5-9, 2008, Houston, Texas. Paper No. 755-8.  2008 CDROM.Cattle gain and crop yield for a dryland wheat-sorghum-fallow rotation

- (Peer Reviewed Journal)Baumhardt, R.L., Schwartz, R.C., Greene, L.W., Macdonald, J. 2009. Cattle gain and crop yield for a dryland wheat-sorghum-fallow rotation. Agronomy Journal. 101:150-158.Seasonal and long term changes in manure phosphorus availability

- (Abstract Only)Schwartz, R.C. 2007. Seasonal and long term changes in manure phosphorus availability. Nutrient Management Training, November 20, 2007, Texas A&M Research Center, Amarillo, Texas.Temperature and frequency dependent time-domain reflectometry water content calibrations in fine-textured soils

- (Abstract Only)Schwartz, R.C., Evett, S.R., Bell, J.M. 2007. Temperature and frequency dependent time-domain reflectometry water content calibrations in fine-textured soils [abstract]. ASA-CSSA-SSSA Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. 2007 CDROM.Evaluation of radiation partitioning models at Bushland, Texas

- (Abstract Only)Colaizzi, P.D., Evett, S.R., Howell, T.A., Schwartz, R.C., Tolk, J.A., Gowda, P., Chavez Eguez, J.L. 2007. Evaluation of radiation partitioning models at Bushland, Texas [abstract]. ASA-CSSA-SSSA Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. 2007 CDROM.Long term effects of profile-modifying deep plowing on soil properties and crop yield

- (Peer Reviewed Journal)Baumhardt, R.L., Jones, O., Schwartz, R.C. 2008. Long term effects of profile-modifying deep plowing on soil properties and crop yield. Soil Science Society of America Journal. 72:677-682.Estimation of soil water balance components using an iterative procedure

- (Peer Reviewed Journal)Schwartz, R.C., Baumhardt, R.L., Howell, T.A. 2008. Estimation of soil water balance components using an iterative procedure. Vadose Zone Journal. 7(1):115-123.Relationship between LAI and Landsat TM spectral vegetation indices in the Texas Panhandle

- (Proceedings)Gowda, P., Chavez Eguez, J.L., Colaizzi, P.D., Howell, T.A., Schwartz, R.C., Marek, T.H. 2007. Relationship between LAI and Landsat TM spectral vegetation indices in the Texas Panhandle. [abstract]. In: Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). Paper No. 072013. June 17-20, 2007, Minneapolis, Minnesota.Tillage effects on surface soil properties, crusting, and sorghum emergence

- (Abstract Only)Schwartz, R.C., Bell, J.M., Baumhardt, R.L. 2006. Tillage effects on surface soil properties, crusting, and sorghum emergence [abstract]. ASA-CSSA-SSSA Annual Meeting, November 12-16, 2006, Indianapolis, Indiana. 2006 CDROM.DEEP TILLAGE EFFECTS ON CROP PRODUCTIVITY AND SOIL PROPERTIES 30 YEARS AFTER TREATMENT

- (Abstract Only)Baumhardt, R.L., Jones, O.R., Schwartz, R.C. 2006. Deep tillage effects on crop productivity and soil properties 30 years after treatment [abstract]. ASA-CSSA-SSSA Annual Meeting, November 12-16, 2006, Indianapolis, Indiana. 2006 CDROM.ESTIMATION OF SOIL WATER CONTENT AND EVAPOTRANSPIRATION OF DRYLAND CROPS USING NEUTRON MOISTURE METER

- (Proceedings)Moroke, S.T., Schwartz, R.C., Brown, K.W., Makore, J. 2006. Estimation of soil water content and evapotranspiration of dryland crops using neutron moisture meter. In: Proceedings of the FAO/IAEA Workshop: Use of Nuclear Techniques in Addressing Soil-Water-Nutrient Issues for Sustainable Agricultural Production. World Congress of Soil Science, July 9-14, 2006, Philadelphia, PA. Session 1-13.MANAGING PHOSPHORUS-ENRICHED SOILS:  EFFECTS OF IRON AMENDMENT ON TEMPORAL DYNAMICS OF BIOACTIVE PHOSPHORUS POOLS

- (Abstract Only)Dao, T.H., Codling, E.E., Schwartz, R.C. 2006. Managing phosphorus-enriched soils:  effects of iron amendment on temporal dynamics of bioactive phosphorus pools [abstract]. World Congress of Soil Science, July 9-15, 2006, Philadelphia, PA. No. 154-11 [CD-ROM].MONITORING TILLAGE EFFECTS ON SOIL WATER DYNAMICS USING AUTOMATED TIME-DOMAIN REFLECTOMETRY

- (Abstract Only)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2006. Monitoring tillage effects on soil water dynamics using automated time-domain reflectometry [abstract]. 18th World Congress of Soil Science. Paper No. 116-30.ESTIMATION OF SOIL WATER CONTENT AND EVAPOTRANSPIRATION OF DRYLAND CROPS USING THE NEUTRON MOISTURE METER

- (Abstract Only)Moroke, T.S., Schwartz, R.C., Brown, K.W., Makore, J. 2006. Estimation of soil water content and evapotranspiration of dryland crops using the neutron moisture meter [abstract]. 18th World Congress of Soil Science. Paper No. 1-13.TILLAGE AND GRAZING EFFECTS ON SOIL PHYSICAL PROPERTIES AND CROP YIELD

- (Abstract Only)Baumhardt, R.L., Schwartz, R.C., Greene, L.W. 2006. Tillage and grazing effects on soil physical properties and crop yield [abstract]. In: Proceedings of the 28th Annual Southern Conservation Systems Conference, June 26-28, 2006, Amarillo, Texas. p. 283.PROCEEDINGS OF THE 28TH SOUTHERN CONSERVATION SYSTEMS CONFERENCE

- (Government Publication)Schwartz, R.C., Baumhardt, R.L., Bell, J.M. (editors). 2006. 28th Annual Southern Conservation Systems Conference, June 26-28, 2006, Amarillo, Texas. USDA-ARS Conservation and Production Research Laboratory Report No. 06-1, Bushland, Texas. 46 p.MONITORING TILLAGE EFFECTS ON SOIL WATER DYNAMICS USING AUTOMATED TIME-DOMAIN REFLECTOMETRY

- (Abstract Only)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2006. Monitoring tillage effects on soil water dynamics using automated time-domain reflectometry. In: Proceedings of the 28th Annual Southern Conservation Systems Conference, June 26-28, 2006, Amarillo, Texas. p. 284.CHANGES IN EXTRACTABLE PHOSPHORUS IN AMENDED SOILS DURING A GROWING SEASON

- (Proceedings)Schwartz, R.C., Bell, J.M. 2006. Changes in extractable phosphorus in amended soils during a growing season. In: Proceedings Great Plains Soil Fertility Conference, March 7-8, 2006, Denver, Colorado. p. 257-263.CATTLE GRAZING EFFECTS ON DRYLAND CROPPING SYSTEM PRODUCTIVITY AND SOIL PROPERTIES

- (Abstract Only)Baumhardt, R.L., Greene, L.W., Schwartz, R.C. 2005. Cattle grazing effects on dryland cropping system productivity and soil properties [abstract]. Agronomy Abstracts, ASA-CSSA-SSSA Annual Meeting, Salt Lake City, Utah. 2005 CDROM.TILLAGE EFFECTS ON NEAR SURFACE SOIL WATER DYNAMICS

- (Abstract Only)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2005. Tillage effects on near surface soil water dynamics [abstract]. Agronomy Abstracts, ASA-CSSA-SSSA Annual Meeting, Salt Lake City, Utah. 2005 CDROM.TIME DEPENDENT BIOACTIVE PHOSPHORUS EXTRACTABILITY IN CALCIUM- AND IRON-TREATED SOILS

- (Abstract Only)Dao, T.H., Codling, E.E., Schwartz, R.C. 2005. Time dependent bioactive phosphorus extractability in calcium- and iron-treated soils. [abstract]Agronomy Abstracts. CD-ROM.GREAT PLAINS CROPPING SYSTEM STUDIES FOR SOIL QUALITY ASSESSMENT

- (Peer Reviewed Journal)Varvel, G.E., Riedell, W.E., Deibert, E., Mcconkey, B., Tanaka, D.L., Vigil, M.F., Schwartz, R.C. 2006. Great plains cropping system studies for soil quality assessment. Renewable Agriculture and Food System 21:3-14.TIME DEPENDENT PHOSPHORUS EXTRACTABILITY IN CALCIUM- AND IRON-TREATED HIGH-PHOSPHORUS SOILS

- (Peer Reviewed Journal)Dao, T.H., Codling, E.E., Schwartz, R.C. 2005. Time dependent phosphorus extractability in calcium- and iron-treated high-phosphorus soils. Soil Science. 170:810-821.CROPPING SYSTEMS INFLUENCES ON SOIL PHYSICAL PROPERTIES IN THE GREAT PLAINS

- (Peer Reviewed Journal)Pikul Jr, J.L., Schwartz, R.C., Benjamin, J.G., Baumhardt, R.L., Merrill, S.D. 2006. Cropping systems influences on soil physical properties in the great plains. Renewable Agriculture and Food System. 21(1):15-25.CHANGES IN SOIL PROPERTIES AND ENZYMATIC ACTIVITIES FOLLOWING MANURE APPLICATIONS TO A RANGELAND

- (Peer Reviewed Journal)Bell, J.M., Robinson, C.A., Schwartz, R.C. 2006. Changes in soil properties and enzymatic activities following manure applications to a rangeland. Rangeland Ecology and Management. 59(3):314-320.PHOSPHORUS EXTRACTABILITY OF SOILS AMENDED WITH STOCKPILED AND COMPOSTED CATTLE MANURE

- (Peer Reviewed Journal)Schwartz, R.C., Dao, T.H. 2005. Phosphorus extractability of soils amended with stockpiled and composted cattle manure. Journal of Environmental Quality. 34:970-978.ASSIMILATION VERSUS ACCUMULATION OF MACRO- AND MICRONUTRIENTS IN SOILS: RELATIONS TO LIVESTOCK AND POULTRY FEEDING OPERATIONS

- (Peer Reviewed Journal)Cole, N.A., Schwartz, R.C., Todd, R.W. 2005. Assimilation versus accumulation of macro- and micronutrients in soils: relations to livestock and poultry feeding operations. Journal of Applied Poultry Research. 14:393-405.SOIL WATER DEPLETION AND ROOT DISTRIBUTION OF THREE DRYLAND CROPS

- (Peer Reviewed Journal)Moroke, T.S., Schwartz, R.C., Brown, K.W., Juo, A.S. 2005. Soil water depletion and root distribution of three dryland crops. Soil Science Society of America Journal. 69:197-205.ASSIMILATION VS. ACCUMULATION OF MACRO- AND MICRO-NUTRIENTS IN SOILS: RELATIONS TO LIVESTOCK FEEDING OPERATIONS

- (Proceedings)Cole, N.A., Schwartz, R.C., Todd, R.W. 2004. Assimilation vs. accumulation of macro- and micro-nutrients in soils: relations to livestock feeding operations. Extension Workshop held at the American Society of Animal Science Annual Meeting, July 26, 2004, St. Louis, Missouri. p. 36-51ASSIMILATION VS. ACCUMULATION OF MACRO- AND MICRO-NUTRIENTS IN SOILS: RELATIONS TO LIVESTOCK FEEDING OPERATIONS

- (Abstract Only)Cole, N.A., Schwartz, R.C., Todd, R.W. 2004. Assimilation vs. accumulation of macro- and micro-nutrients in soils: relations to livestock feeding operations [abstract]. Journal of Animal Science Supplement. 82(1):80.PHOSPHORUS EXTRACTABILITY OF SOILS AMENDED WITH STOCKPILED AND COMPOSTED CATTLE MANURE

- (Experiment Station)Schwartz, R.C. 2004. Phosphorus extractability of soils amended with stockpiled and composted cattle manure. Agricultural Research Service Publication. p. 1-44.TILLAGE EFFECTS ON NEAR SURFACE SOIL WATER DYNAMICS

- (Abstract Only)Schwartz, R.C., Baumhardt, R.L., Evett, S.R. 2004. Tillage effects on near surface soil water dynamics [abstract]. Agronomy Abstracts, ASA-CSSA-SSSA Annual Meeting, Seattle, Washington. 2004 CDROM.CRUSTS/STRUCTURAL

- (Other)Baumhardt, R.L., Schwartz, R.C. 2004. Crusts/Structural. In: Hillel, D., editor. Encyclopedia of Soils in the Environment. Oxford, UK: Elsevier Press. p. 347-356.GREAT PLAINS SOIL QUALITY ASSESSMENT PROJECT: LOCATIONS AND CROPPING SYSTEMS

- (Abstract Only)VARVEL, G.E., RIEDELL, W.E., TANAKA, D.L., VIGIL, M.F., SCHWARTZ, R.C., DEIBERT, E., MCCONKEY, B. 2003. GREAT PLAINS SOIL QUALITY ASSESSMENT PROJECT: LOCATIONS AND CROPPING SYSTEMS. AGRONOMY ABSTRACTS #872941.ASSESSMENT OF CROPPING SYSTEM IN THE GREAT PLAINS ON SOIL QUALITY:  PHYSICAL PROPERTIES

- (Abstract Only)Pikul Jr, J.L., Schwartz, R.C., Benjamin, J.G., Baumhardt, R.L., Merrill, S.D. 2003. Assessment of cropping system in the great plains on soil quality:  physical properties. Annual Meetings Abstracts, Soil Science Society Of America Annual Meeting.  November 2-6, 2003, Denver, CO.  CD-Rom.ASSESSMENT OF CROPPING SYSTEM EFFECTS ON SOIL QUALITY IN THE GREAT PLAINS: INTRODUCTION

- (Proceedings)VARVEL, G.E., RIEDELL, W.E., DEIBERT, E., MCCONKEY, B., TANAKA, D.L., VIGIL, M.F., SCHWARTZ, R.C. ASSESSMENT OF CROPPING SYSTEM EFFECTS ON SOIL QUALITY IN THE GREAT PLAINS: INTRODUCTION. Proceedings from Dynamic Cropping Systems:  Prinicples, Processes, and Challenges. pp. 197-204. 2003.SOIL PHYSICAL CHARACTERISTICS OF CONTRASTING CROPPING SYSTEMS IN THE GREAT PLAINS: PRELIMINARY FINDINGS

- (Proceedings)PIKUL JR, J.L., SCHWARTZ, R.C., BENJAMIN, J.G., BAUMHARDT, R.L., MERRILL, S.D. SOIL PHYSICAL CHARACTERISTICS OF CONTRASTING CROPPING SYSTEMS IN THE GREAT PLAINS: PRELIMINARY FINDINGS. DYNAMIC CROPPING SYSTEMS: PRINCIPLES, PROCESSES AND CHALLENGES. 2003. p. 205-209.SOIL WATER USE AND GRAIN YIELD OF THREE DRYLAND CROPS UNDER DIFFERING TILLAGE SYSTEMS

- (Abstract Only)MOROKE, T.S., SCHWARTZ, R.C., BROWN, K.W., JUO, A. SOIL WATER USE AND GRAIN YIELD OF THREE DRYLAND CROPS UNDER DIFFERING TILLAGE SYSTEMS. CD-ROM. AGRONOMY ABSTRACTS. 2002.THE IDSFIT CODE FOR INVERSE ESTIMATION OF FIELD HYDRAULIC PROPERTIES USING A DISC INFILTROMETER

- (Book / Chapter)THE IDSFIT CODE FOR INVERSE ESTIMATION OF FIELD HYDRAULIC PROPERTIES USING A DISC INFILTROMETER

- (Other)Soil hydraulic properties of cropland compared with reestablished and native grassland

- (Peer Reviewed Journal)Schwartz, R.C., Evett, S.R., Unger, P.W. 2003. Soil hydraulic properties of cropland compared with reestablished and native grassland. Geoderma 116:47-60.SOIL HYDRAULIC PROPERTIES OF CROPLAND COMPARED WITH REESTABLISHED AND NATIVE GRASSLAND

- (Peer Reviewed Journal)EFFECTS OF TALLER WHEAT RESIDUE AFTER STRIPPER HEADER HARVEST ON WIND RUN, IRRADIANT ENERGY INTERCEPTION, AND EVAPORATION

- (Proceedings)TILLAGE AND BEEF CATTLE MANURE EFFECTS ON SOIL NITROGEN IN A DRYLAND ROTATION

- (Proceedings)SCHWARTZ, R.C., BAUMHARDT, R.L., DAO, T.H. TILLAGE AND BEEF CATTLE MANURE EFFECTS ON SOIL NITROGEN IN A DRYLAND ROTATION. PROCEEDINGS OF THE GREAT PLAINS SOIL FERTILITY CONFERENCE. 2002. P. 66-71.INFLUENCE OF SOIL LAYERING ON INFILTRATION FROM A DISC SOURCE

- (Abstract Only)SOIL PHOSPHORUS LEVELS FOLLOWING MANURE AND COMPOST APPLICATIONS TO A      WHEAT-SORGHUM-FALLOW ROTATION

- (Abstract Only)LAND USE EFFECTS ON SOIL HYDRAULIC PROPERTIES

- (Proceedings)ESTIMATING PARAMETERS FOR A DUAL-POROSITY MODEL TO DESCRIBE                NON-EQUILIBRIUM, REACTIVE TRANSPORT IN A FINE-TEXTURED SOIL

- (Peer Reviewed Journal)FIELD ESTIMATION OF HYDRAULIC PROPERTIES USING A TENSION INFILTROMETER

- (Abstract Only)THE VERTICAL DISTRIBUTION OF A DYE TRACER IN A LAYERED SOIL

- (Peer Reviewed Journal)REACTIVE TRANSPORT OF BROMIDE IN TWO MOBILE REGIONS WITH LINEAR DIFFUSIVE  EXCHANGE

- (Abstract Only)
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