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 Columbia Plateau Conservation Research Center: Pendleton, OR
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ARS Home Pacific West Area Pendleton, Oregon Columbia Plateau Conservation Research Center People





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- Curtis Adams, Plant Physiologist
- Catherine Reardon, Microbiologist
- Vacant, Agronomist
- Hero Gollany, Soil Chemist
- Vacant, Hydrologist
- Stewart Wuest, Soil Scientist

Stewart B Wuest    Soil Scientist Stewart Wuest Educational Background BS degree in Agrarian Studies from the University of California in 1980, where I later earned an MS in Agronomy, and in 1991 a PhD in Soil Science.  Research Program: Soil Ecology  *See the Soil Ecology page for more information about current research projects.*     Publications Publications(Clicking on the reprint iconReprint Icon  will take you to the publication reprint.)Temporal variability is a major source of uncertainty in soil carbon measurements-(Peer Reviewed Journal)Soil carbon twelve years after live roots or application of plant residues or manure-(Peer Reviewed Journal) Wuest, S.B. 2023. Soil carbon twelve years after live roots or application of plant residues or manure. Soil Science Society of America Journal. 00:1-5. https://doi.org/10.1002/saj2.20597.Variation in soil organic carbon over time in no-till versus minimum tillage dryland wheat-fallow-(Peer Reviewed Journal) Wuest, S.B., Schillinger, W.F., Machado, S. 2023. Variation in soil organic carbon over time in no-till versus minimum tillage dryland wheat-fallow. Soil & Tillage Research. 229. Article 105677. https://doi.org/10.1016/j.still.2023.105677.Tillage timing to improve soil water storage in Mediterranean long fallow-(Peer Reviewed Journal) Wuest, S.B., Schillinger, W.F. 2022. Tillage timing to improve soil water storage in Mediterranean long fallow. Agricultural Water Management. 272. Article 107835. https://doi.org/10.1016/j.agwat.2022.107835.Enzyme activities distinguish long-term fertilizer effects under different soil storage methods-(Peer Reviewed Journal) Reardon, C.L., Klein, A.M., Melle, C.J., Hagerty, C.H., Klarer, E.R., Machado, S., Paulitz, T.C., Pritchett, L., Schlatter, D.C., Wuest, S.B. 2022. Enzyme activities distinguish long-term fertilizer effects under different soil storage methods. Applied Soil Ecology. 177. Article 104518. https://doi.org/10.1016/j.apsoil.2022.104518.Wheat stubble height effects on soil water capture and retention during long fallow-(Peer Reviewed Journal) Schillinger, W.F., Wuest, S.B. 2021. Wheat stubble height effects on soil water capture and retention during long fallow. Agricultural Water Management. 256. Article 107117. https://doi.org/10.1016/j.agwat.2021.107117.Soil microbial diversity and activity linked to crop yield and quality in a dryland organic wheat production system-(Other) Reardon, C.L., Hagerty, C., Klarer, E.R., Klein, A., Machado, S., Melle, C., Paulitz, T.C., Larry, P., Schlatter, D.C., Wuest, S.B. 2021. Soil microbial diversity and activity linked to crop yield and quality in a dryland organic wheat production system. Electronic Publication. Available: https://www.youtube.com/watch?v=E-sqaGpNfKo.Is volunteer wheat an economic weed in annual winter wheat production?-(Peer Reviewed Journal) Wuest, S.B., Barroso, J., Genna, N.G. 2021. Is volunteer wheat an economic weed in annual winter wheat production? Agronomy Journal. 113(2):1724-1732. https://doi.org/10.1002/agj2.20591.Electrostatic method to remove particulate organic matter from soil-(Peer Reviewed Journal) Wuest, S.B., Reardon, C.L. 2021. Electrostatic method to remove particulate organic matter from soil. The Journal of Visualized Experiments (JoVE). 168. Article e61915. https://doi.org/10.3791/61915.Minimum tillage and no-tillage winter wheat-summer fallow for low precipitation regions-(Peer Reviewed Journal) Wuest, S.B., Williams, J.D. 2021. No-tillage and minimum tillage winter wheat-summer fallow for low precipitation regions. Journal of Soil and Water Conservation. 76(3):246-255. https://doi.org/10.2489/jswc.2021.00062.Soil water infiltration after oilseed crop introduction into a Pacific Northwest  winter wheat-fallow rotation.-(Peer Reviewed Journal) Williams, J.D., Reardon, C.L., Wuest, S.B., Long, D.S. 2020. Soil water infiltration after oilseed crop introduction into a Pacific Northwest  winter wheat-fallow rotation. Journal of Soil and Water Conservation. 75(6):739-745. https://doi.org/10.2489/jswc.2020.00165.Soil water dynamics with spring camelina in a three-year rotation in Washington’s winter wheat-fallow region-(Peer Reviewed Journal) Wuest, S.B., Schillinger, W.F. 2019. Soil water dynamics with spring camelina in a three-year rotation in Washington’s winter wheat-fallow region. Soil Science Society of America Journal. 83(5):1525-1532. https://doi.org/10.2136/sssaj2019.05.0157.Soil microbial and chemical properties of a minimum and conventionally-tilled wheat-fallow system-(Peer Reviewed Journal) Reardon, C.L., Wuest, S.B., Melle, C.J., Klein, A.M., Williams, J.D., McCallum, J.D., Barroso, J., Long, D.S. 2019. Soil microbial and chemical properties of a minimum and conventionally-tilled wheat-fallow system. Soil Science Society of America Journal. 83(4):1100-1110. https://doi.org/10.2136/sssaj2018.09.0344.First leaf emergence force of three deep-planted winter wheat cultivars-(Peer Reviewed Journal) Lutcher, L.K., Wuest, S.B., Johlke, T.R. 2019. First leaf emergence force of three deep-planted winter wheat cultivars. Crop Science. 59(2):772-777. https://doi.org/10.2135/cropsci2018.08.0495.Soil wet aggregate stability in dryland Pacific Northwest intensified crop rotations-(Peer Reviewed Journal) Williams, J.D., Reardon, C.L., Wuest, S.B., Long, D.S. 2018. Soil wet aggregate stability in dryland Pacific Northwest intensified crop rotations. Soil Science Society of America Journal. 82:455-462. doi:10.2136/sssaj2017.08.0302.Surface effects on water storage under dryland summer fallow, a lysimeter study-(Peer Reviewed Journal) Wuest, S.B. 2017. Surface effects on water storage under dryland summer fallow, a lysimeter study. Vadose Zone Journal. 17(1). doi:10.2136/vzj2016.09.0078.Rapid quantification of soilborne pathogen communities in wheat-based long-term field experiments-(Peer Reviewed Journal) Smiley, R.W., Machado, S., Rhinhart, K., Reardon, C.L., Wuest, S.B. 2016. Rapid quantification of soilborne pathogen communities in wheat-based long-term field experiments. Plant Disease. 100(8):1692-1708. doi: 10.1094/PDIS-09-15-1020-RE.Surface and root inputs produce different carbon to phosphorus ratios in soil-(Peer Reviewed Journal) Wuest, S.B., Reardon, C.L. 2016. Surface and root inputs produce different carbon to phosphorus ratios in soil. Soil Science Society of America Journal. 80:463-471.Soil amendments yield persisting effects on the microbial communities--a 7-year study-(Peer Reviewed Journal) Reardon, C.L., Wuest, S.B. 2016. Soil amendments yield persisting effects on the microbial communities--a 7-year study. Applied Soil Ecology. 101:107-116. doi: 10.1016/j.apsoil.2015.12.013.Seasonal variation in soil bulk density, organic nitrogen, available phosphorus, and pH-(Peer Reviewed Journal) Wuest, S.B. 2015. Seasonal variation in soil bulk density, organic nitrogen, available phosphorus, and pH. Soil Science Society of America Journal. 79:1188-1197.Soil water and water use efficiency in no-tillage and sweep tillage winter wheat production in northeastern Oregon-(Peer Reviewed Journal) Williams, J.D., Wuest, S.B., Robertson, D.S. 2015. Soil water and water use efficiency in no-tillage and sweep tillage winter wheat production in northeastern Oregon. Soil Science Society of America Journal. doi: 10.2136/sssaj2014.12.0494.Wide row spacing for deep-furrow planting of winter wheat-(Peer Reviewed Journal) Schillinger, W.F., Wuest, S.B. 2014. Wide row spacing for deep-furrow planting of winter wheat. Field Crops Research. 168:57-64.Seasonal variation in soil organic carbon-(Peer Reviewed Journal) Wuest, S.B. 2014. Seasonal variation in soil organic carbon. Soil Science Society of America Journal. 78:1442-1447.Soil and water conservation in the Pacific Northwest through no-tillage and intensified crop rotations-(Peer Reviewed Journal) Williams, J.D., Wuest, S.B., Long, D.S. 2014. Soil and water conservation in the Pacific Northwest through no-tillage and intensified crop rotations. Journal of Soil and Water Conservation. 69(6):495-504.Soil water dynamics in continuous winter wheat grown in the semiarid Pacific Northwest, U.S.A.-(Peer Reviewed Journal) Williams, J.D., Wuest, S.B. 2014. Soil water dynamics in continuous winter wheat grown in the semiarid Pacific Northwest, U.S.A.. Soil Science Society of America Journal. 78(2):571-578.Diazotroph community structure and abundance in wheat-fallow and wheat-pea crop rotations-(Peer Reviewed Journal) Reardon, C.L., Gollany, H.T., Wuest, S.B. 2013. Diazotroph community structure and abundance in wheat-fallow and wheat-pea crop rotations. Soil Biology and Biochemistry. 69:406-412.An array for measuring detailed soil temperature profiles-(Peer Reviewed Journal) Wuest, S.B. 2013. An array for measuring detailed soil temperature profiles. Soil Science Society of America Journal. 77(2):427-431.Soil water potential requirement for germination of winter wheat-(Peer Reviewed Journal) Wuest, S.B., Lutcher, L.K. 2013. Soil water potential requirement for germination of winter wheat. Soil Science Society of America Journal. 77: 279-283. doi: 10.2136/sssaj2012.0110.Sorption of tannin and related phenolic compounds and effects on extraction of soluble-N in soil amended with several carbon sources-(Peer Reviewed Journal) Halvorson, J.J., Gollany, H.T., Kennedy, A.C., Hagerman, A.E., Gonzalez, J.M., Wuest, S.B. 2012. Sorption of tannin and related phenolic compounds and effects on extraction of soluble-N in soil amended with several carbon sources. Agriculture. 2:52-72.One-pass tillage for summer fallow under arid summer conditions-(Peer Reviewed Journal) Wuest, S.B., Corp, M.K. 2011. One-pass tillage for summer fallow under arid summer conditions. Crop Management. DOI: 10.1094/CM-2011-1223-03-RS.Capture of Plateau Runoff by GPS Guided Drill Seed Operation-(Peer Reviewed Journal) Williams, J.D., Long, D.S., Wuest, S.B. 2012. Capture of Plateau Runoff by GPS Guided Seed Drill Operation. Journal of Soil and Water Conservation. 66(6):355-361.Evaporation from high residue no-till versus tilled fallow in a dry summer climate-(Peer Reviewed Journal) Wuest, S.B., Schillinger, W.F. 2011. Evaporation from high residue no-till versus tilled fallow in a dry summer climate. Soil Science Society of America Journal. 75(4):1512-1518.Tillage and no-tillage conservation effectiveness in the intermediate precipitation zone of the inland Pacific Northwest, United States-(Peer Reviewed Journal) Williams, J.D., Wuest, S.B. 2011. Tillage and no-tillage conservation effectiveness in the intermediate precipitation zone of the inland Pacific Northwest, United States. Journal of Soil and Water Conservation. 66(4):242-249.Comparison of Fallow Tillage Methods in the Intermediate Rainfall Inland Pacific Northwest Environments-(Peer Reviewed Journal) Riar, D.S., Ball, D.A., Yenish, J.P., Wuest, S.B., Corp, M.K. 2010. Comparison of Fallow Tillage Methods in the Intermediate Rainfall Inland Pacific Northwest Environments. Agronomy Journal. 102:1664-1673.One Tillage Pass Can Produce Highly Effective Tilled Summer Fallow-(Experiment Station) Wuest, S.B., Schillinger, W.F., Corp, M.K. 2010. One Tillage Pass Can Produce Highly Effective Tilled Summer Fallow. Dryland Research Report 101, Columbia Basin Agricultural Research Center, Oregon State University - Agricultural Experiment Station, Adams, Oregon. 7pp.Tillage depth and timing effects on soil water profiles in two semiarid soils-(Peer Reviewed Journal) Wuest, S.B. 2010. Tillage depth and timing effects on soil water profiles in two semiarid soils. Soil Science Society of America Journal. 74:1701-1711. doi:10.2136/sssaj2010.0046Phosphorus Fertilization of Late-Planted Winter Wheat into No-Till Summer Fallow-(Peer Reviewed Journal) Lutcher, L.K., Schillinger, W.F., Christensen, N.W., Wuest, S.B., Wysocki, D. 2010. Phosphorus Fertilization of Late-Planted Winter Wheat into No-Till Summer Fallow. Agron. J. 102:868-874.Contour Planting: A Strategy to Reduce Soil Erosion on Steep Slopes-(Proceedings) Long, D.S., Wuest, S.B., Williams, J.D., Rauwendall, R., Bailey, M.J. 2010. Contour Planting: A Strategy to Reduce Soil Erosion on Steep Slopes. In R. Khosla (ed.) 10th International Conference on Precision Agriculture Abstracts & Proceedings.Upland Drainage Response to No-till Winter Wheat Production-(Proceedings) Williams, J.D., Robertson, D.S., Wuest, S.B. 2010. Upland Drainage Response to No-till Winter Wheat Production. In proceedings of the 2nd Joint Federal Interagency Conference - 4th Federal Interagency Hydrologic Modeling Conference and of the 9th Federal Interagency Sedimentation Conference, June 27-July 1, 2010, Las Vegas, NV. On CD.Do High Velocity Water Flow Paths Develop Over Time Under No-till?-(Experiment Station) Wuest, S.B., Johlke, T.R., Matlock, W. 2009. Do High Velocity Water Flow Paths Develop Over Time Under No-till? Columbia Basin Agricultural Research Annual Report. Steven Petrie and Dan Long eds. Special Report 1091, Agricultural Experiment Station, Oregon State University.Comparison of Preferential Flow Paths to Bulk Soil in a Weakly Aggregated Silt Loam Soil-(Peer Reviewed Journal) Wuest, S.B. 2009. Comparison of Preferential Flow Paths to Bulk Soil in a Weakly Aggregated Silt Loam Soil. Vadose Zone J. 8:623-627.Evaluation of Fallow Methods Study: No-till, Reduced Tillage, & Traditional Fallow-(Abstract Only) Wuest, S.B., Corp, M.K. 2008. Evaluation of Fallow Methods Study: No-till, Reduced Tillage, & Traditional Fallow. Agronomy Abstracts.CORRECTION OF BULK DENSITY AND SAMPLING METHOD BIASES USING SOIL MASS PER UNIT AREA-(Peer Reviewed Journal) Wuest, S.B. 2009. Correction of bulk density and sampling method biases using soil mass per unit area. Soil Sci. Soc. Am. J. 73:312-316COMPARISON OF RUNOFF AND SOIL EROSION FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS-(Experiment Station) Wuest, S.B., Williams, J.D., Gollany, H.T., Siemens, M.C., Long, D.S. 2008. Comparison of runoff and soil erosion from no-till and inversion tillage production systems. Columbia Basin Agricultural Research Annual Report.COMPARISON OF RUNOFF, SOIL EROSION, AND WINTER WHEAT YIELDS FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS IN NORTHEASTERN OREGON-(Peer Reviewed Journal) Williams, J.D., Gollany, H.T., Siemens, M.C., Wuest, S.B., Long, D.S. 2009. COMPARISON OF RUNOFF, SOIL EROSION, AND WINTER WHEAT YIELDS FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS IN NORTHEASTERN OREGON. Journal of Soil and Water Conservation 64(1):42-53.SMALL INCREMENT ELECTRIC SOIL SAMPLER-(Peer Reviewed Journal) Wuest, S.B., Schillinger, W.F. 2008. Small increment electric soil sampler. Soil Sci. Soc. Am. J. 72: 1554-1556An Improved Method for Soil Sampling at Small Increments-(Abstract Only) Wuest, S.B., W.F. Schillinger. 2008. An Improved Method for Soil Sampling at Small Increments. In 2008 Field Day Abstracts: Highlights of Research Progress. Dept. Of Crop and Soil Sciences Tech. Report 08-1, WSU, Pullman, WA.SURFACE VERSUS INCORPORATED RESIDUE EFFECTS ON WATER-STABLE  AGGREGATES-(Peer Reviewed Journal) Wuest, S.B. 2007. Surface versus incorporated residue effects on water-stable  aggregates. Soil & Tillage Research 96 (2007) 124-130.VAPOUR IS THE PRINCIPAL SOURCE OF WATER IMBIBED BY SEED IN UNSATURATED SOILS-(Review Article) Wuest, S.B. 2007. Vapour is the principal source of water imbibed by seed in unsaturated soils. Seed Science Research.  (2007) 17, 3-9.EFFECTS OF TILLAGE ON WATER INFILTRATION-(Experiment Station) Wuest, S.B., Williams, J.D., Johlke, T.R. 2006. Effects of tillage on water infiltration. Dryland Agricultural Research Annual Report. Oregon Agric. Exp. Sta. Special Report 1068.TILLAGE AND PERENNIAL GRASS EFFECTS ON PONDED INFILTRATION FOR SEVEN SEMI-ARID LOESS SOILS.-(Peer Reviewed Journal) Wuest, S.B., Williams, J.D., Gollany, H.T. 2006. Tillage and perennial grass effects on ponded infiltration for seven semi-loess soils. Journal of Soil and Water Conservation, Vol. 61(4)218-223.MECHANISMS ALLOWING INCREASED WATER INFILTRATION CAPACITY WITH REDUCED TILLAGE IN A SEMI-ARID LOESS SOIL-(Abstract Only) Wuest, S.B. 2005. Mechanisms allowing increased water infiltration capacity with reduced tillage in a semi-arid loess soil. Abstracts: 2005 International Annual Meetings, American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. Madison, WI.BIAS IN PONDED INFILTRATION ESTIMATES DUE TO SAMPLE VOLUME AND SHAPE-(Peer Reviewed Journal) Wuest, S.B. 2005. Bias in ponded infiltration estimates due to sample volume and shape. Vadose Zone Journal. 4:1183-1190.FROM ANECDOTE TO REAL DATA: HOW RANDOMIZATION AND REPLICATION WORK-(Proceedings) Wuest, S.B. 2005. From anecdote to real data: how randomization and replication work. Information Agriculture Conference.LONG-TERM EXPERIMENTS AT CBARC-PENDLETON, 2004-(Experiment Station) Machado, S., Rhinhart, K., Petrie, S., Wuest, S.B., Correa, R.F., Johlke, T.R. 2005. Long-term experiments at CBARC-Pendleton, 2004. In 2005 Dryland Agricultural Research Annual Report, p.73-87. DA. Long, S.E. Petrie and P.M. Frank, eds. SR 1061. Corvallis, OR: Oregon State Univeristy Agric. Exp. Station in cooperation with USDA-ARS, Pendleton, OR.EFFECTS OF TILLAGE AND RESIDUE MANAGEMENT ON SEED-ZONE TEMPERATURE AND MOISTURE: FIELD INVESTIGATION AND SHAW MODELING-(Other) Qiu, H., Williams, J.D., Wu, J., Flerchinger, G.N., Oviatt, H.S., Wuest, S.B., Mccool, D.K. 2005. Effects of tillage and residue management on seed-zone temperature and moisture: field investigation and shaw modeling. American Society of Agri Engineers Special Meetings and Conferences Papers.ROTARY SUBSOILING NEWLY PLANTED WINTER WHEAT FIELDS TO IMPROVE INFILTRATION IN FROZEN SOIL-(Peer Reviewed Journal) Williams, J.D., Wuest, S.B., Schillinger, B.F., Gollany, H.T. 2006. Rotary subsoiling newly planted winter wheat fields to improve infiltration in frozen soil. Soil & Tillage Research 86 (2006) 141-151.USING THE SHAW MODEL TO EVALUATE THE EFFECTS OF TREATMENTS ON SEED-ZONE TEMPERATURE AND MOISTURE-(Other) Qiu, H., Wu, J., Williams, J.D., Oviatt, H.S., Wuest, S.B. 2005. Using the shaw model to evaluate the effects of treatments on seed-zone temperature and moisture. Pacific Northwest Direct Seed Conference Proceedings. (Poster)ORGANIC MATTER ADDITION, N, AND RESIDUE BURNING EFFECTS ON INFILTRATION, BIOLOGICAL, AND PHYSICAL PROPERTIES OF AN INTENSIVELY TILLED SILT-LOAM SOIL.-(Peer Reviewed Journal) Wuest, S.B., Caesar-TonThat, T.C., Wright, S.F., Williams, J.D. 2005. Organic matter addition, N, and residue burning effects on infiltration, biological, and physical properties of an intensively tilled silt-loam soil. Soil & Tillage Research 84 (2005) 154-167.VISUAL ASSESSMENT OF PREFERENTIAL FLOW AND COMPARISON TO PONDED INFILTRATION RATES IN A SILT LOAM SOIL-(Abstract Only) Wuest, S.B. 2004. Visual assessment of preferential flow and comparison to ponded infiltration rates in a silt loam soil. ASA-CSSA-SSSA-CSSS Annual Meetings Abstracts 2004. (3 Nov. 04, Seattle, WA) Abstract no. 4478 ASA, Madison, WI. (CD-ROM)ROTARY SUBSOILING TO REDUCE EROSION AND IMPROVE INFILTRATION IN NEWLY PLANTED WINTER WHEAT AFTER SUMMER FALLOW-(Experiment Station) Williams, J.D., Wuest, S.B., Schillinger, W.F., Gollany, H.T. 2004. Rotary subsoiling to reduce erosion and improve infiltration in newly planted winter wheat after summer fallow. IN: Special Report 1054, 2004 Columbia Basin Agricultural Research Center Annual Report. Oregon State University, 8 june 2004, Adams, OR.ROTARY SUBSOILING EFFECTIVENESS ON RUNOFF AND EROSION IN DRYLAND WHEAT, WASHINGTON-(Proceedings) Williams, J.D., Wuest, S.B., Schillinger, W.F., Gollany, H.T., Mccool, D.K. 2003. Rotary subsoiling effectiveness on runoff and erosion in dryland wheat, Washington. IN: American Water Resources Association 2003 Conference Proceedings, American Water Resources Association, San Diego, CA, Nov. 3, 2003. (Published on CD-ROM, no page number assignment).SUBSOILING INFLUENCE ON NUTRIENTS IN RUNOFF FOLLOWING RAINFALL SIMULATION-(Abstract Only) GOLLANY, H.T., WUEST, S.B., WILLIAMS, J.D., SCHILLINGER, W.F., BAKER, A.A., ROBERTSON, D.S. SUBSOILING INFLUENCE ON NUTRIENTS IN RUNOFF FOLLOWING RAINFALL SIMULATION. AGRONOMY ABSTRACTS. 2003.SEED-SOIL CONTACT AND THE ROLE OF VAPOR IN GERMINATION-(Other) WUEST, S.B. SEED-SOIL CONTACT AND THE ROLE OF VAPOR IN GERMINATION. COLUMBIA BASIN AGRICULTURAL RESEARCH ANNUAL REPORT. 2003.SOIL NUTRIENT, TEMPERATURE, AND MOISTURE DYNAMICS: COMPARING NO-TILL TO TILLED WITH AND WITHOUT RESIDUE COVER-(Abstract Only) WUEST, S.B. SOIL NUTRIENT, TEMPERATURE, AND MOISTURE DYNAMICS: COMPARING NO-TILL TO TILLED WITH AND WITHOUT RESIDUE COVER. SOIL ECOLOGY SOCIETY NINTH BIANNUAL INTERNATION CONFERENCE ABSTRACTS. 2003.EFFECTS OF THE RESIDUE MANAGEMENT WHEEL AND OTHER RESIDUE MANAGEMENT STRATEGIES ON DIRECT SEED DRILL PERFORMANCE-(Proceedings) SIEMENS, M.C., WILKINS, D.E., CORREA, R.F., WUEST, S.B. EFFECTS OF THE RESIDUE MANAGEMENT WHEEL AND OTHER RESIDUE MANAGEMENT STRATEGIES ON DIRECT SEED DRILL PERFORMANCE.  IN PROCEEDINGS OF THE NORTHWEST DIRECT SEED CROPPING SYSTEMS CONFERENCE AND TRADE SHOW. PP. 75-89. PASCO, WA, 8-10 JAN 2003.CARBON DIOXIDE FLUX MEASUREMENT DURING SIMULATED TILLAGE-(Peer Reviewed Journal) WUEST,S.B., DURR,D., ALBRECHT,S.L., CARBON DIOXIDE FLUX MEASUREMENT DURING SIMULATED TILLAGE, AGRONOMY JOURNAL, 95:715-718 (2003).CHANGES IN SOIL CARBON IN SEMIARID DRYLAND FARMING SYSTEMS IN THE PACIFIC NORTHWEST-(Abstract Only) ALBRECHT, S.L., WUEST, S.B., WILKINS, D.E. CHANGES IN SOIL CARBON IN SEMIARID DRYLAND FARMING SYSTEMS IN THE PACIFIC NORTHWEST. AGRONOMY ABSTRACTS. 2002.A NEW PERSPECTIVE ON WATER FLOW FROM SOIL TO SEED:  THE ROLE OF VAPOR-(Other) WUEST, S.B. A NEW PERSPECTIVE ON WATER FLOW FROM SOIL TO SEED:  THE ROLE OF VAPOR. AGRONOMY ABSTRACTS. 2002.WATER TRANSFER FROM SOIL TO SEED:  THE ROLE OF VAPOR TRANSPORT-(Peer Reviewed Journal)ECOLOGY OF UNTILLED CROPPING SYSTEMS IN THE SEMI-ARID PACIFIC NORTHWEST-(Abstract Only)SOIL BIOPORE ESTIMATION: EFFECTS OF TILLAGE, NITROGEN AND PHOTOGRAPHIC     RESOLUTION-(Peer Reviewed Journal)EARTHWORM, INFILTRATION, AND TILLAGE RELATIONSHIPS IN A DRYLAND PEA-WHEAT  ROTATION-(Peer Reviewed Journal)NO-TILL INFLUENCE ON HYDROLOGY AND STREAM MORPHOLOGY IN DRYLAND CROP AREA-(Experiment Station)HOW TILLAGE AND CROPPING SYSTEMS CHANGE SOIL ORGANIC MATTER. INLAND PACIFICNORTHWEST RESEARCH.-(Proceedings)EARTHWORM POPULATIONS UNDER FOUR TILLAGE LEVELS IN A WHEAT/PEA ROTATION-(Abstract Only)MANAGING AND DISTRIBUTING RESIDUE FOR CONSERVATION TILLAGE IN THE PACIFIC NORTHWEST-(Proceedings) SIEMENS, M.C., WILKINS, D.E., WUEST, S.B. MANAGING AND DISTRIBUTING RESIDUE FOR CONSERVATION TILLAGE IN THE PACIFIC NORTHWEST. ASAE ANNUAL INTERNATIONAL MEETING. ASAE PAPER 001005, 14 PP. ST. JOSEPH, MICH.: ASAE. 2000.DIRECT SEEDING INFLUENCE ON HYDROLOGY AND STREAM MORPHOLOGY IN DRYLAND CROP AREAS-(Proceedings)CROP RESIDUE POSITION AND INTERFERENCE WITH WHEAT SEEDLING DEVELOPMENT-(Peer Reviewed Journal)MANAGING AND DISTRIBUTING RESIDUE FOR DIRECT SEED SYSTEMS-(Proceedings) IN PROCEEDINGS OF THE NORTHWEST DIRECT SEED CROPPING SYSTEMS CONFERENCE AND TRADE SHOW. PP101-109. PENDLETON, OR, 4-6 JAN 2000.SOIL CARBON IN LONG-TERM PACIFIC NORTHWEST AGROECOSYSTEMS-(Abstract Only)CROP RESIDUE AND PLANT HEALTH - RESEARCH OVERVIEW AND IMPLICATIONS FOR     NO-TILL-(Experiment Station)VAPOR VERSUS SEED-SOIL CONTACT IN THE GERMINATION OF WHEAT-(Peer Reviewed Journal)DOCUMENTING SOIL QUALITY CHANGES IN THE TRANSITION TO NO-TILL: 16 YEARS    NO-TILL VERSUS FIRST YEAR NO-TILL AND CONVENTIONAL TILLAGE NEAR PENDLETON, OREGON-(Proceedings)THE TWO R'S OF ON-FARM RESEARCH-(Proceedings)VAPOR VERSUS LIQUID IMBIBITION IN THE GERMINATION OF WHEAT-(Abstract Only)CARBON AND NITROGEN MINERALIZATION DURING WHEAT ROOT DECOMPOSITION-(Abstract Only)SEEDING PEAS AND BARLEY INTO HEAVY CEREAL RESIDUE-(Experiment Station)


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