This collection houses articles and publications generated by the faculty of the Department of Agronomy, Horticulture and Plant Science

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Submissions from 2006

A Better Understanding on How Soils and Water Interact to Influence N Responses, Ki-In Kim, David Clay, Gregg Carlson, and Sharon Clay

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Sorption-desorption of Imidacloprid and its Metabolites in Soil and Vadose Zone Materials, Sharon V. Papiernik, William C. Koskinen, Lucia Cox, Pamela J. Rice, Sharon A. Clay, Nancy R. Werdin-Pfisterer, and Kristen A. Norberg

Submissions from 2005

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Clouds Influence Precision and Accuracy of Ground‐based Spectroradiometers, Jiyual Chang, Sharon A. Clay, David E. Clay, David Aaron, Dennis Helder, and Kevin Dalsted

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Soil Organic Carbon Maintenance in Corn (Zea mays L.) and Soybean (Glycine max L.) as Influenced by Elevation Zone, David E. Clay, Gregg Carlson, Sharon Clay, J. Chang, and D. D. Malo

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13C Discrimination in Corn Grain Can Be Used to Separate and Quantify Yield Losses Due to Water and Nitrogen Stresses, David E. Clay, Sharon A. Clay, Drew J. Lyon, and Juerg M. Blumenthal

Characterizing Water and N Stress in Corn Using Remote Sensing., David Clay, Ki-In Kim, J. Chang, and S. Clay

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Can 13C Discrimination in Corn (Zea mays) Grain be Used to Characterize Intra-plant Competition for Water and Nitrogen, D. E. Clay, S. A. Clay, Drew J. Lyon, and Juerg M. Blumenthal

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Growth and Fecundity of Several Weed Species in Corn and Soybean, S. A. Clay, J. Kleinjan, D. E. Clay, F. Forcella, and W. Batchelor

The Influence of Shade on Corn and Velvetleaf, Sharon A. Clay, Jon Kleinjan, David E. Clay, Zhoujing Liu, and John Pulls

Within-field Spatial Variation of Northern Corn Rootworms, Michael Ellsbury, Sharon Clay, David Clay, and Douglas Malo

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Interactions Among Western Corn Rootworm (Coleoptera: Chrysomelidae), Yellow Foxtail, and Corn, M. M. Ellsbury, K. R. Banken, S. A. Clay, and F. Forcella

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The Influence of Antimicrobial Chemicals on Herbicide Degrading Organisms, Aaron Hoese, Susan Gibson, Volker Brozel, and Sharon A. Clay

Yield Environment Influence on N Response, Ki-In Kim, David Clay, Gregg Carlson, and Sharon Clay

Submissions from 2004

Soybean Foliage Residues of Dicamba and 2, 4-D and Correlation to Application Rates and Yield, Shane M. Anderson, S. A. Clay, L. J. Wrage, and D. Matthees

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Defining Yield Goals and Management Zones to Minimize Yield and Nitrogen and Phosphorus Fertilizer Recommendation Errors, Jiyul Chang, David E. Clay, Charles G. Carlson, Cheryl L. Reese, Sharon A. Clay, and Mike M. Ellsbury

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Detecting Weed-free and Weed-infested Areas of a Soybean Field Using Near-infrared Spectral Data, Jiyul Chang, Sharon A. Clay, David E. Clay, and Kevin Dalsted

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Bromide and Nitrate Movement Through Undisturbed Soil Columns, D. E. Clay, Z. Zheng, Z. Liu, and T. P. Trooien

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Development of a Method for Evaluating the Yield Goal Approach, K. Kim, D. E. Clay, C. G. Carlson, and S. A. Clay

Submissions from 2003

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Different Techniques to Identify Management Zones Impact Nitrogen and Phosphorus Sampling Variability, Jiyul Chang, David E. Clay, Charles G. Carlson, Sharon A. Clay, Douglas D. Malo, Robert Berg, Jon Kleinjan, and William Wiebold

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Corn (Zea mays L.) Yield Prediction Using Multispectral and Multidate Reflectance, Jiyul Chang, David E. Clay, Kevin Dalsted, Sharon Clay, and Mary O' Neill

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Carbon-13 Discrimination Can be Used to Evaluate Soybean Yield Variability, D. E. Clay; S. A. Clay; J. Jackson; K. Dalsted; C. Reese; Z. Liu; D. D. Malo; and C. G, Carlson

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Field Processes and Applications-15 Comparison of Atrazine and Alachlor Sorption, Mineralization, and Degradation Potential in Surface and Aquifer Sediments, Sharon A. Clay, David E. Clay, and Thomas B. Moorman

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Effect of Variability of Soil Properties as a Function of Depth on Pesticide Sorption-Desorption, Sharon A. Clay and William C. Koskinen

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Atrazine Sorption and Desorption as Affected by Aggregate Size, Particle Size, and Soil Type, Thomas M. DeSutter, Sharon A. Clay, and David E. Clay

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Characterization of Soybean Yield Variability Using Crop Growth Models and 13C Discrimination, Joel O. Paz, William D. Batchelor, David E. Clay, Sharon A. Clay, and Cheryl Reese

Submissions from 2002

Discrimination and Remote Sensing can be Used to Evaluate Soybean Yield Variability, D. E. Clay, S. A. Clay, J. Jackson, K. Dalsted, C. Reese, Z. Liu, D. D. Malo, and C. G. Carlson

Banding of Pesticides, Sharon A. Clay

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Scouting for Weeds, Sharon Clay and Gregg Johnson

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Spatial Variability of Atrazine and Alachlor Efficacy and Mineralization in an Eastern South Dakota Field, Zhuojing Liu, Sharon A. Clay, and David E. Clay

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The Impact of Intercropping Annual ‘Sava’snail Medic on Corn Production, Hugh Smeltekop, David E. Clay, and Sharon A. Clay

Submissions from 2001

Genetic Variation in Aphthona nigriscutis Foudras (Coleoptera: Chrysomelidae) Populations Introduced into the United States to Biologically Control Leafy Spurge, Mark A. Brnkman, Tracie A. Jenkins, Nels H. Granholm, and Sharon A. Clay

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Factors Influencing Spatial Variability of Soil Apparent Electrical Conductivity, D. E. Clay, J. Chang, D. D. Malo, C. G. Carlson, C. Reese, S. A. Clay, M. Ellsbury, and B. Berg

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Spatial Variability of 13C Isotopic Discrimination in Corn, D. E. Clay, S. A. Clay, Z. Liu, and C. Reese

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Herbicide Concentration and Dissipation from Surface Wind-erodible Soil, Sharon A. Clay, Thomas M. DeSutter, and David E. Clay

Vertical Accuracy of Two Differentially Corrected Global Positioning Satellite Systems, D. P. Johnson, D. E. Clay, C. G. Carlson, K. W. Strange, S. A. Clay, and D. D. Malo

Submissions from 2000

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Precision Farming Protocols. Part 2. Comparison of Sampling Approaches for Precision Phosphorus Management, David E. Clay, Jiyul Chang, C. Gregg Carlson, Doug Malo, Sharon A. Clay, and Mike Ellsbury

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Herbicide Movement and Dissipation at Four Midwestern Sites, S. A. Clay, R. H. Dowdy, J. A. Lamb, J. l. Anderson, B. Lowery, R. E. Knight, and D. E. Clay

Herbicide Management to Maintain Environmental Quality, Sharon Clay

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Herbicide Management to Maintain Environmental Quality: Lessons to be Learned from North American herbicide Management Practices, Sharon A. Clay

Use of GIS/GPS Systems in IPM: Progress and Reality, M. M. Ellsbury, S. A. Clay, S. J. Fleischer, L. D. Chandler, and S. M. Schneider

Spatial Distribution of Soil-dwelling Stages of Northern Corn Rootworm in Relation to Measurable Soil and Crop Characteristics, M.M. Ellsbury, D.D. Malo, D.E. Clay, S. A. Clay, and C. G. Carlson

Using Spectral Reflectance and Remote Sensing to Compare Soybeans (Glycine max) and Green Foxtail (Setaria viridis), C. Gustafson, S. A. Clay, D. Clay, C. G. Carlson, K. Dalsted, and M. M. Ellsbury

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Biological control of Canada thistle (Cirsium arvense) in South Dakota, Z. Liu, S. A. Clay, and M. Brinkman

Hillslope Chronosequence of Electromagnetic Induction Readings as Influenced by Selected Soil Properties, W. A. Nugteren, D. D. Malo, T. E. Schumacher, C. G. Carlson, D. E. Clay, C. G. Carlson, D. E. Clay, S. A. Clay, K.J. Dalsted, and M. M. Ellsbury

Integrating Remote Sensing (Aerial Images), Geographic Information System (GIS), and Global Positioning System (GPS) Data: the Case of Mapping Weeds in a Moody County (South Dakota) Field, P. Thanapura, S. A. Clay, D. E. Clay, C. Cole, K. Dalsted, and M O'Neill

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Herbicide Strategies for Managing Kochia (Kochia scoparia) Resistant to ALS-Inhibiting Herbicides in Wheat (Triticum aestivum) and Soybean (Glycine max), Ryan Wolf, Sharon A. Clay, and Leon J. Wrage

Submissions from 1999

Reproductive Status of Flea Beetles in North Dakota and South Dakota, Mark A. Brinkman and Sharon A. Clay

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Influence of Deleterious Rhizobacteria on Leafy Spurge (Euphorbia esula) Roots, Mark A. Brinkman, Sharon A. Clay, and Robert J. Kremer

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Weed Detection in Field Corn Using High Resolution Multispectral Digital Imagery and Field Scouting, Brian L. Broulik, K. J. Dalsted, S. A. Clay, D. E. Clay, C. G. Carlson, M. M. Ellsbury, and D. D. Malo

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Evaluation of General Weed Management (GWM) Model: A Computerized Bioeconomic Weed Decision Aid for Row Crops, Brian L. Broulik, C. L. Reese, D. E. Clay, and M. M. Ellsbury

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Precision Farming Protocols: Part 1. Grid Distance and Soil Nutrient Impact on the Reproducibility of Spatial Variability Measurements, Jiyul Chang, David E. Clay, C. Greg Carlson, Douglas D. Malo, Sharon A. Clay, John Lee, and Mike Ellsbury

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Systematic Evaluation of Precision Farming Soil Sampling Requirements, David E. Clay, C. G. Carlson, J. Chang, S. A. Clay, D. D. Malo, M. M. Ellsbury, and John Lee

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Targeting Precision Agrichemical Applications to Increase Productivity, S. A. Clay, G.J. Lems, D. E. Clay, M. M. Ellsbury, and F. Forcella

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Sampling Weed Spatial Variability on a Fieldwide Scale, Sharon A. Clay, G. Jason Lems, Frank Forcella, Michael M. Ellsbury, C. Gregg Carlson, and David E. Clay

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Spatial Variability in Corn Rootworm Distribution in Relation to Spatially Variable Soil Factors and Crop Condition, M.M. Ellsbury, W. D. Woodson, D. D. Malo, D. E. Clay, C. G. Carlson, and S. A. Clay

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On-Farm-Research Protocols: Determining Vertical Accuracy of Differentially Corrected Carrier and Code Phase Global Positioning Satellite Systems, D.P. Johnson, D. E. Clay, C. G. Carlson, K. W. Strange, S. A. Clay, J. A. Schumacher, and M. M. Ellsbury

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Influence of Crop Rotation, Tillage, and Management Inputs on Weed Seed Production, George O. Kegode and Frank Forcella

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Stability of Corn (Zea mays)-foxtail (Setaria spp.) Interference Relationships, John L. Lindquist, Philip Westra, W. J. Lambert, Thomas T. Bauman, Jason C. Fausey, James J. Kells, Steven J. Langton, R. Gordon Harvey, Brett H. Bussler, Kevin Banken, Sharon Clay, and Frank Forcella

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Spatial Variation in Atrazine Field Dissipation and Laboratory Mineralization and Their Relationship to Weed Control, Z. Liu, S. A. Clay, and D. E. Clay

Submissions from 1998

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Field Scale Variability of Nitrogen and δ15N in Soil and Plants, D. E. Clay, J. Chang, S. A. Clay, m. Ellsbury, C. G. Carlson, D. D. Malo, D. Woodson, and T. DeSttur

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Application Method: Impacts on Atrazine and Alachlor Movement, Weed Control, and Corn Yield in Three Tillage Systems, S. A. Clay, D. E. Clay, W. C. Koskinen, and R. K. Berg Jr

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Weed Seedbanks and Corn Growth Following Continuous Corn or Alfalfa, Sharon A. Clay and Immer Aguilar

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Leafy Spurge Biological Control Using Black Dot Flea Beetles and Deleterious Rhizobacteria: Final Report Submitted to South Dakota Department of Agriculture Weed and Pest Control, Sharon A. Clay, Mark A. Brinkman, Robert J. Kramer, Jan J. Jackson, and Nels H. Granholm

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Atrazine, Alachlor, and Total inOrganic Nitrogen Concentrations of Winter Wind‐eroded Sediment Samples, Tom M. DeSutter, S. A. Clay, and D. E. Clay

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Diversity and Dominant Species of Ground Beetle Assemblages (Coleoptera: Carabidae) in Crop Rotation and Chemical Input Systems for the Northern Great Plains, Michael M. Ellsbury; Janine E. Powell; Frank Forcella; W, David Woodson; Sharon A. Clay; and Walter E. Riedell

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Diversity and Dominant Species of Ground Beetle Assemblages (Coleoptera: Carabidae) in Crop Rotation and Chemical Input Systems for the Northern Great Plains, Michael M. Ellsbury, Janine E. Powell, Frank Forcella, W. David Woodson, Sharon A. Clay, and Walter E. Riedell

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Geostatistical Characterization of the Spatial Distribution of Adult Corn Rootworm (Coleoptera: Chrysomelidae) Emergence, M. M. Ellsbury, W. D. Woodson, S. A. Clay, D. D. Malo, J. Schumacher, D. Clay, and C. G. Carlson

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Corn and Soil Fertility Responses to Crop Rotation with Low, Medium, or High Inputs, Walter E. Riedell, Thomas E. Schumacher, Sharon A. Clay, Michael M. Ellsbury, Max Pravecek, and Paul D. Evenson

Submissions from 1997

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Analysis of Spatial Distribution of Canada Thistle (Cirsium Arvense) in Notill Soybean (Glycine Max), B. L. Broulik, J. Lems, S. A. Clay, D. E. Clay, and M. M. Ellsbury

Sorption and Degradation of Alachlor in Soil and Aquifer Material, S. A. Clay, T. B. Moorman, D. E. Clay, and K. A. Scholes

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Leafy Spurge - A Review, Sharon A. Clay and Chad M. Scholes

Spatial Characterization of Adult Emergence Patterns and Oviposition for Corn Rootworm Populations in Continuous and Rotated Corn, M. M. Ellsbury, W D. Woodson, L. D. Chandler, S. A. Clay, D. E. Clay, D. Malo, T. Schumacher, J. Schumacaher, and C. G. Carlson

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Weed Seed Bank Emergence across the Corn Belt, Frank Forcella, Robert G. Wilson, Jack Dekker, Robert J. Kramer, John Cardina, Randy L. Anderson, David Alm, Karen A. Renner, R. Gordon Harvey, Sharon Clay, and Douglas D. Buhler

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Factors Affecting Atrazine Fate in North Central U.S. soils, W. C. Koskinen and Sharon Clay

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Atrazine and Alachlor Adsorption Characteristics to Benchmark Soil Series in Eastern South Dakota, Z. Liu, S. A. Clay, J. Gaffney, and D. Malo

Submissions from 1996

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Temporal Variability of Organic C and Nitrate in a Shallow Aquifer, D. E. Clay, S. A. Clay, T. B. Moorman, K. Brix-Davis, K. A. Scholes, and A. R. Bender

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The Interaction between the Spatial Variability of Velvetleaf Populations and Corn Grain Yield Potentials, S. A. Clay and K. Brix-Davis

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The Effect of Ammonia on Atrazine Sorption and Transport, S. E. Clay, D. E. Clay, Z. Liu, and S. S. Harper

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Alternative Weed Management Strategies Symposium: An Overview, Sharon Clay

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Transport of Agrichemicals by Wind Eroded Sediments to Nontarget Areas, Thomas M. DeSutter, Sharon A. Clay, and David E. Clay

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Spatial Characterization of Corn Rootworm Populations in Continuous and Rotated Corn, M. M. Ellsbury, W. D. Woodson, S. A. Clay, and C. G. Carlson

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Stability of Corn (Zea mays)-Velvetleaf (Abutilon theophrasti) Interference Relationships, John L. Lindquist, David A. Mortensen, Sharon Clay, Richard Schmenk, James J. Kells, Kirk Howatt, and Philip Westra

Submissions from 1995

RIdge-Tillage Systems and Water Quality in MSEA Studies, R. Allmaras, S. Clay, D. Hughes, R. Kanwar, R. Knoighton, J. Lamb, B. Lowery, and S. Workman

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Banding Nitrogen Fertilizer Influence on Inorganic Nitrogen Distribution, D. E. Clay, C. C. Carlson, P. W. Holman, T. E. Schumacher, and S. Clay

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Leaching of Dissolved Organic Carbon in Soil Following Anhydrous Ammonia Application, D. E. Clay, S. A. Clay, Z. Liu, and S. S. Harper

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Alachlor and Metolachlor Movement During Winter and Early Spring at Three Midwestern Sites, S. A. Clay, W. C. Koskinen, and J. M. Baker

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Spring Wheat (Triticum aestivum) Cultivar Responses to Trifluralin and Postemergence Herbicides, Sharon A. Clay, Jim F. Gaffney, and Leon J. Wrage

Where's the Atrazine? A Regional Groundwater Synopsis, N. Fausey, R. Dowdy, T. Steinheimer, R. Spalding, P. Blanchard, B. Lowery, W. Albus, and Sharon Clay

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Ammonia Impacts on Atrazine Leaching Through Undisturbed Soil Columns, Z. J. Liu, S. A. Clay, D. E. Clay, and S. S. Harper

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Velvetleaf (Abutilon theophrasti) Effect on Corn (Zea mays) Growth and Yield in South Dakota, Chad Scholes, Sharon A. Clay, and Kalyn Brix-Davis

Ammonia Fertilizer Influences Atrazine Adsorption-Desorption Characteristics, Liu Zhoujing, Sharon A. Clay, David E. Clay, and Sidney S. Harper

Submissions from 1994

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Nitrate Movement after Anhydrous Ammonia Application in a Ridge Tillage System, D. E. Clay, S. A. Clay, K. Brix-Davis, and K. A. Scholes

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Agrichemical Detection in a Shallow Unconfined Aquifer as Influenced by Sampling Technique, D. E. Clay, P. W. Holman, S. A. Clay, T. E. Schumacher, K. A. Scholes, and A. R. Bender

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Fertilizer Shank Placement Impact on Atrazine Movement in a Ridge Tillage System, Sharon A. Clay, Kimberly A. Scholes, and David E. Clay

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Quackgrass Control in Established Alfalfa with Sethoxydim, E. K. Twidwell, K. D. Kephart, and Sharon Clay

Submissions from 1992

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Agrichemical Placement Impacts on Alachlor and Nitrate Movement Through Boil in a Ridge Tillage System, S. A. Clay, O. E. Clay, W. C. Koskinen, and G. L. Malzer

Submissions from 1991

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Alachlor Movement Through Intact Soil Columns Taken From Two Tillage Systems, Sharon A. Clay, William C. Koskinen, and Paul Carlson

Submissions from 1990

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Adsorption and Desorption of Atrazine, Hydroxyatrazine, and S-Glutathione Atrazine on Two Soils, Sharon A. Clay and William C. Koskinen

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Characterization of Alachlor and Atrazine Desorption from Soils, Sharon A. Clay and William C. Koskinen

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Chemical Control of Giant Burreed (Sparganium eurycarpum) in Wild Rice (Zizania palustris), Sharon A. Clay and Ervin A. Oelke