DAN B JAYNES
Soil and Water Quality Research
Soil Scientist
Phone: (515) 294-8243
Fax: (515) 294-8125
Room 132 2110 UNIVERSITY BOULEVARD
NAT SOIL TILTH LAB AMES, IA, 50011-3120
Fausey, N.R., Pitts, D., Jaynes, D.B. 2008. Agricultural Drainage Water Management in the Upper Mississippi River Basin: Potential Impact and Implementation Strategies. Nonpoint Source Water Quality Monitoring Results Workshop. Meeting Abstract.
Ma, L., Malone, R.W., Jaynes, D.B., Thorp, K.R., Ahuja, L.R. 2008. Simulated Effects of Nitrogen Management and Soil Microbes on Soil Nitrogen Balance and Crop Production. Soil Science Society of America Journal. 72:1594-1603.
Thorp, K.R., Jaynes, D.B., Malone, R.W. 2008. Simulating long-term performance of drainage water management across the midwestern United States. Transactions of the ASABE. 51(3):961-976.
Jaynes, D.B., James, D.E. 2007. The Extent of Cropland Drainage in the United States [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 4-8, 2007, New Orleans, LA.
Thorp, K.R., Jaynes, D.B. 2007. Using RZWQM-DSSAT to Stimulate Drainage Water Management Across the United States Corn Belt [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 4-8, 2007, New Orleans, LA.
Gowda, P., Mulla, D.J., Jaynes, D.B. 2008. Simulated long-term nitrogen losses for a midwestern agricultural watershed in the United States. Agricultural Water Management. 95:616-624.
Saleh, A., Osei, E., Jaynes, D.B., Du, B., Arnold, J.G. 2007. Economic and environmental impacts of selected BMP's for nitrate-nitrogen reduction in Walnut Creek Watershed, Iowa, using FEM (farm economic model) and enhanced SWAT (soil and water assessment tool) models. Transactions of the ASABE. 50(4):1251-1259.
Farahbakhshazad, N., Dinnes, D.L., Li, C., Jaynes, D.B., Salas, W. 2008. Modeling Biochemical Impacts of Alternative Management Practices for a Row-Crop Field in Iowa. Agriculture, Ecosystems and Environment. 123(1-3):30-48.
Gaur, A., Jaynes, D.B., Horton, R., Ochsner, T.E. 2007. Surface and Subsurface Solute Transport Properties at Row and Inter-Row Positions. Soil Science. 172(6):419-431.
Baker, J.L., David, M.B., Lemke, D.W., Jaynes, D.B. 2008. Understanding Nutrient Fate and Transport, Including the Importance of Hydrology in Determining Field Losses, and Potential Implications on Management Systems to Reduce Those Losses. In: Final Report: Gulf Hypoxia and Local Water Quality Concerns Workshop. p. 1-17.
Thorp, K.R., Jaynes, D.B., Malone, R.W. 2006. Using RZWQM and Drainmod NII to Simulate Drainage Water Management in Iowa [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 12-16, 2006, Indianapolis, IN.
Heitman, J.L., Gaur, A., Horton, R., Jaynes, D.B., Kaspar, T.C. 2007. Field Measurement of Soil Surface Chemical Transport Properties for Comparison of Management Zones. Soil Science Society of America Journal. 71(2):529-536.
Jaynes, D.B., Olk, D.C., Colvin, T., Kaspar, T.C., Karlen, D.L. 2007. Response to "Comments on 'Need for a Soil-based Approach in managing Nitrogen Fertilizers for Profitable Corn Production' and 'Soil Organic Nitrogen Enrichment Following Soybean in an Iowa Corn-Soybean Rotation'". Soil Science Society of America Journal. 71(1):255.
Frankenberger, J., Kladivko, E., Sands, G., Jaynes, D.B., Fausey, N.R., Helmers, M., Cooke, R., Strock, J., Nelson, K., Brown, L. Drainage Water Management for the Midwest. Purdue Extension, Knowledge to Go. WQ-44. p. 1-8.
Jaynes, D.B., Colvin, T.S. 2006. Corn yield and nitrate loss in subsurface drainage from mid-season N fertilizer application. Agronomy Journal. 98:1479-1487.
Du, B., Saleh, A., Jaynes, D.B., Arnold, J.G. 2006. Evaluation of SWAT in Simulating Nitrate Nitrogen and Atrazine Fates in a Watershed with Tiles and Potholes. Transactions of the ASABE. 49(4):949-959.
Dinnes, D.L., Jaynes, D.B., Karlen, D.L., Bingner, R.L., Yuan, Y. 2006. Application of the ANNAGNPS model to the Walnut Creek, IA CEAP benchmark watershed. 2006 USDA-ARS CEAP Watershed Assessment Study Annual Meeting. Available: www.nrcs.usda.gov/TECHNICAL/nri/ceap/watersheds/2006meeting.html.
Gaur, A., Horton, R., Jaynes, D.B., Baker, J.L. 2006. Measured and predicted solute transport in a tile drained field. Soil Science Society of America Journal. 70:872-881.
Kaspar, T.C., Parkin, T.B., Jaynes, D.B., Cambardella, C.A., Meek, D.W., Jung, Y.S. 2006. Examining changes in soil organic carbon with oat and rye cover crops using terrain covariates. Soil Science Society of America Journal. 70:1168-1177.
Jaynes, D.B., Colvin, T.S. 2005. Nitrate Loss in Subsurface Drainage from Mid-Season N Fertilizer Application [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 6-10, 2005, Salt Lake City, UT.
Dinnes, D.L., Jaynes, D.B., Hatfield, J.L. 2005. Translating agricultural water quality research results into a format for policymakers to use [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 6-10, 2005, Salt Lake City, UT.
Kaspar, T.C., Jaynes, D.B., Parkin, T.B., Moorman, T.B. 2005. Effects of a rye cover crop and a permanent gamagrass strip on nitrate load in tile drainage [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts. Nov. 6-10, 2005, Salt Lake City, UT.
Bakhsh, A., Kanwar, R., Jaynes, D.B., Colvin, T.S., Ahuja, L.R. 2005. Modeling precision agriculture for better crop productivity and environmental quality. Asian Association for Agricultural Engineering. 14(4):235-243.
Jaynes, D.B., Karlen, D.L. 2005. Sustaining soil resources while managing nutrients. In: Final Report: Gulf Hypoxia and Local Water Quality Concerns Workshop, September 26-28, 2005, Ames, Iowa. p. 149-158.
Jaynes, D.B., Colvin, T.S. 2005. Nitrate Losses in Tile Drainage from Mid-Season N-Fertilizer [abstract]. American Society of Agricultural Engineers. Paper No. 052028.
Martens, D.A., Jaynes, D.B., Colvin, T.S., Kaspar, T.C., Karlen, D.L. 2006. Soil amino acid enrichment following soybean in an Iowa corn-soybean rotation. Soil Science Society of America Journal. 70:382-392.
Li, C., Farahbakhshazad, N., Jaynes, D.B., Dinnes, D.L., Salas, W., Mclaughlin, D. 2006. Modeling nitrate leaching with a biogeochemical model modified based on observations in a row-crop field in Iowa. Ecological Modeling. 196:116-130.
Du, B., Saleh, A., Jaynes, D.B., Arnold, J.G. 2005. Evaluation of SWAT in simulating atrazine losses in stream discharge for Walnut Creek watershed (Iowa) [CD-ROM]. Watershed Management Conference Proceedings. Atlanta, Georgia.
Al-Jabri, S.A., Lee, J., Gaur, A., Horton, R., Jaynes, D.B. 2006. A dripper-TDR method for insitu determination of hydraulic conductivity and chemical transport properties of surface soils. Advances in Water Resources. 29(2):239-249.
Jaynes, D.B., Dinnes, D.L., Hatfield, J.L., Saleh, A., Arnold, J.G. 2004. The Effects of N-Fertilizer Practices on the Water Quality of Walnut Creek, Iowa [CD-ROM]. ASA-CSSA-SSSA Annual Meeting Abstracts. Madison, Wisconsin.
Gaur, A., Heitman, J., Horton, R., Jaynes, D.B. 2004. Soil Surface Hydraulic and Chemical Transport Properties [CD-ROM]. ASA-CSSA-SSSA Annual Meeting Abstracts. Madison, Wisconsin.
Chaudhary, A., Colvin, T.S., Jaynes, D.B., Kaspar, T.C. 2004. Development of nitrogen response curves using field scale data and data mining. International Conference on Precision Agriculture Abstracts & Proceedings. [CD-ROM]. Madison, WI.
Kladivko, E.J., Frankenberger, J.R., Jaynes, D.B., Meek, D.W., Jenkinson, B.J., Fausey, N.R. 2004. Nitrate Leaching to Subsurface Drains as Affected by Drain Spacing and Changes in Crop Production System. Journal of Environmental Quality. 33(5):1803-1813.
Kaspar, T.C., Jaynes, D.B., Parkin, T.B., Moorman, T.B. 2004. Beyond fertilizer management: in-field approaches for reducing nitrate loads coming from agricultural drainage tiles [abstract]. Final Program Book of Abstracts, The Ninth Biennial Conference Minnesota Water 2004: Policy and Planning to Ensure Minnesota's Water Supplies. Minneapolis, MN. p. 70.
Chaplot, V., Saleh, A., Jaynes, D.B., Arnold, J.G. 2004. Predicting water, sediment and NO3-N loads under scenarios of land-use and management practices in a flat watershed. Journal of Water Air and Soil Pollution. 154(1-4):271-293.
BING, D., SALEH, A., ARNOLD, J.G., JAYNES, D.B. EVALUATION OF SWAT ON MODELING NITRATE-NITROGEN IN SOIL PROFILE AND STREAM DISCHARGE FOR WALNUT CREEK WATERSHED WITH TILE AND POTHOLE. WATER MANAGEMENT TO MEET EMERGING TMDL ENVIRONMENTAL REGULATIONS CONFERENCE. 2003. CD-ROM. ST. JOSEPH, MI. AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS.
BING, D., SALEH, A., ARNOLD, J.G., JAYNES, D.B. 2003. APPLICATION OF SOIL AND WATER ASSESSMENT TOOL (SWAT) TO LANDSCAPES WITH TILES AND POTHOLES. PART II. VALIDATION OF NEW PROCEDURES. CASE OF WALNUT CREEK WATERSHED (IOWA). ASAE ANNUAL INTERNATIONAL MEETING. AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS. PAPER NO. 032164.
JAYNES, D.B., WENDROTH, O., NIELSEN, D.R. STATE-SPACE ANALYSIS OF THERMAL DIFFUSIVITY DURING WATER PERCOLATION IN A FIELD SOIL. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. CD-ROM. MADISON, WI.
GAUR, A., HORTON, R., JAYNES, D.B. SURFACE SOLUTE TRANSPORT PROPERTIES AND SUBSURFACE CHEMICAL LEACHING IN A TILE DRAINED FIELD. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. CD-ROM. MADISON, WI.
ALBERTS, E.E., JAYNES, D.B., LERCH, R.N. NUTRIENT AND HERBICIDE MOVEMENT IN STREAMFLOW FROM TWO MIDWESTERN WATERSHEDS. PROCEEDINGS OF FIRST INTERAGENCY CONFERENCE ON RESEARCH IN THE WATERSHEDS. 2003. UNITED STATES DEPARTMENT OF AGRICULTURE. AGRICULTURAL RESEARCH SERVICE. WASHINGTON, D.C. P. 385-390 CDROM.
BREVIK, E.C., FENTON, T.E., JAYNES, D.B. EVALUATION OF THE ACCURACY OF A CENTRAL IOWA SOIL SURVEY AND IMPLICATIONS FOR PRECISION SOIL MANAGEMENT. PRECISION AGRICULTURE. 2003. V. 4(3). P. 331-342.
JAYNES, D.B., DINNES, D.L., MEEK, D.W., KARLEN, D.L., CAMBARDELLA, C.A., COLVIN, T.S. USING THE LATE SPRING NITRATE TEST TO REDUCE NITRATE LOSS WITHIN A WATERSHED. JOURNAL OF ENVIRONMENTAL QUALITY. 2004. V. 33(2). P. 656-668.
GAUR, A., HORTON, R., JAYNES, D.B., JACOBSON, L., AL-JABRI, S.A. USING SURFACE TIME DOMAIN REFLECTOMETRY MEASUREMENTS TO ESTIMATE SUBSURFACE CHEMICAL MOVEMENT. VADOSE ZONE JOURNAL. 2003. V. 2. P. 539-543.
GAUR, A., HORTON, R., JAYNES, D.B. USE OF NEAR-SURFACE TDR MEASUREMENTS TO PREDICT SUBSURFACE SOLUTE TRANSPORT. SOIL SCIENCE SOCIETY OF AMERICA ANNUAL MEETING. 2002. CD-ROM. MADISON, WI.
Tomer, M.D., Meek, D.W., Jaynes, D.B., Hatfield, J.L. 2003. Evaluation of nitrate-n fluxes from a tile-drained watershed in central Iowa. Journal of Environmental Quality. Poster No. 19.
TOMER, M.D., MEEK, D.W., JAYNES, D.B., HATFIELD, J.L. EVALUATION OF NITRATE-N FLUXES FROM A TILE-DRAINED WATERSHED IN CENTRAL IOWA. JOURNAL OF ENVIRONMENTAL QUALITY. 2003. V. 32. P. 642-653.
JAYNES, D.B., KASPAR, T.C., COLVIN, T.S. COMPARISON OF TECHNIQUES FOR DEFINING YIELD POTENTIAL ZONES IN AN IOWA FIELD. INTERNATIONAL CONFERENCE ON PRECISION AGRICULTURE ABSTRACTS & PROCEEDINGS. 2002. CD-ROM. MADISON, WI: ASA-CSSA-SSA.
DINNES, D.L., JAYNES, D.B., KARLEN, D.L., MEEK, D.W., CAMBARDELLA, C.A., COLVIN, T.S., HATFIELD, J.L. SURFACE WATER QUALITY RESPONSE TO A NITROGEN FERTILIZER BMP AT THE WATERSHED SCALE. SOIL AND WATER CONSERVATION SOCIETY. 2002. V. 57(5). P. 308.
TOMER, M.D., JAYNES, D.B., HATFIELD, J.L., COLE, K.J., DINNES, D.L., JAQUIS, R.J. CHARACTERIZATION OF WATER AND NITRATE FLUXES FROM A TILE-DRAINED WATERSHED. SOIL AND WATER CONSERVATION SOCIETY. 2002. V. 57(5). P. 325.
FARAHBAKHSHAZAD, N., MCLAUGHLIN, D., DINNES, D.L., JAYNES, D.B., LI, C. A SITE-SPECIFIC EVALUATION OF A CROP-DENITRIFICATION/DECOMPOSITION MODEL BASED UPON A US MIDWESTERN ROW-CROP FIELD. INTERNATIONAL CONFERENCE ON PRECISION AGRICULTURE ABSTRACTS & PROCEEDINGS. 2002. CD-ROM. Madison, WI: ASA-CSSA-SSSA.
AL-JABRI, S.A., HORTON, R., JAYNES, D.B., GAUR, A. FIELD DETERMINATION OF SOIL HYDRAULIC AND CHEMICAL TRANSPORT PROPERTIES. SOIL SCIENCE. 2002. V. 167(2). P. 353-367.
Skaggs, T.H., Jaynes, D.B., Kachanoski, R.G., Shouse, P.J., Ward, A.L. 2002. 6.5 solute transport: data analysis and parameter estimation. In. J.H. Dane and G.C. Topp. (eds). Methods of Soil Analysis. Part 4 Physical Methods. Soil Science of America, Madison, WI. Chapter 6.5. p. 1403-1434.
Meek, D.W., Dinnes, D.L., Jaynes, D.B., Cambardella, C.A., Colvin, T.S., Hatfield, J.L., Karlen, D.L. 2000. An autoregression model for a paired watershed comparison. Proceedings of the 12th Applied Statistics In Agriculture Conference. p. 223-231.