01/13/2005

10/10/2005

05/22/2006

Allred, B.J., Fausey, N.R., Daniels, J.J., Chen, C., Peters, L., Youn, H. 2005. Important considerations for locating buried agricultural drainage pipe using ground penetrating radar. Applied Engineering in Agriculture. 21(1):71-87.

Allred, B.J., Redman, D., Mccoy, E.L. 2005. Golf course applications of nearsurface geophysical methods. Journal of Environmental & Engineering Geophysics. 10(1):1-19.

Bakhsh, A. and R.S. Kanwar. 2005. Mapping Clusters of NO3-N Leaching Losses with Subsurface Drainage Water. Journal of American Water Resources Association 41(2):333-341.

Bakhsh, A., R.S. Kanwar, and D. Karlen. 2005. Effects of liquid swine manure applications on NO3-N -N leaching losses to subsurface drainage water. Agriculture, Ecosystems and Environment 109(1-2):118-128.

Bakhsh, A., R.S. Kanwar, and D. Karlen. 2005. Effects of liquid swine manure applications on NO3-N leaching losses to subsurface drainage water. Agriculture, Ecosystems and Environment 109(1-2):118-128.

Bakhsh, A., R.S. Kanwar, D. B. Jaynes, T. S. Colvin and L. R. Ahuja. 2005. Modeling precision agriculture for better crop productivity and environmental quality. International Agricultural Engineering Journal 14(4):1-10.

Burchell, M.R. II, R.W. Skaggs, G.M. Chescheir, J.W. Gilliam and L.A. Arnold. 2005. Shallow subsurface drains to reduce nitrate losses from drained agricultural lands. Trans. ASAE 48(3):1079-1089.

Daniels, J.J., Allred, B.J., Binley, A., Labrecque, D., Alumbaugh, D. 2005. Hydrogeophysical case studies in the vadose zone. In: Rubin, Y., Hubbard, S., editors. Hydrogeophysics. New York, NY: Springer. p. 413-440.

Du, B., J.G. Arnold, A. Saleh, and D.B. Jaynes. 2005. Development and application of SWAT to landscapes with tiles and potholes. Trans ASAE 48:1121-1133.

Fernandez, G.P., G.M. Chescheir, R.W. Skaggs and D.M. Amatya. 2005. Development and testing of watershed scale models for poorly drained soils. Trans. ASAE 48(2):639-652.

Huynh, L., Vantoai, T.T., Streeter, J., Banowetz, G.M. 2005. Regulation of flooding tolerance of sag12:ipt arabidopsis plants by cytokinin. Journal of Experimental Botany. Vol. 56, No. 415, pp. 1297-1407.

Kanwar, R.S., R. Cruse, M. Ghaffarzadeh, A. Bakhsh, D. Karlen, and T. Bailey. 2005. Corn-soybean and alternate farming systems effects on water quality. Applied Engineering in Agriculture 21(2):181-188.

Kladivko, E.J., G.L Willoughby, and J.B. Santini. 2005. Corn growth and yield response to subsurface drain spacing on Clermont silt loam soil. Agron. J. 97:1419-1428.

Kung, K.-J.S., M. Hanke, C.S. Helling, E.J. Kladivko, T.J. Gish, T.S. Steenhuis, and D.B. Jaynes. 2005. Quantifying pore-size spectrum of macropore-type preferential pathways. Soil Sci. Soc. Am. J. 69:1196-1208.

Lander, K, P.K. Kalita, and R.A. Cooke. 2005. Base flow characteristics of a subsurface drained watershed. Intl. Agric. Eng. Journal, Vol. 14(4), 171-179.

Sammons, R.J., R.H. Mohtar, W.J. Northcott. 2005. Modeling Subsurface Drainage Flow of a Small, Tile-Drained Watershed Using DRAINMOD. Applied Engineering in Agriculture. American Society of Agricultural Engineers. Vol. 21(5): 815-834.

Shelby, J.D., G.M. Chescheir, R.W. Skaggs and D.M. Amatya. 2005. Hydrologic and water-quality response of forested and agricultural lands during the 1999 extreme weather conditions in eastern North Carolina. Trans. ASABE 48(6): 2179-2188.

Skaggs, R.W., G.M. Chescheir and B.D. Phillips. 2005. Methods to determine lateral effect of a drainage ditch on wetland hydrology. Trans. ASAE, 48(2):577-584.

Skaggs, R.W., M.A. Youssef, G.M. Chescheir and J.W. Gilliam. 2005. Effect of drainage intensity on nitrogen losses from drained lands. Transactions of the ASABE 48(6):2169-2177.

Strock, J.S., D. Bruening, J.D. Apland, D.J. Mulla. 2005. Farm management practices in two geographically diverse watersheds in the Cottonwood River Watershed of Minnesota. Water, Air, and Soil Pollution. 165:211-231

Strock, J.S., G.R. Sands, D. Deutsch, and C. C. Surprenant. 2005. Design and testing of a paired drainage channel research facility. Appl. Eng. Agric. 21:63-69.

Strock, J.S., M.A. Schmitt. 2005. Manure nitrogen management for corn on loess soil in a sensitive groundwater area. [Online]. Crop Management. http://www.plantmanagementnetwork.org/sub/cm/research/2005/water/

Thoma, D.P., S.C. Gupta, J.S. Strock, and J.F. Moncrief. 2005. Tillage and nutrient source impacts on water quality from a flat landscape. J. Environ. Qual. 34:1102-1111.

Torbert III, H.A., King, K.W., Harmel, R.D. 2005. Impact of soil amendments on reducing p losses from runoff in sod. Journal of Environmental Quality. 34:1415-1421.

Wang, X., M.A. Youssef, R.W. Skaggs, J.D. Atwood, and J.R. Frankenberger. 2005. Sensitivity analysis of the nitrogen simulation model, DRAINMOD-NII. Trans. ASABE 48(6):2205-2212.

Youssef, M.A., R.W. Skaggs, G.M. Chescheir, and J.W. Gilliam. 2005. The nitrogen simulation mode, DRAINMOD-NII. Trans ASAE, 48(2): 611-626.

Zhu, H., Krause, C.R., Zondag, R.H., Brazee, R.D., Derksen, R.C., Reding, M.E., Fausey, N.R. 2005. A new system to monitor water and nutrient use efficiency in pot-in-pot nursery production system. Journal of Environmental Horticulture. 23(1):47-53.

Extension or Non-refereed Publications for 2005

Algoazany, A,. P. K. Kalita, J. K. Mitchell, R. A. Cooke. 2005. A long-Term Monitoring of Agricultural Chemical Transport From A Flat Tile-Drained Watershed. ASAE International Meeting, ASAE Paper # 05-2255. St Joseph, MI.

Bakhsh, A. and R.S. Kanwar. 2005. Landscape attributes effects on NO3-N leaching losses to subsurface drainage water. In: Proceedings of the International Agricultural Engineering Conference, December 6-9, 2005, Bangkok, Thailand.

Brouder, S., B. Hofmann, E. Kladivko, R. Turco, A. Bongen, and J. Frankenberger. 2005. Interpreting nitrate concentration in tile drainage water. Purdue Extension Publ. AY-308-W. http://www.ces.purdue.edu/extmedia/AY/AY-318-W.pdf.

Cooke, R.A., G.R. Sands and L.C. Brown. 2005. Drainage water management: A Practice for reducing nitrate loads from subsurface drainage systems. Upper Mississippi River Hypoxia Conference. Ames, Iowa, September 2005.

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.

Feyereisen, G.W. 2005. A Probabilistic Assessment of the Potential for Winter Cereal Rye to Reduce Field Nitrate-Nitrogen Loss in Southwestern Minnesota. Ph.D. dissertation. University of Minnesota, St. Paul, Minn.

Frankenberger, J., E. Kladivko, B. Gutwein, R. Adeuya, L. Bowling, B. Carter, S. Brouder, J. Lowenberg-DeBoer, and J. Brown, 2005. On-farm monitoring to assess the impacts of drainage water management. ASAE Paper No. 052027. St. Joseph, Mich.: ASAE.

Goswami, D., P. K. Kalita, R. A. Cooke. 2005. Estimation of Base Flow in Drainage Channels in Two Tile Drained Watersheds in Illinois. ASAE International Meeting, ASAE Paper # 05-2066. St Joseph, MI.

Helmers, M. J. and P. A. Lawlor. 2005. Conservation systems: Effects of manure application on drainage water quality. In Proceedings of the 17th Annual Integrated Crop Management Conference (November 30 and December 1, 2005, Iowa State University, Ames, IA), pp. 177-188.

Helmers, M. J., P. A. Lawlor, J. L. Baker, S. W. Melvin, and D. W. Lemke. 2005. Temporal subsurface flow patterns from fifteen years in north-central Iowa. ASAE Meeting Paper No. 05-2234. St. Joseph, MI: ASAE.

Lawlor, P. A., M. J. Helmers, J. L. Baker, S. W. Melvin, and D. W. Lemke. 2005. Nitrogen application rate effects on corn yield and nitrate-nitrogen concentration and loss in subsurface drainage. ASAE Meeting Paper No. 05-2025. St. Joseph, MI: ASAE.

Miller, N.C. 2005. Grade control capability of cantilever drainage plows under experimental conditions. Ohio State University Thesis.

Nelson, K., R. Smoot, and M. Jones. 2005. MU Drainage and Subirrigation (MUDS) Research Update. http://aes.missouri.edu/greenley/research/muds.stm.

Rengsang, P., R.S. Kanwar, M. Jha, P.W. Gassman, K. Ahmad, and A. Saleh. 2005. Assessment of agricultural management practices in the Upper Maquoketa River Watershed. In: Proceedings of the 3rd International SWAT Conference (Editors: R. Srinivasan, J. Jacob, D. Day, and K. Abbaspur), July 13-15, 2005, EAWAG, Zurich, E.T.H. Switzerland.

Singh, A K, L Blankers, J K Oswald, T P Trooien, and H D Werner. 2005. Accuracy, precision, and sensitivity of ultrasonic sensors to measure the water level in piezometers. ASAE Paper SD05-400. ASAE: St Joseph, MI.

Strock, J.S., M.A. Schmitt. 2005. Manure nitrogen management for corn on loess soil in a sensitive groundwater area. [Online]. Crop Management. http://www.plantmanagementnetwork.org/sub/cm/research/2005/water/

Wortman, C. S., M. J. Helmers, A. Mallarino, C. Barden, D. Devlin, G. Pierzynski, J. Lory, R. Massey, J. Holz, C. Shapiro, and J. Kovar. 2005. Agricultural phosphorus management and water quality protection in the Midwest. RP187 Heartland Regional Water Coordination Initiative. Iowa State University Extension.

07/24/2007

1. Allred, B. J., M. R. Ehsani, and D. Saraswat. 2006. Comparison of electromagnetic induction, capacitively-coupled resistivity, and galvanic contact resistivity methods for soil electrical conductivity measurement. Applied Engineering in Agriculture. 22(2):215-230.

2. Bakhsh, A. and R.S. Kanwar. 2006. N-source effects on temporal distribution of NO3-N leaching losses to subsurface drainage water. Water, Air, and Soil Pollution Journal 11270 (6): 1-16.

3. Feyereisen, G.W., G.R. Sands, B.N. Wilson, J.S. Strock, P.M. Porter. 2006. Plant growth component of a simple rye growth model. Trans. ASABE 49: 1569-1578.

4. Feyereisen, G.W., B.N. Wilson, G.R. Sands, J.S. Strock, P.M. Porter. 2006. A probabilistic assessment of the potential for a winter cereal rye cover crop to reduce field nitrate-N loss in southwestern Minnesota. Agron. J. 98: 1416-1426.

5. Gish, T.J. and K.-J. S. Kung. 2007. Procedure for quantifying a solute flux to a shallow perched water table. Geoderma. 138(1-2):57-64.

6. Kalita, P.K.., A Algoazany, J.K. Mitchell, R.A.C. Cooke and M.C. Hirschi. 2006. Agricultuarl chemical transport from a subsurface drained watershed in east-central Illinois, USA. Agriculture, Ecosystem and Environment 115:183-193.

7. Kanwar, R.S. 2006. Effects of cropping systems on NO3-N losses to tile drain systems. Journal of American Water Resources Association 42(6):1493-1502.

8. Kung, K.-J.S., E.J. Kladivko, C.S. Helling, T.J. Gish, T.S. Steenhuis, and D.B. Jaynes. 2006. Quantifying the pore size spectrum of macropore-type preferential pathways under transient flow. Vadose Zone J. 5:978-989.

9. Oquist, KA., J.S. Strock, and D.J. Mulla. 2006. Influence of alternative and conventional management practices on soil physical properties. Invited. Vadose Zone J. 5: 356-364.

10. Reungsang, A., T.B. Moorman, and R.S. Kanwar. 2006. Prediction of atrazine fate in riparian buffer strips soils using the Root Zone Water Quality Model. Journal of Water and Environment Technology 3:209-222.

11. Singh, R., M. J. Helmers, and Z. Qi. 2006. Calibration and validation of DRAINMOD to design subsurface drainage systems for Iowas tile landscapes. Agricultural Water Management. 85: 221-232.

12. Skaggs, R.W., M.A. Youssef, and G.M. Chescheir. 2006. Drainage design coefficients for Eastern United States. Agricultural Water Management 86:40-49.

13. Wang, X., C.T. Mosley, J.R. Frankenberger, and E.J. Kladivko. 2006. Subsurface drain flow and crop yield predictions for different drain spacings using DRAINMOD. Agric. Water Mgmt. 79:113-136.

14. Wang, X., J.R. Frankenberger, and E.J. Kladivko. 2006. Uncertainties in DRAINMOD predictions of subsurface drain flow for an Indiana silt loam using GLUE methodology. Hydrol. Process. 20:3069-3084.

15. Youssef, M.Y., R.W. Skaggs, G.M. Chescheir, and J.W. Gilliam. 2006. Field evaluation of a model for predicting nitrogen losses from drained lands. J. Environ. Qual. 35:2026-2042.

Book Chapters:
16. Baker, J. L., M. J. Helmers, and J. M. Laflen. 2006. Water management practices: rain-fed cropland. Chapter 2 in Evaluating the Environmental Benefits of Agricultural Conservation Practices- The Status of our Knowledge. Soil and Water Conservation Society, Ankeny, IA.

Extension Publications:
17. Frankenberger, J., Kladivko, E., Sands, G., Jaynes, D.B., Fausey, N.R., Helmers, M., Cooke, R., Strock, J., Nelson, K., Brown, L. 2006. Drainage water management for the Midwest. Purdue Extension, Knowledge to Go. WQ-44.

18. Wortman, C. S., M. Al-Kaisi, M. J. Helmers, J. Sawyer, D. Devlin, C. Barden, P. Scharf, R. Ferguson, W. Kranz, C. Shapiro, R. Spalding, D. Tarkalson, J. Holz, D. Francis, and J. Schepers. 2006. Agricultural nitrogen management and water quality protection in the Midwest. RP189 Heartland Regional Water Coordination Initiative. Iowa State University Extension.

Conference Proceeding and Presented Publications:
19. Bakhsh, A. and R.S. Kanwar. 2006. Watershed hydrologic attributes effects on crop yields. In: Proceedings of the International Seminar on Agricultural Engineering: Issues and strategies; held on February 16-18, 2006 at the University of Agriculture, Faisalabad, Pakistan, pp. 101-107.

20. Chun, J. and R. A. Cooke. 2006. Numerical Modeling of Field-scale Subsurface Bioreactors. Innovations in Reducing Nonpoint Source Pollution. Nov. 28-30, Indianapolis, IN. Hanover College.
21. Cooke, R.A. 2006. The Illinois Conservation Drainage Research/Demonstration Program. ASA-CSSA-SSSA Annual Meeting. Nov. 12-16, 2006, Indianapolis, IN.
22. Frankenberger, J., E. Kladivko, G. Sands, D. Jaynes, N. Fausey, M. Helmers, R. Cooke, J. Strock, K. Nelson, and L. Brown. 2006. Drainage Water Management for the Midwest: Questions and Answers About Drainage Water Management for the Midwest. Purdue Extension Publ. WQ-44. http://www.ces.purdue.edu/extmedia/WQ/WQ-44.pdf

23. Frankenberger, J.R., E. Kladivko, R. Adeuya, L. Bowling, B. Carter, S. Brouder, J. Lowenberg-DeBoer, and J. Brown. 2006. Drainage water management impacts on nitrate load, soil quality, and crop yield. Proc. Innovations in Reducing Nonpoint Source Pollution Conf., Nov. 28-30, Indianapolis, Indiana.

24. Helmers, M. J. and R. Singh. 2006. Economic and environmental considerations for drainage design. In Proceedings of the 18th Annual Integrated Crop Management Conference (November 29 and 30, 2006, Iowa State University, Ames, IA), pp. 239-244.

25. Jaynes, Dan, Tom Kaspar, Tom Moorman, and Tim Parkin. 2006. In-Field Bioreactor for Removing Nitrate from Tile Drainage. ASA-CSSA-SSSA Annual Meeting, Indianapolis, IN Nov 12-16, 2006.

26. Kladivko, E.J., and J.R. Frankenberger. 2006. Subsurface drain spacing, cover crop, and fertilizer management effects on nitrate loads to surface waters. Proc. Innovations in Reducing Nonpoint Source Pollution Conf., Nov. 28-30, Indianapolis, Indiana.

27. Kladivko, E.J., F.J. Larney, J.B. Santini, and G.L. Willoughby. 2006. Drainage, tillage, and cover crop effects on soil properties and maize yields. Proc. 17th International Soil Tillage Research Organization (ISTRO) Conf., Aug.28-Sept.1, Kiel, Germany. (published on CD)

28. Qi, Z., M. Helmers, and R. Singh. 2006. Evaluating a drainage model using soil hydraulic parameters derived from various methods. ASAE Meeting Paper No. 062318. St. Joseph, Mich.: ASAE.

29. Rodrique, A., R. A. Cooke and J. Chun. 2006. Effects of Sampling Frequencies in the Evaluation of Nitrate-N Transport from Drainage Related BMPs. Innovations in Reducing Nonpoint Source Pollution. Nov. 28-30, Indianapolis, IN. Hanover College.

30. Singh, R. and M. J. Helmers. 2006. Subsurface drainage and its management in the upper Midwest tile landscape. In Proceedings of the EWRI Congress, ASCE.

31. Thorp, Kelly, Dan Jaynes, and Rob Malone. 2006. Using RZWQM and Drainmod NII to Simulate Drainage Water Management in Iowa. ASA-CSSA-SSSA Annual Meeting, Indianapolis, IN Nov 12-16, 2006.

32. Youssef, M.A. and R.W. Skaggs. 2006. The nitrogen simulation model, DRAINMOD-N II: Field testing and model application for contrasting soil types and climatological conditions. In Proc. 2006 World Environmental and Water Resources Congress. Omaha, NB: EWRI of ASCE.

05/11/2008

06/02/2009

[2008]Publications:

Ale, S., L.C. Bowling, S.M. Brouder, J.R. Frankenberger, and M.A. Youssef. 2009. Simulated effect of drainage water management operational strategy on hydrology and crop yield for drummer soil in the Midwestern United States. Agricultural Water Management. (In Press).

Appelboom, T.W., G.M. Chescheir, R.W. Skaggs, J.W. Gilliam and D.M.Amatya. 2008. Nitrogen balance for a plantation forest drainage canal on the North Carolina coastal plain. Trans of ASABE, 51(4):1215-1233.

David, M.B., S.J. Del Grosso, X. Hu, E. P. Marshall, G.F. McIsaac, W.J. Parton, C. Tonitto, and M.A. Youssef. 2009. Modeling denitrification in a tile-drained, corn and soybean agroecosystem of Illinois, USA. Biogeochemistry 93:7-30.

Jin, C.X., G.R. Sands, J. Wiersma, H. Kandel. 2008. The Influence of Subsurface Drainage on Soil Temperature in a Cold Climate. Journal of Irrigation and Drainage Engineering (ASCE) 134(1):83-88.

Lawlor, P. A., M. J. Helmers, J. L. Baker, S. W. Melvin, and D. W. Lemke. 2008. Nitrogen application rate effects on nitrate-nitrogen concentrations and losses in subsurface drainage. Trans. ASABE 51(1): 83-94.

Nangia, V., P. H. Gowda, D. J. Mulla, G. R. Sands. 2008. Water Quality Modeling for Impacts of Fertilizer Management Practices on Nitrate-N losses in Tile Drains at the Field-Scale. Journal of Environmental Quality 37:296-307.

Naz, B., and L.C. Bowling. 2008. A decision analysis system for mapping of subsurface drainage systems. Trans. ASABE 51:1937-1950.

Qi, Z. and M.J. Helmers. Soil water dynamics under winter rye cover crop in central Iowa. Vadose Zone Journal Accepted February 5, 2009.

Salazar, O., I Wesstrom, M.A. Youssef, R.W. Skaggs and A. Joel. 2008. Evaluation of the DRAINMOD-NII model for predicting nitrogen losses in southeast Sweden, Agricultural Water Management, 96(2):267-281.

Sands, G.R., I. Song, L.M. Busman, B. Hansen. 2008. The Effects of Subsurface Drainage Depth and Intensity on Nitrate Load in a Cold Climate. Transactions of the ASABE 51(3):937-946.

Schilling, K. E., and M. J. Helmers. 2008. Effects of subsurface drainage tiles on streamflow in agricultural watersheds: exploratory hydrograph analysis. Hydrological Processes DOI:10.1002/hyp.7052.

Schilling, K. E., and M. J. Helmers. 2008. Tile drainage as Karst: Conduit flow and and diffuse flow in a tile-drained watershed. Journal of Hydrology 349: 291-301.

Singh, R., M. J. Helmers, A. L. Kaleita, and E. S. Takle. In Press. Potential impact of climate change on subsurface drainage in Iowas subsurface drained landscapes. Journal of Irrigation and Drainage Engineering Accepted October 29, 2008.

Thorp, K.R., Jaynes, D.B and Malone, R.W. Simulating the Long-Term Performance of Drainage Water Management Across the Midwestern United States. Trans. ASABE 51(3):961-976.

Thorp, K.R., M.A. Youssef, D.B. Jaynes, R.W. Malone, and L. Ma. DRAINMOD-N II: Evaluated for an agricultural system in Iowa and compared to RZWQM-DSSAT. Trans. ASABE. (In review)



Extension or Non-refereed Publications
Amatya, D.M., K. Hyunwoo, G.M. Chescheir, R.W. Skaggs and J.E. Nettles. 2008. Hydrologic effects of size and location of harvesting on a large drained pine forest on organic soils. In: C. Farrell and J. Feehan, Eds. After Wise Use  The Future of Peatlands: Proceedings of the 13th International Peat Congress, Tullamore, Ireland, 8  13 June 2008. International Peat Society, Jyväskylä, Finland. pp. 463-467.

Baker, J., R. Venterea, and J. Strock. 2008. The Impact of Tile Drainage on Soil Carbon. In C. Schrader and J.S. Strock (eds.). Proceedings of 3rd Soil and Water Management Field Day, 15 August, 2008. Univ. Minnesota, Southwest Research and Outreach Center, Lamberton, MN. http://swroc.cfans.umn.edu/soilandwater/08soilwater_proceeding.PDF.

Beltran, B. D.M. Amatya, M.Jones, R.W. Skaggs, T.J. Callahan and J.E. Nettles. 2008. Impacts of fertilizer application on drainage water quality of a pine plantation in North Carolina. Paper presented at the Annual international Meeting of the ASABE, Providence, RI.

Chescheir, G.M., D.M. Amatya, and R.W. Skaggs. 2008. Hydrology of a natural hardwood forested wetland. In: C. Farrell and J. Feehan, Eds. After Wise Use  The Future of Peatlands: Proceedings of the 13th International Peat Congress, Tullamore, Ireland, 8  13 June 2008. International Peat Society, Jyväskylä, Finland. pp. 468-471.Finland and Tallinn, Estonia: 195-208.

Chescheir, G.M., R.W. Skaggs, and D.M. Amatya. 2008. Hydrologic impacts of converting grassland to managed forestland in Uruguay. Proceedings of Symposium, 21st Century Watershed Technology: Improving Water Quality and the Environment, Concepcion, Chile.

Feser, S. and J.S. Strock. 2008. Drainage water management to improve edge-of-field water quality in southwest Minnesota. In C. Schrader and J.S. Strock (eds.). Proceedings of 3rd Soil and Water Management Field Day, 15 August, 2008. Univ. Minnesota, Southwest Research andOutreach Center, Lamberton, MN. http://swroc.cfans.umn.edu/soilandwater/08soilwater_proceeding.PDF.

Frankenberger, J., E. Kladivko, R. Adeuya, N. Utt, L. Bowling, and B. Carter. 2008. Determining the hydrologic impacts of drainage water management in Indiana, USA. pp. 134-141 in Proc. 10th International Drainage Workshop of ICID Working Group on Drainage, July 6-11, Helsinki, Finland/Tallinn, Estonia.

Geohring, L.D. 2008. Identifying and Addressing Hydrologically Sensitive Areas for Developing Comprehensive Nutrient Management Plans. In: CNMP Training Manual  Hydrologic Concerns. NYS Soil & Water Conservation Committee. Albany, NY.

Geohring, L.D., S.W. Duiker, D.W. Wolfe, and P.A. Ray. 2008. NRCCA Soil and Water Management Study Guide. NRCCA Program, Macedon, NY. 73 pp. http://www.northeastcropadvisers.org/soilwater.pdf

Harrigan, T.M., S.K. Haack and J.W. Duris. 2008. Evaluation of Bacteriological Water Quality Following Liquid Manure Application on a Desiccated Cereal Rye Cover Crop in Artificially Drained Cropland. ASABE Paper No. 080031. St. Joseph, MI.: ASABE.

Hester, J., K. Nelson, and M. Nussbaum. 2008. Performance of a solar pump system for subirrigating corn through a subsurface drainage system. Greenley Memorial Research Center Report. pp. 33-44.

Kladivko, E.J. 2008. Long-term tile drainage studies provide data for better reduction of nitrate leaching losses. No. 761-1. Agron. Abs. (CD-ROM)

Kladivko, E.J., and J.R. Frankenberger. 2008. Nitrate-N loads to subsurface drains as affected by drainage intensity and agronomic management practices. pp. 8-14 in Proc. 10th International Drainage Workshop of ICID Working Group on Drainage, July 6-11, Helsinki, Finland/Tallinn, Estonia.

Motavalli, P.P., K.A. Nelson, and S.A. Anderson. 2008. Impact of fertilizer source and drainage on spatial variation. Missouri Soil Fertility and Fertilizers Research Update. Agronomy Misc. Publ. #08-01:51-57.

Nelson, K.A., and R.L. Smoot. 2008. MU drainage and subirrigation (MUDS) research update. Greenley Memorial Research Center Report. pp. 21-32.

Qi. Z. and M. J. Helmers. 2008. Effect of cover crops in reducing nitrate-nitrogen leaching in Iowa. In: Proceedings of the 20th Annual Integrated Crop Management Conference (December 10 and 11, Iowa State University, Ames, IA), pp. 283-294. [Oral Presentation - Helmers]

Qi, Z., M.J. Helmers, and P. Lawlor. 2008. Effect of different land covers on nitrate-nitrogen leaching and nitrogen uptake in Iowa. ASABE Meeting Paper No. 08-4806. St. Joseph, MI: ASABE. [Oral Presentation  Qi]

Rice, P., W. Koskinen, S. Papiernik, and J. Strock. 2008. Evaluating the influence of drainage, application, and tillage practices on the dissipation of chloroacetanilide herbicides in minnesota soils. In C. Schrader and J.S. Strock (eds.). Proceedings of 3rd Soil and Water Management Field Day, 15 August, 2008. Univ. Minnesota, Southwest Research and Outreach Center, Lamberton, MN. http://swroc.cfans.umn.edu/soilandwater/08soilwater_proceeding.PDF.

Singh, R. and M.J. Helmers. 2008. Improving crop growth simulation in the hydrologic model DRAINMOD to simulate corn yields in subsurface drained landscapes. ASABE Meeting Paper No. 08-3571. St. Joseph, MI: ASABE. [Oral Presentation  Helmers]

Skaggs, R.W. 2008. Drainage Water Management to Reduce Nitrogen Losses to Surface Waters. 16th National Nonpoint Source Monitoring Workshop, Columbus Ohio, Sept. 14-18, 2008.

Skaggs, R.W. 2008. DRAINMOD: A simulation model for shallow water table soils, South Carolina Water Resources Conference, Charleston, SC, Oct. 14-15, 2008.

Skaggs, R.W. 2008. Wetland Hydrology. Presented at Annual Meeting of the Society of Wetland Scientists, Washington, D.C., May 28, 2008

Skaggs, R.W., G.M. Chescheir, D.M. Amatya and J.D. Diggs. 2008. Effects of drainage and forest management practices on hydraulic conductivity of wetland soils. Keynote paper, Proceedings of the 13th World Peat Congress, Tullamore, Ireland.

Skaggs, R.W. and M.A. Youssef. 2008. Effect of controlled drainage on water and nitrogen balances in drained lands. Keynote paper, Proceedings of 10th International Drainage Workshop of ICID Working Group on Drainage, Helsinki.

Strock, J.S., M. Youssef, K. Oquist, G. Sands, and R.W. Skaggs. 2008. Use of DRAINMOD-NII to predict nitrogen losses under conventional and organic farming practices in Minnesota, USA. p. 15-20. Proceedings of 10th International Drainage Workshop of ICID Working Group on Drainage. Helsinki/Tallinn 6-11, July 2008. http://www.fincid.fi/julkaisut/IDW2008_proceedings.pdf.

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