08/10/2010

Reported Publications:
Journal Publications:
Christianson, L., A. Castelló, R. Christianson, A. Bhandari, and M. J. Helmers. Hydraulic property determination of denitrifying bacteria fill media. Accepted May 2010 as a Technical Note to Applied Engineering in Agriculture.
Christianson, L., A. Bhandari, and M. J. Helmers. Pilot-scale evaluation of denitrification drainage bioreactors: Reactor geometry and performance. Submitted February 3, 2010 to Journal of Environmental Engineering.
Christianson, L. A. Bhandari, and M. J. Helmers. 2009. Emerging technology: Denitrification bioreactors for nitrate reduction in agricultural waters. Journal of Soil and Water Conservation 64:139A-141A.
Lowery, B., C. Cox, D. Lemke, P. Nowak, K. Olson, and J. Strock. 2009. The 2008 Midwest flooding impact on soil erosion and water quality: implications for soil erosion control practices. Journal of Soil and Water Conservation 64:166A.
Luo, W. G.R. Sands, M. Youssef, J.S. Strock, I. Song, and D. Canelon. 2010. Modeling the impact of alternative drainage practices in the northern corn belt with Drainmod-NII. Ag. Water Mgmt. 97:389-398.
Moorman, Thomas B., Parkin, Timothy B., Kaspar, Thomas C., Jaynes, Dan B. 2010. Denitrification activity, wood loss, and N2O emissions over 9 years from a wood chip bioreactor. Ecological Eng. xxx: xxx-xxx. doi:10.1016/j.ecoleng.2010.03.012.
Nelson, K.A., S.M. Paniagua, and P.P. Motavalli. 2009. Effect of polymer coated urea, irrigation, and drainage on nitrogen utilization and yield of corn in a claypan soil. Agron. J. 101:681-687.
Qi, Z. and M. J. Helmers Converting Permittivity measured by PR2 capacitance probe into soil moisture for Des Moines Lobe soils in Iowa. Accepted to Soil Use and Management Dec. 6, 2009.
Qi, Z. and M. J. Helmers. 2009. Soil water dynamics under winter rye cover crop in central Iowa. Vadose Zone Journal 9(1): 53-60.
Riley, K. D., M. J. Helmers, P A. Lawlor, and R. Singh. 2009. Water balance investigation of controlled drainage in non-weighing lysimeters. Applied Engineering in Agriculture 25(4): 507-514.
Schipper, Louis A., Robertson, Will D., Gold, Arthur J., Jaynes, Dan B., Cameron, Stewart C. 2010. Denitrifying bioreactors  An approach for reducing nitrate loads to receiving waters. Ecological Eng. xxx: xxxxxx. doi:10.1016/j.ecoleng.2010.04.008.

Conference Proceedings, Professional Society Papers, or Other Extension and Non-refereed Publications:
Christianson, L., A. Bhandari, M. J. Helmers, and M. St. Clair. 2009. Denitrifying bioreactors for treatment of tile drainage. In: Proceedings of the EWRI Congress, ASCE. [Oral Presentation - Christianson]
Christianson, L. A. Bhandari, and M. J. Helmers. 2009. Woodchip bioreactors: A new nitrate reduction option. Getting into Soil & Water, Iowa Water Center. Vol. 1, pg 13.
Christianson, R.*, M. J. Helmers, P. Lawlor, and D. Lemke. 2009. Impact of fertilizer timing on drainage nitrate levels. ASABE Meeting Paper No. 09-6246. St. Joseph, MI: ASABE. [Oral Presentation  Christianson]
Helmers, M. J., D. Lemke, W. Crumpton, and S. Melvin. 2009. Integrated drainage-wetland landscape systems: A strategy to provide environmental and crop production benefits. Getting into Soil & Water, Iowa Water Center. Vol. 1, pg 4.
Helmers, M. J., S. Melvin, and D. Lemke. 2009. Drainage main rehabilitation in Iowa. In: Proceedings of the EWRI Congress, ASCE. [Oral Presentation - Helmers]
Jaynes, Dan. 2009. Crop yield and nitrate losses from sidedressing N at canopy closure. [abstract]. ASA-CSSA-SSSA. http://a-c-s.confex.com/crops/2009am/webprogram/Session6919.html#top
Jaynes, Dan B., Thorp, Kelly R., James, David E. 2010. Potential water quality impact of drainage water management in the Midwest USA. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #84.
Melkonian, J., L.D. Geohring, H.M. van Es, P.E. Wright, T.S. Steenhuis, and C. Graham. 2010. Subsurface drainage nitrogen discharges following manure application: Measurements and model analyses. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #201.
Nelson, K., C. Meinhardt, and R. Smoot. 2009. Managed Drainage System for Crop Production. Greenley Memorial Research Center Field Day Report. pp. 4-6.
Nelson, K., C. Meinhardt, and R. Smoot. 2009. MU Drainage and Subirrigation (MUDS) Research Update. Greenley Memorial Research Center Field Day Report. pp. 7-19.
Salvucci, A.E., M. Elton, J.D. Siler, W. Zhang, B.K. Richards, L.D. Geohring, L.D. Warnick, A.G. Hay, and T.S. Steenhuis. 2010. The role of curli and cellulose in the transport and survival of Escherichia coli on a Central New York dairy farm. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #161.

08/09/2010

Reported Publications:

Journal Publications:
Christianson, L., A. Castelló, R. Christianson, A. Bhandari, and M. J. Helmers. Hydraulic property determination of denitrifying bacteria fill media. Accepted May 2010 as a Technical Note to Applied Engineering in Agriculture.
Christianson, L., A. Bhandari, and M. J. Helmers. Pilot-scale evaluation of denitrification drainage bioreactors: Reactor geometry and performance. Submitted February 3, 2010 to Journal of Environmental Engineering.
Christianson, L. A. Bhandari, and M. J. Helmers. 2009. Emerging technology: Denitrification bioreactors for nitrate reduction in agricultural waters. Journal of Soil and Water Conservation 64:139A-141A.
Lowery, B., C. Cox, D. Lemke, P. Nowak, K. Olson, and J. Strock. 2009. The 2008 Midwest flooding impact on soil erosion and water quality: implications for soil erosion control practices. Journal of Soil and Water Conservation 64:166A.
Luo, W. G.R. Sands, M. Youssef, J.S. Strock, I. Song, and D. Canelon. 2010. Modeling the impact of alternative drainage practices in the northern corn belt with Drainmod-NII. Ag. Water Mgmt. 97:389-398.
Moorman, Thomas B., Parkin, Timothy B., Kaspar, Thomas C., Jaynes, Dan B. 2010. Denitrification activity, wood loss, and N2O emissions over 9 years from a wood chip bioreactor. Ecological Eng. xxx: xxx-xxx. doi:10.1016/j.ecoleng.2010.03.012.
Nelson, K.A., S.M. Paniagua, and P.P. Motavalli. 2009. Effect of polymer coated urea, irrigation, and drainage on nitrogen utilization and yield of corn in a claypan soil. Agron. J. 101:681-687.
Qi, Z. and M. J. Helmers Converting Permittivity measured by PR2 capacitance probe into soil moisture for Des Moines Lobe soils in Iowa. Accepted to Soil Use and Management Dec. 6, 2009.
Qi, Z. and M. J. Helmers. 2009. Soil water dynamics under winter rye cover crop in central Iowa. Vadose Zone Journal 9(1): 53-60.
Riley, K. D., M. J. Helmers, P A. Lawlor, and R. Singh. 2009. Water balance investigation of controlled drainage in non-weighing lysimeters. Applied Engineering in Agriculture 25(4): 507-514.
Schipper, Louis A., Robertson, Will D., Gold, Arthur J., Jaynes, Dan B., Cameron, Stewart C. 2010. Denitrifying bioreactors  An approach for reducing nitrate loads to receiving waters. Ecological Eng. xxx: xxxxxx. doi:10.1016/j.ecoleng.2010.04.008.

Conference Proceedings, Professional Society Papers, or Other Extension and Non-refereed Publications:
Christianson, L., A. Bhandari, M. J. Helmers, and M. St. Clair. 2009. Denitrifying bioreactors for treatment of tile drainage. In: Proceedings of the EWRI Congress, ASCE. [Oral Presentation - Christianson]
Christianson, L. A. Bhandari, and M. J. Helmers. 2009. Woodchip bioreactors: A new nitrate reduction option. Getting into Soil & Water, Iowa Water Center. Vol. 1, pg 13.
Christianson, R.*, M. J. Helmers, P. Lawlor, and D. Lemke. 2009. Impact of fertilizer timing on drainage nitrate levels. ASABE Meeting Paper No. 09-6246. St. Joseph, MI: ASABE. [Oral Presentation  Christianson]
Helmers, M. J., D. Lemke, W. Crumpton, and S. Melvin. 2009. Integrated drainage-wetland landscape systems: A strategy to provide environmental and crop production benefits. Getting into Soil & Water, Iowa Water Center. Vol. 1, pg 4.
Helmers, M. J., S. Melvin, and D. Lemke. 2009. Drainage main rehabilitation in Iowa. In: Proceedings of the EWRI Congress, ASCE. [Oral Presentation - Helmers]
Jaynes, Dan. 2009. Crop yield and nitrate losses from sidedressing N at canopy closure. [abstract]. ASA-CSSA-SSSA. http://a-c-s.confex.com/crops/2009am/webprogram/Session6919.html#top
Jaynes, Dan B., Thorp, Kelly R., James, David E. 2010. Potential water quality impact of drainage water management in the Midwest USA. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #84.
Melkonian, J., L.D. Geohring, H.M. van Es, P.E. Wright, T.S. Steenhuis, and C. Graham. 2010. Subsurface drainage nitrogen discharges following manure application: Measurements and model analyses. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #201.
Nelson, K., C. Meinhardt, and R. Smoot. 2009. Managed Drainage System for Crop Production. Greenley Memorial Research Center Field Day Report. pp. 4-6.
Nelson, K., C. Meinhardt, and R. Smoot. 2009. MU Drainage and Subirrigation (MUDS) Research Update. Greenley Memorial Research Center Field Day Report. pp. 7-19.
Salvucci, A.E., M. Elton, J.D. Siler, W. Zhang, B.K. Richards, L.D. Geohring, L.D. Warnick, A.G. Hay, and T.S. Steenhuis. 2010. The role of curli and cellulose in the transport and survival of Escherichia coli on a Central New York dairy farm. Proceedings of ASABE's 9th International Drainage Symposium. June 13-17, 2010, Quebec City, Canada. Paper #161.

06/18/2012

06/18/2012

06/12/2013

06/30/2014