Northwest and Allee Research and Demonstration Farms
Corn Belt corn and soybean producers are increasingly challenged to maximize crop production while addressing the contributions farm practices make to Gulf hypoxia. Based on the need for nitrate-N reductions in surface water systems to meet water quality goals, new management practices are needed to reduce nitrate-N losses at minimal cost and maximum economic benefits. This three-year field research and demonstration project is evaluating various promising N management methods and technologies by documenting the nitrate-N export and crop yield from various systems.
Helmers, Matthew; Sawyer, John; and Pederson, Carl
"Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage,"
Farm Progress Reports: Vol. 2016
, Article 119.
Available at: http://lib.dr.iastate.edu/farmprogressreports/vol2016/iss1/119