Corn belt crop producers are increasingly challenged to maximize corn and soybean production while addressing the contributions farm practices make to the Gulf of Mexico hypoxia. Based on the need for nitratenitrogen (N) reductions to meet water quality goals, new management practices are needed to reduce nitrate-N losses at minimal cost and maximum economic benefits. This ongoing 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. This is a summary of five years of crop yield data and four years of water quality data.
How to Cite:
Waring, E. & Pederson, C. H. & Helmers, M. J. & Sawyer, J. E. & Tuttle, T., (2020) “Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage”, Iowa State University Research and Demonstration Farms Progress Reports 2019(1).