Impact of 4R Management on Crop Production and Nitrate-N Conc. on Tile Drainage Plots
- Matthew J. Helmers (Iowa State University)
- Carl H. Pederson (Iowa State University)
Abstract
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 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 progress reports on crop production impacts.
How to Cite:
Helmers, M. J. & Pederson, C. H., (2026) “Impact of 4R Management on Crop Production and Nitrate-N Conc. on Tile Drainage Plots”, Iowa State University Research and Demonstration Farms Progress Reports 2025(1), 35-36.
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