Northwest and Allee Research and Demonstration Farms

Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage

Authors: John Sawyer (Iowa State University) , Matthew Helmers (Iowa State University) , Carl Pederson (Iowa State University) , Terry Tuttle (Iowa State University)

  • Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage

    Northwest and Allee Research and Demonstration Farms

    Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage

    Authors: , , ,

Abstract

Corn belt corn and soybean producers are increasingly challenged to maximize crop production while addressing the contributions farm practices make to the Gulf of Mexico hypoxia. Based on the need for nitrate-nitrogen (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 four years of crop yield data.

How to Cite:

Sawyer, J. & Helmers, M. & Pederson, C. & Tuttle, T., (2019) “Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage”, Iowa State University Research and Demonstration Farms Progress Reports 2018(1).

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Published on
25 Apr 2019