AFREC ANNUAL REPORT PROJECT TITLE: Evaluation of Variable Rate Nitrogen Technologies for Corn in Minnesota
نویسندگان
چکیده
Improving nitrogen (N) use efficiency in crop production is important for obvious economic and environmental reasons. Nitrogen fertilization of corn usually provides the greatest return on investment of any crop input; therefore, farmers and their agricultural advisors must insure adequate N is available for the crop to maximize yields and economic returns. Soil contains N in organic (soil organic matter and microorganisms) and inorganic (ammonium and nitrate) forms. Nitrate is mobile in the soil and can be lost due to leaching and denitrification both of which have environmental consequences. Minimizing N loss and maximizing crop productivity is critical for increasing nitrogen use efficiency (NUE) in corn.
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