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Evaluation of Nitrogen Decision Guides for Fertilizing Corn in Manitoba

Corn Nitrogen Rate Study

  • Start date: 2016
  • Project Length: 1 Year
  • Project Status: Complete


Manitoba Agriculture nitrogen rate guidelines for corn were developed before 1990 and are out-of-date for current yield levels. Recently NDSU has released N rate guidelines for corn and a number of in-crop scouting measures can be used to assess sufficiency and need for more N. A study was initiated to evaluate a number of N decision guides for suitability in fertilizing corn in Manitoba. Read the 2016 results here.