Evaluation of different Nitrogen decision guides in fertilizing Corn
Magda Rogalsky, University of Manitoba
Manitoba Corn Growers Association
Manitoba Agriculture nitrogen rate guidelines for corn were developed before 1990 and are out-of-date for current yield levels. Recently North Dakota State University (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. The following study was initiated with the objective to evaluate a number of N decision guides for suitability in fertilizing corn in Manitoba.
Entire findings are available by downloading the report PDF.