Late season cornstalk nitrate testing is a reliable means to determine if the rate of nitrogen you applied to corn was low, high or in the optimum range. Though it is evaluation in retrospect, it can still help guide application rates toward that ever-moving-target for next year and beyond. View our video demonstration to see and hear the important things you need to know when doing this test.
For complete details, including the interpretation of results table and to download, see our nitrate test fact sheet.
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