|Fall Testing: Evaluating Nitrogen Management|
Research conducted at Purdue University and Iowa State University (ISU) show that the nitrogen (N) status of a corn crop can be assessed by measuring nitrate concentrations in the lower portion of cornstalks at the end of the growing season.
Surveys indicate that a high percentage of corn fields receive substantially more N fertilizer than is needed. Click here for Four Facts about Corn Stalk Nitrate Analysis.
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