Sampling time for the end-of-season cornstalk test is rapidly approaching. Basic information for doing the test is provided in extension publication Pm 1584, Cornstalk Testing to Evaluate Nitrogen Management, but here are five additional tips for using the test this fall.
Iowa State University
Blackmer, Alfred M., "Testing cornstalks for N this fall" (1998). Integrated Crop Management News. 2256.
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