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| You guys are guessing all over the place. Find a web site such as the International Plant Nutrient Institute (IPNI.com) that shows symptoms of nutrient deficiencies in corn. If this is on the older leaves, it is a severe case of potassium deficiency. Potassium deficiency starts showing as a mild yellowing around the edges of older leaves, and as the deficiency becomes more severe, the yellowing around the leaf edges becomes more chlorotic until in extreme K deficiencies, the chlorotic tissue dies. | |
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corn issue (pics)
