potash

Growing Conditions Affecting Potassium Availability

corn leaf with potassium deficiency (chlorosis starting at leaf margin)
Growing Conditions Affecting Potassium Availability Potassium (K) is one of the three primary macronutrients that all plants need to mine from the soil that is necessary for proper growth. On a fertilizer grade analysis, it is the third number listed (in the form of potash) behind phosphorus and...
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