Supposed you wish to apply two pounds of potassium expressed as K20 to a greenhouse bed used for cut flower production. If you plan to use 20-20-20 fertilizer, how much should you apply?

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1. Supposed you wish to apply two pounds of potassium expressed as K20 to a greenhouse bed used for cut flower production. If you plan to use 20-20-20 fertilizer, how much should you apply?