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3-18-18 as a substitute for Dry P&K on bean ground?
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IH4186
Posted 11/25/2021 10:42 (#9340546 - in reply to #9340347)
Subject: RE: 3-18-18 as a substitute for Dry P&K on bean ground?



Clarke Co, Iowa
You are not giving nearly enough information to answer your question. First how much actual P and K are you putting on per acre? Next what does a gallon of that liquid fertilizer weigh? (I think in the area of 13 pounds per gallon.) Given that each gallon has about 2and 1/3 pounds of P and K each. 50-bushel beans use up 42 pounds of P and 65 pounds of K. So, it only takes about 27 gallons of 3-18-18 to put on 65 pounds of K. Anything less and you're mining the soil.
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