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Southeast WI | Thank you for trying Lucas and thank you for contributing to AgTalk over the years. Your words need to be thought about by the contributors on this site and then that should open more dialogue with you on how soil testing actually works and the limitations thereof. Focus on correlation is my advice.
"The nature of P and how it is taken by the plant, how it behaves in soil, and how crops respond doesn't lend itself well to thinking about it as some quantity of lb/ac. It's the concentration of P in the soil (ppm) that is most tightly correlated to crop response." LHaag
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Formula for converting p1 to available phosphorus?
