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Russia, using bacteria instead of fertilizer, how can it work?
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Cougar
Posted 8/13/2011 12:09 (#1910200 - in reply to #1910137)
Subject: 30 lb/ac of P & K for 200 bushel corn?


S. IL
it doesnt sound like your in agreement with current research alright. Check the link below on the research pertaining to crop removal.

Using that research below, 200 bushel corn (just grain) will remove 70 lb per ac of P2O5 (+/-140 lb per ac of DAP) and 50 lb per ac of K2O (+/- 83 lb per ac of potash). Your stating 200 lb of corn removes 30 lb of P and K?????

http://www.extension.umn.edu/cropenews/2004/04MNCN26.htm
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