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P Application Rate Recommendations
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Roger416
Posted 12/4/2013 17:32 (#3490991 - in reply to #3487899)
Subject: Re: P Application Rate Recommendations


gmoney,

As you are in Wisconsin this 2 works could be helpful for you.

On next link see page 8 Table 8 with a guide to know how recommendations are done in Wisconsin.

http://www.soils.wisc.edu/extension/pubs/A3340.pdf

and on this read the first 13 pages it is very interesting, they assume 18 lbs/ac of P2O5 is necessary to increase P test by 1 ppm.

http://www.soils.wisc.edu/extension/materials/P_Basics.pdf

With these works now you could imagine why your co-op told you to use 340 lbs/ac to cover removal and build up.
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