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Ed Winkle, soil sample question...
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BigNorsk
Posted 10/23/2012 09:23 (#2656289 - in reply to #2655693)
Subject: RE: Ed Winkle, soil sample question...



Rolla, ND
The P test is not a lb for lb test like nitrate would be, it's a relative test. You add an extra 50 lbs and many soils the following year would show almost no change, plus there is the variability in the soil test.

So it didn't go anywhere, and it can be used by a crop, but if you are thinking what you did should have made a big change in a soil test, well, it doesn't.
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