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East Central SD | in the soil sample it is telling me that you only have 4ppm Phos correct? then in the recommendation it is asking you to apply 80 units of P2O5. how can the sample ask for P2O5 when it doesn't initially test for it in the first place. this is just how I read the sample not looking for an argument. so next question, how does one know to apply 80 units of P2O5 when the soil test on tests for P....?
Edited by Fast 18 1/7/2014 08:31
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Phosphorus in High PH soils
