| SWMOSEEDGUY - 3/30/2025 17:17
22.5 ppm. If below that, take 22.5 minus observed level, times 6 gets total lbs of p2o5 to build.
Nebraska equation is (17-bray1 ppm test) *6.
Example of a field with 13 ppm would be 17-13*6=24...
We've all been lied to by the fert companies. 100 lbs of map or 125 lbs of 40 rock is all most need and it will build in the soil. The rest just gets tied up. |