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<blockquote data-quote="Dave" data-source="post: 1538520" data-attributes="member: 498"><p>The K should be at least in the 150-250 ppm range. It does take a lot to get to be too high. Up around the 2,000 ppm is where the problems occur. The soil P should be around 25 ppm. I have seen a lot of good grass growing on a 100 ppm of P soil. The environmentalist want P to be below 30 ppm. They claim P will leach out of the soil. The reality is that it doesn't so much leach. It will most often attach itself to clay particles. If there is erosion those soil particles with the P attached leave carrying the P with it. The result is a sod field can hold a lot more P than a regularly plowed and farmed field.</p></blockquote><p></p>
[QUOTE="Dave, post: 1538520, member: 498"] The K should be at least in the 150-250 ppm range. It does take a lot to get to be too high. Up around the 2,000 ppm is where the problems occur. The soil P should be around 25 ppm. I have seen a lot of good grass growing on a 100 ppm of P soil. The environmentalist want P to be below 30 ppm. They claim P will leach out of the soil. The reality is that it doesn't so much leach. It will most often attach itself to clay particles. If there is erosion those soil particles with the P attached leave carrying the P with it. The result is a sod field can hold a lot more P than a regularly plowed and farmed field. [/QUOTE]
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