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| Well if you aren't going believe any of the university or other research then there is not much point in debating the issue. From a scientific stand point the values of the nutrients in the crop removed can be measured pretty accurately in a lab and over a number of years an average was found. I know is that the nutrients that you haul out in the grain has to come from somewhere. If not applied fertilizer then from the soil. If you can get by with not applying replacement values and not lower you soil tests or yields long term then you have pretty special soils. As for econonic returns it pretty had to quantify returns from P&K in any soils other than one testing very low. My recs are based on what I consider sound research and what someones plans are for the future. I don't try to spend somebody's money foolishly and nor am I foolish enough to believe I can save some into prosperity either. | |
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High fertlizer prices and fertlizer placement
