RGMartin, you may be correct. My calculations were based upon an article I read written by Mike Rankin, Crops and Soils Agent, University of Wisconsin.....in which he alloted 4.5 pounds of P205 and 25 pounds of K20 removal (per ton of dry matter) of corn stover. My current prices for these two ingredients is .51 per pound for P2o5, and .48 per pound for K2O...effectively totally $14.30 per ton of dry matter removed. Obviously the total yield will have an effect upon the actual per acre cost of removal. The title of the article was "Putting a Value on Corn Stover". Within this article he admits that there are many variables such as moisture content, yield, and leached nutrients due to rain. You are very correct with your concern for erosion and well as the loss of organic matter.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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