Jim, I don't want to start an argument, but I have been cutting silage off ground in a continuous corn on corn rotation for about 25 years now. I also fertilize to test, and put manure on every second or third year, I use no-til practices, and the ground gets a cover of cereal rye every year, although this year I am experimenting with Daikon radishes as a cover. I average over 20 tons per year on silage, and after filling the bunks, combine any extra acreage. I can't go by last year because of a drought in this area, but year before last I averaged 186 bushels, and last year just over 100 off the combine. The soil is just a growing medium. If the nutrients are put on, we have a good harvest every year. You are right, though. It does increase the management load- but with the cost of ground, fertilzer is cheaper than a poor yield on mined soil. It pays to keep the fertility up.
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Today's Featured Article - The Ferguson System Principal An implement cutting through the soil at a certain depth say eight inches requires a certain force or draft to pull it. Obviously that draft will increase if the implement runs deeper than eight inches, and decrease if it runs shallower. Why not use that draft fact to control the depth of work automatically? The draft forces are
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