Frank Mann's Soil Book; How to Double the Production of Your Farm Every Year ..
The book Frank Mann's Soil Book; How to Double the Production of Your Farm Every Year .. was written by author Mann, Frank I. (Frank Irving), 1854-1937 Here you can read free online of Frank Mann's Soil Book; How to Double the Production of Your Farm Every Year .. book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Frank Mann's Soil Book; How to Double the Production of Your Farm Every Year .. a good or bad book?
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Where nitrogen and vegetable matter are very defi- cient a short rotation is necessary. Mr. A. P. Schroeder has had excellent results on the poor unglaciated hill land of Pulaski county, in a four-year rotation of corn, cowpeas, wheat and clover, with both legume crops left on the land and plowed under with mineral treatments. Though this ro- tation has not been run many years, his average yields of grain are exceeding the average yields of the dark prairie corn belt. Where the soil is not extr...emely deficient in nitrogen or vegetable matter, a three-year rotation is a good one, consist- ing of a cultivated grain crop, a small grain crop and the legume crop — corn, oats (or wheat) and clover. On the bet- ter corn belt land where nitrogen is not much deficient, but where the vegetable matter in the soil is so far decayed as to have insufificient activity of decomposition, and where the principal effort is to maintain and not largely increase the nitrogen, a four-year rotation will serve quite well until too much further depletion has taken place.
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