Soil culture and modern farm methods . Field of Alfalfa on the Deere Midvale Farm Composition of Farm Manure Barnyard manure is composed of excrements, urine and Htter. Theamount of plant food in a ton depends upon the amount of water it con-tains, the kind of litter used, the feed given the animal and the kind ofanimal. Average barnyard manure contains per ton— 10 pounds of nitrogen From 6 to 7 pounds of phosphoric acid From 12 to 16 pounds of potash TABLE NO . 4 .. COMPOSITION OF LITTER PER TON Pounds Nitrogen Pounds Pounds Potash Whpat, Oat & Rye Straw _ Barley Straw Buckwheat Str
Soil culture and modern farm methods . Field of Alfalfa on the Deere Midvale Farm Composition of Farm Manure Barnyard manure is composed of excrements, urine and Htter. Theamount of plant food in a ton depends upon the amount of water it con-tains, the kind of litter used, the feed given the animal and the kind ofanimal. Average barnyard manure contains per ton— 10 pounds of nitrogen From 6 to 7 pounds of phosphoric acid From 12 to 16 pounds of potash TABLE NO . 4 .. COMPOSITION OF LITTER PER TON Pounds Nitrogen Pounds Pounds Potash Whpat, Oat & Rye Straw _ Barley Straw Buckwheat Straw Millet Straw to to to 234! Marsh Hay 54. Leaves The followingthe approximate table compiled from Hopkins Soil Fertility, givesmaximum amount of plant food removed from the soil: TABLE NO. 5 Product Quantity PoundsNitrogen PoundsPhos. Acid. PoundsPotash Food Corn Grain Corn Stover Total Crop____ 50 bu.• 3000 lbs. 5024 74 26. 121. Oats Grain Oat Straw Total Crop 50 lbs. 5 8. 34. Wheat Grain Wheat Straw Total Crop 25 lbs. 48. 8. 29. 85. Cotton Lint Cottonseed Cotton Stalks Total Crop 500 lbs. 84. 2. 41. Potatoes 150 bu. 45. 83. Sugar Beets_. 10 tons 50. 9. Apples 300 bu. 2 5 The above table gives the amount of each of the three essentialelements removed from an acre of soil by some of the principal farmcrops. To return to the soil all of the plant food removed and some addi-tional, the farmer should apply
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Keywords: ., bookcentury1900, bookdecade1910, bookidso, booksubjectagriculture
