Soil culture and modern farm methods . zer to place on his land. It will be seen that the value of all of the fertility permanentlyremoved by the corn is only $ and .81 percent of that is nitrogen,an element easily replaced by planting legumes. The above figuresshow that only 28 cents worth of the reserve stock of potash and phos-phorous is permanently taken from the soil in one ton of corn. TABLE NO. 2 .. PLANT FOOD CONTAINED IN A TON OF FRESH DUNG Source of Manure Pounds Nitrogen Poui ds Pounds Potash 106 to 912 to 151532 7 5 to 6 910 to 1530 9 Cow 9 to 10 6 4 Sheep 11 8 Poultr
Soil culture and modern farm methods . zer to place on his land. It will be seen that the value of all of the fertility permanentlyremoved by the corn is only $ and .81 percent of that is nitrogen,an element easily replaced by planting legumes. The above figuresshow that only 28 cents worth of the reserve stock of potash and phos-phorous is permanently taken from the soil in one ton of corn. TABLE NO. 2 .. PLANT FOOD CONTAINED IN A TON OF FRESH DUNG Source of Manure Pounds Nitrogen Poui ds Pounds Potash 106 to 912 to 151532 7 5 to 6 910 to 1530 9 Cow 9 to 10 6 4 Sheep 11 8 Poultry 16 to 20 TABLE NO. 3 .. PLANT FOOD CONTAINED IN A TON OF FRESH UEINE Source of Manure Pounds Nitrogen Pounds Pounds Potash Horse Cow Swine Sheep .-- 24. 16. 6. 28. 30. 40. A ton of drainage from gutter behind milk cows contains- 20 pounds of nitrogen 5 pounds of phosphoric acid17 pounds of potash Drainage from a manure heap per ton contains—30 pounds of nitrogen _2 pounds of phosphoric acid98 pounds of potash. 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 6.
Size: 2142px × 1166px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidso, booksubjectagriculture
