OCR Text |
Show Animal Fertilizer Contains Necessary Food for Plants By Professor J. C. Hogenson, Extension Agronomist. As time approaches for the E'nr'.'rs of spring work and the planting of spring crops, Tlv: question naturally arises, "Sha'l I apply manure my land from the pile that has bem accumulating accumulat-ing during the winter months? ' Every plant needs food, most Utah soils do not have a sufficient supply naturally available. Without enough food the crops will fail to develop and produce profitably. The application of farm manure supplies the food requirements of growing plants. The following number of pounds of nitrogen, phosphoric acid and potash (the three plant food elements ele-ments which are likely to be lacking lack-ing in farm soils) are found in each ton of ordinary mixed farm manure: nitrogen, 10 pounds; phosphoric acid, 5 pounds; and potash. 10 pounds. In a ton of cow manure there are 12 pounds of nitrogen, three pounds of phosphoric acid, and 9 H: pounds of potash. In horse manure there are 12 pounds of nitrogen, 4 - pounds of phosphoric phosphor-ic acid and 12 pounds of potash. In pig manure there are 10 pounds of nitrogen, 6V4 pounds of phosphoric phos-phoric acid and 9 pounds of potash. po-tash. In sheep manure there are 16 pounds of nitrogen, 7 pounds of phosphoric acid, and 17 pounds of potash. In poultry manure thero are 20 pounds of nitrogen, 18 pounds of phosphoric acid and .10 pounds of potash. In other words it takes 200 pounds of mixed farm manure to produce one pound of nitrogen; 4U(i jxmnds to produce one pound ') phosphoric acid and 200 pounds to prod .ice one pound of potash. All manure should be spread on tha land as soon as possible after it is produced to avoid waste of plant food |