Show ANIMAL fertilizer CONTAINS NECESSARY ESSAnY FOOD FOR PLANTS by prof J C II Il extension agronomist As time approaches for or the starting of 0 spring work and the planting of spring crops the question naturally arises shall I 1 apply manure to my land from the pile that has been accumulating during the winter months every plant needs food most utah soils do not have a sufficient lelent supply naturally available without enough food the crops will tall fall to develop and produce profitably the application of 0 farm manure supplies the food requirements ot of growing plants plait s the following number of pounds ot of nitrogen phosphoric acid and potash the three plant food elements which are likely to be lacking in farm arm soils are found in each ton ot of ordinary mixed farm arm manure nitrogen 10 pounds phosphoric acid 5 pounds and potash 10 pounds in a ton ot of cow manure there are 12 pounds of nitrogen 3 pounds ot of phosphoric acid and avs 9 pounds of 0 potash in horse manure there are 12 pounds ot of nitrogen 4 pounds ot of phosphoric add acid and 12 pounds of potash in pig manure there are 10 pounds ot of nitrogen 6 pounds of phosphoric acid and 9 pounds of potash in sheep manure there are 16 pounds ot of nitrogen 7 pounds ot of phosphoric add acid and 17 pounds ot of potash in poultry manure there are 20 pounds of nitrogen IS 18 pounds of phosphoric acid and 10 pounds ot of potash in other words it takes pounds of 0 mixed farm manure to produce one pound ot of nitrogen pounds to produce one pound ot of phosphoric add acid and pounds to produce one pound ot of potash all manure should be spread on I 1 the land as soon as possible after it is produced to avoid waste of 0 plant food |