Show phosphorus FOR THE LAND thousand pounds of raw rock phosphate applied per acre once in four years la lof favored phosphorus can caa be secured la in no other way than to buy it in its cheapest form it costs three to four ants a pound there are 17 pounds in bushels of corn it 50 bushel crops are raised about 30 cents centa per acre annually would restore tho the phosphorous ph orous erous this is merely the cost of main maintenance maintenon and the fertility would not increase this element usually limits the crop more should be supplied than Is taken oft it Is considered 1000 pounds of raw rock phosphate applied per acre once in tour four years la Is a reasonable expenditure building up the soil boll rapidly and profitably this will supply phosphorus about twice as fast as aa it will be removed in largo large crops illinois Illi noid farmers institute |