Show wealth put into the earth the united states with about 0 per cent of the worlds population uses apar approximately 10 19 per cent of the worlds annual output of commercial fertilizer and ranks second only to Germi germany iny as a producer the worlds annual production Is s worth 1 no on assumed values baluca of a ton for nitrogen in the tha warehouses of the producer and a value of 50 a ton each for phosphoric acid and potash the kotul amount of plant food use used by amerlean american farmers increased 45 4 per cent from 1914 to 1028 |