Show wealth put into the tha earth the united states with about 0 6 per cent of t the ie worlds population uses approximately 19 per cent of the worlds annual aal output ot of commercial fertilizer and ranks second only to germany as a producer the worlds annual production Is worth on assumed values or of ICO a ton for nitrogen ly hi the warehouses of the producer and a value of 30 50 a ton each for phosphoric add acid and potash the total amount of plant food used by amerlean american farmers increased 43 per cent from 1911 1914 to 1928 |