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Show Less Bulky Fertilizers Encouraged by Farmers Higher concentration ' of plant food In mixed fertilizers, than was customary cus-tomary six years ago, has resulted in Ohio farmers buying 20 per cent more plant food In commercial fertilizer In 1928 thar they bought In 1922, while paying only 8 per cent more freight and bagging charges, E. E. Barnes, of the soils department of the Ohio State university, has checked the tendencies ten-dencies In the use of ft-rtlllzer on Ohio farms, through fertilizer sales reports made to the state department of agriculture. ag-riculture. "Actual tonnage of fertilizing material ma-terial purchased In 1028 la only 2 per cent greater than the tonnage purchased pur-chased In 1922," says Barnes. "But .this Is not a true picture o' what has happened. Along with this small Increase In-crease In tonnagq, thc-ie has been an Increase In the concentration of the fertilizers sold, which has made the sales of total plant food materials In 1928 increase 20 per cent over the same sales in 1922." - - Barnes' check shows that the sale of phosphoric acid increased 9 per cent In the six-year period; sales of potash Increased ICO per cent, and sales of nitrogen increased 121 per cent. |