Show use limestone to help yields kentucky experiment station reports report gain of 18 per acre per year tile the experimental field which the kentucky state agricultural experiment station maintains in laurel county furnishes proof of the value of 0 limestone anil and neld add phosphate la in restoring the productiveness of laria lands according to n report of supt bupt J F freeman F reeman on the badly worn soil of the ex peri port mental field in laurel county corn soy boy benns beans small grain and clover grown in rotation where tili utilized zed have yielded crops worth at present prices about 7 per acre each year for the past ten years increased value of crops but where land has received four tons of limestone in the last ten years yeara and acid phosphate at the annual rate of pounds per acre the value of crops from an acre has been increased to an average of 18 per year the tha average av cost of the treatment has haa been per acre per year acid phosphate where used alone at the annual rate of pounds per acre has increased the value of crops chopa per acre over the value of crops grown on unfertilized land the cot of applying the fertilizer in such caw cares was per acre which left a profit of 0 6 per acre limestone used without phosphate has not proved profitable largest returns are to be expected from acid phosphate and limestone used together smaller amount li Is useful although limestone has been used tn in the experiment at tile the rate of two tons ton per acre applied once tn in four years considerably smaller amounts may tx be used need with good results according to mr freeman where it la Is desired desire to jo get clover with but a small amount of mater material at hand a mixture of pounds of finely ground limestone and pounds of acid phosphate per acra la Is sometimes used this mixture can be most conveniently applied through u gh the fertilizer attachment of a grain drill at the time of sowing small grain the clover can then be seeded in the th grain |