148 



COBN CEOPS 



5. The mechanical condition of heavy clay soils is 

 improved. 



According to Bulletin 64 of the Bureau of Soils, United 

 States Department of Agriculture, one hundred sixty-eight 

 experiments with lime for corn have been reported by 

 experiment stations. The average increase reported is 

 3.2 bushels per acre at a cost of $8.91 for the lime. For 

 corn soils in general hming would not pay, but, on the 

 other hand, certain experiments show large profits from 

 the use of lime. 



The Tennessee station reports an increased yield, at less 

 cost per bushel, than for any of a number of mineral fer- 

 tilizers tried in comparison, as shown in the following 

 table : — 



TABLE XXXIII 

 Fertilizers with Hickory King Corn, 1901-1902 



At the Ohio station ' the addition of Hme increased the 

 3deld of corn 10 bushels per acre, or about 30 per cent, both 



1 Ohio Agr. Exp. Sta., Bui. 159 : 173. 



