lU 



AGUiCULTUKi:. 



The figures given show the approximate losses on a 

 i6o-acre farm under the different systems of farming. 

 With stock- and dairy-farming, as well as partly in mixed 

 grain- and general farming, the loss of nitrogen may be 

 avoided by growing clover. In stock- and dairy-farming, 

 therefore, no loss of fertility will occur under these con- 

 ditions when all the skim-milk is fed on the farm and a 

 part of the grain is exchanged for more concentrated milled 

 products, but there will on the contrary be a constant 

 gain of fertility to the soil. (See Bull. 41, Minn. Exp. 

 Station.) 



AVERAGE CHE31ICAL. C03IP0SITI0N OP SOILS. 



(King.) 



