166 THE BUSINESS OF FARMING 



ply to your soils should be governed by the con- 

 tents of your pocket book, for even the application 

 of as much as ten tons to the acre would result 

 in no harm but much profit. 



SAW BOCK PHOSPHATE, POTASH AND NTTKATE OF SODA. 



Raw rock phosphate finely ground, of the best 

 quality, applied in amounts from three hundred 

 pounds up to a ton to the acre, and used in con- 

 nection with animal and green manuring crops, 

 aids much in soil building and fertility mainten- 

 ance. 



Potash and nitrate of soda are also valuable 

 aids. 



COMMEKCIAL FEKTILIZEKS. 



The marketing and use of commercial fertilizers 

 have risen to an immense volume in the business 

 of farming. While all sections of our country are 

 using it, yet some sections use it in immense quan- 

 tities. It is a subject that requires the most care- 

 ful consideration. If it is a valuable aid to the 

 business of farming, then the fact should be uni- 

 versally known that the soil may receive more of 

 its benefits. But if there is no merit in its use, 

 certainly those who are engaged in the business of 

 farming ought to know it, that the great waste of 

 its use be stayed. 



We have tried to consider this subject free from 

 bias or prejudice. We do not deal directly or in- 

 directly in any article of trade or commerce pro- 

 posed as a substitute for commercial fertilizers. 

 We have done much experimenting with it, and 

 have studied everything upon the subject we could 



