16 



CAMPBELL'S SOIL CULTURE MANUAL 



success, but a desire to see true principles fairly tried. 

 Sometimes the farmer starts out bravely to adopt scien- 

 tific soil culture, but then he comes up against something 

 that appears to be contrary to the teachings of his father 



BURLINGTON MODEL FARM 



Crop of Wheat at Holdrege, Neb., in 1906, yielding 51^ bu. 

 per acre testing 64 Ibs. 



or grandfather or a neighbor, and he resolves upon such 

 a variation that he undoes all he has accomplished. 



But the danger to the novice lies chiefly in his failure 

 to study the method enough. He must know it well. 

 The principles of scientific soil culture must be grounded 



