296 CAMPBELL'S SOIL CULTURE MANUAL 







CHAPTER XLI. 

 PROFIT OF SCIENTIFIC SOIL CULTURE 



The only way to determine just how profitable scientific 

 soil culture is as compared with the old way is to make the 

 test on the farm but we give here a 2-year comparison as a 

 help to those who want to know the difference. The simple 

 and direct application of scientific soil culture involves one 

 crop in two years. This is not always the case, for it may 

 be two crops in three years or three in four. But assuming 

 that to get ideal results it is necessary to grow just one crop 

 in two years, we may then compare this with two ordinary 

 crops in the same two years and reach a conclusion that 

 will mean something. 



We give below a fair estimate of the cost, results and 

 profits of a 2-year period under the scientific method and 

 the old way. Average prices are paid for labor in both 

 cases and we have tried to be conservative. It may be 

 felt by some that we have placed the wheat yield too high 

 under the scientific method, but we have really discounted 

 actual results and made allowance for imperfections. 



Wheat yields in the dry country have been, under the 

 Campbell method, as much as 60 to 67 bushels to the acre. 

 We have figured on 50 bushels. But even if this should be 

 cut materially there still is margin for a nice profit. All 

 will depend upon whether or not the work is rightly done. 

 We give a fair estimate on the cost and profits of two fields 

 of 100 acres each, one by the old method and one by the 

 Campbell method as follows: 



