44 THE NEW BUSINESS OF FABMING 



horse team and a $100.00 digger will put the po- 

 tatoes from six acres on top of the ground 

 inside of ten hours. 



Besides the direct saving in costs, which 

 amounts to many times the land rent, is the item 

 of insurance ; for, when a crop is ready to har- 

 vest, the sooner it is put under cover the fewer 

 the chances for loss from the elements. 



The problem of Germany has been to be self- 

 sustaining on a given amount of land ; the prob- 

 lem of the American farmer is entirely differ- 

 ent. Each knows his own business. 



The following table of costs of increasing the 

 wheat yield is taken from a report of Sir John 

 Lawes and covers experiments over a period of 

 fifty years. Wheat is figured at a dollar a bushel 

 and 43 pounds of nitrogen at $6.50. 



Value Cost of 



