26 
BULLETIN 696-, U. S. DEPARTMENT OF AGRICULTURE. 
Figure 4 throws into relief the relationship of these factors. It 
will be observed that often areas of high price show minimum net 
returns, higher prices being offset either by high costs of production 
or low yields in bushels to the acre. Varying land rental or interest 
charges, also costs of commercial fertilizer, enter into the cost factor. 
In the upper illustration on figure -i prices and costs per bushel are 
given, and in the lower the data are upon an acreage basis. 
The New England States stand out prominently with highest 
prices per bushel and highest production per acre. But these are 
offset by maximum costs of production (in which high values of com- 
mercial fertilizer enter) , with a resulting low ratio of money returns. 
