492 INVESTIGATION BY CULTURE EXPERIMENTS 



TABLE 102. GEORGIA FERTILIZER EXPERIMENTS WITH COTTON 



by the residual effect of previous applications made in the " ni- 

 trogen test," for example (Table 102). 



The use of fertilizers on corn in Georgia, if profitable at all, is 

 evidently made possible only because the farm price of corn is 

 very high (69 cents as a ten-year average), and the profit from the 



