276 FIELD CROPS FOR THE COTTON-BELT 



composition of different samples is very ununiform. The 

 average of American analyses is given by Hunt as follows : 



TABLE 28. AVERAGE COMPOSITION OF DIFFERENT PARTS OF THE 

 OAT PLANT : 



The oat kernel is richer in protein than that of any other 

 cereal. The straw contains a higher percentage of protein 

 and less crude fiber than wheat or rye straw. 



The draft on the important fertilizing constituents made 

 by the oat crop is shown below: 



TABLE 29. POUNDS OF NITROGEN, PHOSPHORIC ACID AND POTASH 

 REMOVED FROM THE SOIL BY A 40-BusHEL CROP OF OATS 2 



1 Hunt, T. F., " Cereals in America," p. 284. 



2 Duggar's " Southern Field Crops," p. 5, as calculated from data 

 in Hopkins' " Soil Fertility and Permanent Agriculture." 



