54 THE BOOK OF CORN 



upper layers of the ground. It should be applied to 

 pasture during the winter so as not to interfere with 

 the growth of the grasses. 



Commercial fertilisers are as yet but little used for 

 corn in the great corn belt of the west, but are largely 

 employed with profit for corn in the eastern and south- 

 ern parts of the United States. This subject is dis- 

 cussed in another chapter. 



