ROTATION OF CROPS 



119 



field starts over again with the same crop. The cow- 

 peas grown between the corn rows fertilize the oats, 

 which is the next 

 crop. The cow- 

 peas planted just 

 after the oats are 

 cut may be 

 picked or cut for 

 hay or grazed. 

 But no matter 

 what way they 

 are used, they fer- 

 tilize the succeed- 

 ing crop of cot- 

 ton. Of course, 

 phosphate, and 

 sometimes pot- 

 ash, will need 

 to be purchased 

 to help fertilize 

 the crops. Thus 

 cotton following 

 cowpeas on only 

 one third of the 

 cultivated land 



FIG. 73. COWPEAS SOWN BETWEEN THE Rows OF 

 CORN 



will usually produce as many bales as when half or more 

 of the cultivated land is used for cotton and only a few 

 cowpeas grown. 



Each year let corn follow cotton ; sow oats or wheat 

 on the field that has just borne a crop of corn and cow- 



