194 FUNDAMENTALS OF AGRICULTURE. 



due in part to the fact that in some portions of the 

 world the varieties cross readily, thus giving rise to 

 new varieties. When cowpeas are grown alone, the 

 most common practice is to broadcast them on wheat 

 or oat stubble. Another common practice is to plant 

 them in corn at the time of the last cultivation. 

 Where corn is grown for ensilage, many farmers also 

 grow cowpeas in the corn, as the mixture makes a bet- 

 ter ensilage than corn alone. Cowpea varieties are 



CORN AND COWPEAS. 



distinguished in part by the color of the seeds, which 

 may be white, buff, pink, red, black, marbled or speck- 

 led. Various combinations of these colors also occur. 

 Cowpeas are usually planted from the middle of May 

 to the first of June. When planted earlier or on very 

 rich land, the tendency is to go largely to vine. When 

 planted late on poor soil, they go more largely to seed. 

 Soy Bean. This plant is a native of Asia, and is 

 largely grown by the Chinese and Japanese for food. 

 In the United States it is being grown more and more 



