132 LEGUMINOUS CROPS 



Uses. Canning or garden peas are used exclusively for 

 human diet, while the field peas are used for both human 

 food and for farm animals. The field peas sold on the 

 market for human food are made up into various kinds of 

 soups, while those used for animal food are usually mixed 

 with oats, barley, wheat, or corn, and ground into meal. 



Rotation. Peas fit well into a rotation as a crop to be 

 sown on sod land once in three or four years. The practice 

 of growing peas for several successive years on the same 

 land invites disease and multiplication of insect enemies, 

 and is strongly condemned. 



SOY BEANS 



The soy bean is a native of southeastern Asia where it 

 grows wild and forms an essential part of the food for the 



Fig 73- A field of soy beans. Note the size of the leaves. 



inhabitants. It was introduced early into Japan and is 

 used there and in China principally as human food. Soy 

 beans were introduced into the Southern States by the 

 United States Department of Agriculture. Until recently 



