264 FORAGE CROPS 
Tennessee and Alabama Stations show that cow- 
pea hay can be very profitably substituted in 
part for concentrated feeds for dairy animals, 
although it was shown to be advisable to use a 
little feed in the ration. 
SOYBEANS 
The soybean is from Japan, where it is one of 
the staple crops. It is now generally grown in 
the southern coast and middle states. Soybeans 
are also grown successfully in Illinois, Michigan 
and Wisconsin, being better adapted to the climatic 
conditions of those states than cowpeas. The soy- 
bean has a strong central root, stiff stems, broad 
leaves, and somewhat resembles the ordinary bean, 
although it is larger and bushier in form. The 
plants may be dwarf and early maturing, or late 
and tall, but in no ease do they have the vining 
and trailing characteristics of cowpeas. They are 
strictly upright plants. There are a number of 
varieties. The Green seems to be the variety most 
gener lly used. 
Seeding, growth and use 
The plant resembles the cowpea in many of 
its characteristics; namely, that it should not 
be seeded until the soil is warm, and when grown 
