430 PEAS, BEANS, VETCHES, PEANUTS 



at the Michigan Station, it was found that plants grew quite well 

 without inoculation, but the inoculated plants were found to be much 

 richer in nitrogen. It is generally considered advisable to inoculate 

 to secure best results. 



Utilizing the Crop. Soy bean seed is very rich in protein, 

 usually carrying from twenty-five to thirty per cent. The ground 

 soy bean meal is therefore an excellent protein concentrate to use in 

 grain rations for live stock. The seed is also very rich in oil, and the 

 manufacture of soy bean oil is an important industry in Manchuria. 

 The oil can be used in the manufacture of paints and also for culinary 

 purposes. The residue, after the oil is extracted, known as oil cake, 

 is very rich in protein, and used for stock feed. In the Orient, the 

 seeds are used extensively as human food, and also in the manufac- 

 ture of the well-known suey sauce. 



The forage cut green is easily cured into hay, although the hay is 

 generally considered somewhat coarse. It is readily eaten by all 

 kinds of stock and considered about as valuable as good clover or 

 alfalfa hay. 



FIELD PEAS 



There is very little difference between what is known as the field 

 pea and the common garden pea. The garden pea, however, usually 

 has white flowers and light-colored seed, while many of the field peas 

 have colored flowers and usually rather yellow seeds. Peas are 

 found growing wild throughout the Mediterranean district, and seem 

 to have been cultivated from very early times principally for human 

 food. Field peas vary in height from two to five feet ; the stem is 

 weak, and if planted thin, the vines are usually prostrate on the 

 ground. When field peas are sown thickly they usually cover the 

 ground with a mass of vines from one to two feet deep. 



Adaptations. Field peas are all summer annuals, but are 

 resistant to frosts and even light freezing. They can be grown as 

 winter crops in regions where heavy freezing never occurs. In the 

 region, however, where they are grown, they are always sown in the 

 spring. 



Field peas are very partial to cool summer weather, and are 

 seldom grown south of New York State or Minnesota, except in 



