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MASS. EXPERIMENT STATION BULLETIN 309 



corn and beans giving one stalk of corn to three of beans per foot of row gave 

 the largest total yield of dry matter and protein. With perfect germination, 

 two-thirds as much soybeans as corn will give this ratio. This is for so\ beans 

 of medium size, and due allowance should be made for large or small seeded 

 varieties. 



Sudan grass is an excellent crop to grow with soybeans, for not only a higher 

 yield but a better-balanced forage is obtained. The best results are obtained 

 by seeding with a grain drill using about 60 pounds of soybeans and 10 pounds 

 of Sudan grass to the acre. 



Millet and soybeans are sometimes used as a forage mixture. Japanese millet 

 may be broadcast at the rate of 10 to 15 pounds per acre between rows of soybeans 

 after the first or second cultivation. The earlier start of the beans prevents their 

 being smothered b\- the more rapidh- growing millet, and the millet is useful in 

 holding weeds in check. 



Figure 4. Soybean Root Nodules — the Reason tfiat Three 



Tons of Hay Can Be Crown on Good vSoil Without the Use of 



Nitrogenous Fertilizer. 



HOW TO GROW THE CROP 



Soil Reqiiirewoit. — The soxbean is adapted to a wide range of soil types, but 

 may be expected to do best on well-drained sandy loams and sands. Anv soil 

 that will grow good corn will grow good soybeans, and the two crops have much 

 the same range in length of growing season. Soybeans have a little wider range 

 and a greater tolerance for unfavorable soil conditions. Though markedly 



