72 PRACTICAL CORN CULTURE 
ularity during the last five years. It is almost as efficient a 
soil builder as clover and is a splendid crop for hay. The 
seed sells for two and three dollars per bushel and the yield 
is from eight to twenty bushels per acre. On our own farms 
we are growing soy beans on the ground that formerly went 
in oats. 
As stated in the chapter on rotation, soy beans will, one 
year with another, grow as big a money crop as oats besides 
building up the land instead of running it down. During the 
HARVESTING SOY BEANS 
last two years, we have grown one hundred and twenty acres 
of soy beans and just enough oats to feed our horses. The 
seed was threshed by the ordinary grain separator although 
a regular pea or bean huller would be more satisfactory. 
Our yields have averaged about ten bushels per acre and the 
surplus seed sold at $2.50 and $3.00 per bushel. 
When the grain separator is used the concave teeth should 
all be removed and the speed of the machine reduced to about 
one-half of that ordinarily used in threshing grain. The tail 
