292 IOWA DEPARTMENT OF AGRICULTURE. 



college farm is upland. In 1898, thirty-five acres of soy beans were 

 grown, with an average yield of thirteen bushels per acre. In 

 1899 seventy acres gave an average yield of fifteen and one- 

 half bushel per acre. With sufficient moisture to germinate 

 them, a crop of soy beans can be grown after wheat and oats 

 have been harvested. In 1896, the yield on the college farm on ground 

 after wheat was eight bushels per acre; in 1898, six and one-fourth 

 bushels. With linseed meal at twenty-five dollars per ton, these crops 

 after wheat would be worth $6 and $4.68 per acre. In addition to these 

 returns we received the benefit of increased yields from succeeding 

 crops. 



"Farmers with better ground than ours report a yield of twenty 

 bushels per acre, using our seed." 



From the same bulletin we gather a summary of experiments as to 

 the value of soy beans for feed for live stock. Experiment No. 1, pigs 

 weighing 188 pounds, fed one-fifth soy bean meal and four-fifth Kaffir 

 corn meal, showed a saving of 13 per cent in the amount of feed re- 

 quired to make 100 pounds of gain: 



Experiment No. 2, pigs weighing 122 pounds, fed the same ration, 

 showed a saving of 27 per cent by adding beans to the Kaffir corn. 



Experiment No. 3 showed a gain of 31 per cent by adding soy beans 

 to Kaffir corn in the proportion of one-third soy bean meal to two-thirds 

 Kaffir corn meal and showed a gain of 24 per cent by adding the bean 

 meal to corn meal. 



Experiment No. 4, hogs weighing 126 pounds, fed nine weeks on a 

 ration of four-fifths Kaffir corn meal and one-fifth soy bean meal, showed 

 a saving of 37 per cent; that is, 37 per cent less grain was required for 

 100 pounds of gain. This experiment was repeated on hogs weighing 

 140 pounds, fed fifty days, and showed a saving in feed of 33 per cent by 

 adding soy beans to Kaffir corn. 



From all that we can learn, there is a gain not only in weight, but 

 in thrift, muscle, and vitality by feeding soy beans to hogs intended for 

 breeding purposes. Some farmers plant their soy beans at the last plant- 

 ing of corn by drilling or dropping them by hand between the rows from 

 four to six inches apart, and cover them when they plow the corn the 

 last time, then hogging the patch down. 



COW PEAS AND SOY BEANS IN CORN. 



A. D. Shamel in Breeders' Gazette. 

 A large number of inquiries in regard to sowing cow peas and soy 

 beans in corn have been received this spring. Our experience has been 

 that these crops, by adding directly to the supply of nitrogen through 

 the root tubercles, are of great value to the fertility of the stiil and 

 through their extensive root development break up and loosen the sub- 



