Choosing a Forage Crop 



181 



not only as a soil builder, but as a furnisher of protein to 

 balance corn, is strikingly shown when the results of dry 

 lot feeding are compared with those from the forage 

 lots. There may be more economical methods of balanc- 

 ing corn in the South, but that this is one of them seems 

 clear. In the corn-belt, pigs foraging the mature soy- 

 beans ordinarily should receive a full ration of corn, 

 for otherwise the pigs will obtain an excess of protein 

 in their diet. The advisability of limiting the grain 

 fed when pigs are on forage in general is discussed in 

 Chapter IX. 



Soybeans versus rape. 



The value of soybeans when used as a green forage 

 crop for 45-pound pigs, when compared with rape, is 

 suggested by the results of an experiment conducted 

 at the Ohio Station.^ The pigs were turned in on the 

 forage crops July 15 when the plants were about ten 

 inches high and remained 77 days, or until November 10. 

 The results from these lots are shown in the following 

 table: 



Table LIII. — Soybean Forage vebsus Rape 



> BuU. 242. 



