398 FUNDAMENTALS OF AGRICULTURE. 



there are sometimes losses in the field curing of crops. 

 On the whole the preserving of forage crops in a silo 

 is more profitable. 



Root Crops. Turnips, carrots, rutabagas, mangel- 

 wurzels (a kind of beet), and beets are the principal 

 root crops used for feeding. Potatoes are sometimes 

 fed, but they are generally grown for human consump- 

 tion. For making milk or producing beef the feed- 

 ing of root crops is satisfactory. On account of the 



FILLING A WOODEN SILO. 



tonic effect, roots give results far above what the 

 chemical value would indicate. 



Grains and Seeds. Some of our principal grains and 

 seeds used for feeding farm animals are corn, cotton- 

 seed, rice, oats, barley, flaxseed, rye, wheat, beans and 

 peas. Most of our grains and seeds must be thor- 

 oughly dried before they are stored away. If they are 

 not completely dried they are liable to ferment and de- 

 compose. Such deterioration spoils them for feeding 

 purposes. 



Commercial Feeds. These can be defined as those 



