122 



CROPS 



ticularly alfalfa (Fig. 30), are grown for this purpose. What- 

 ever the crop, the principle is the same, namely, to cut the 

 crop when it is in the best condition for making a valuable 

 hay, and to dry it or cure it. 



Fig. 29. — Root vegetable crop: Potatoes. 



104. Chemical Changes in Making Hay. — As noted in 

 Table I, the fodder crops range in moisture content from 60 

 to 80 per cent., whereas hay runs from 8 to 15 per cent., 

 except in the case of cured corn fodder which contains 



