276 



12OOO 

 CO 9OOO 



$0000 



IRRIGATION PRACTICE 



. 





GO 



Jllfa.Ua, 



FIG. 70. Yield vs. water (alfalfa). 



M\ 



the irrigation water of which deposits much silt over 

 the soil. 



A small quantity of water will give a fair yield of alfalfa 

 hay; good returns are obtained with 12 to 18 or even 24 

 inches of water. In general, on alfalfa fields, about one 

 and one-half times as much water may be safely used as is 

 given to corn and the small grains. On deep soils, alfalfa 



