424 



IRRIGATION PRACTICE 



FIG. 132. V-crowder. 



face. Slight elevations and depressions cover it. The 

 more even the land is, however, the more easily and 

 uniformly may irrigation water be applied. Water 

 applied to uneven land accumulates in the lower places 

 and over-irrigates the plants there growing, while the 

 plants on the higher places receive little or no water. 

 Consequently, the yield of the crop is reduced. Moreover, 



such irrigation re- 

 quires much labor, 

 and is unsightly. As 

 soon as the layout 

 of the farm has been 

 decided upon, steps 

 should be taken to 

 grade or level the 

 land. The work once 



done properly need 



FIG. 133. Building a ditch. not be done again, 



