IRRIGATION OF FIELD CROPS. 



209 



berries and a grain yield of more specific gravity. 

 Overwatering at this time may cause i^t, and great 

 discretion must be used as to the water at this period. 



FIG. 60— IRRIGATING A GRAIN FIELD. 



If the ground is moist it is not necessary to give the 

 heading irrigation. Fig. 60 shows the process of 

 flooding a wheat crop from a field furrow, the irriga- 

 tor throwing in a diverting check of earth to flood the 

 field laterally. 



