328 



IRRIGATION PRACTICE 



196. Plants for ornament and comfort. Shade trees, 

 shrubs, flowers as windbreaks, along the streets or in 

 the gardens are all grown easily under irrigation. They 

 require, generally, the same treatment as other crops. 

 Such crops should be watered regularly. During the 



FIG. 90. An irrigated date palm orchard in Arizona. 



season, more water can be given them than crops grown 

 for commercial purposes. Forest trees are seldom grown 

 except for ornamental purposes. In a few sections of the 

 country, where the settlements are far from the railroad 

 and coal mines, trees, notably the poplars, are grown to 

 furnish fuel for the farmers. Trees for this purpose are 

 grown along the ditch banks, and receive only such water 

 as they absorb directly from the water seeping through 



