SUGAR BEETS, POTATOES, ETC. 



307 



season is really as important as the irrigation. The total 

 quantity of water required for tomatoes is seldom in 

 excess of 18 inches. Occasionally, good crops are pro- 

 duced with less water. 



Watermelons, cantaloupe, squash, pumpkin, eggplant 

 and similar crops grow well under irrigated conditions. 

 Of these crops the cantaloupe is especially important. The 

 watermelon needs little water, and practically none after 

 it is half grown. Two or three irrigations in a season seem 

 to be enough. Cantaloupes require a little more water. 



FIG. 83. Irrigated onions in Arizona. 



