1176 
ENCYCLOPEDIA OF PRACTICAL HORTICULTURE 
Fig. 3. Artesian Well Near Walla Walla, Washington. 
gallons per minute. 
sary for meadow than for cultivated 
Crops. 
Method of purchase. The best plan is 
to practice rotation in the use of water, 
and make the best use of the water while 
it is on the farm. The highest duty is 
obtained by this method rather than by 
having a continuous stream during the 
season. 
Summary. A low duty of water is due 
579 feet deep with flow of 2,224 
62 pounds pressure. 
to excessive appropriation, bad contracts, 
loss by seepage and careless irrigation. 
The duty of water may be increased by 
preventing seepage, draining the land, 
providing for rotation in use, and charg- 
ing for the quantity received. 
Amount and Frequency of Irrigation 
In irrigation practice it is important 
that the irrigator know the amount of 
