Irrigation in the Pacific Northwest

Required System Capacity

This form calculates the system capacity (flow rate) required to meet the irrigation water needs of a field. Go here for calculations that are specific to your crop, area, and soil. Learn more about the units used on this page.

Irrigation Interval:
Operation Time Per Day:
Irrigation Efficiency:
Required System Capacity:


WSU Prosser - IAREC, 24106 N Bunn Rd, Prosser WA 99350-8694, 509-786-2226,