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ARS Home » Pacific West Area » Kimberly, Idaho » Northwest Irrigation and Soils Research » Research » Publications at this Location » Publication #69733
Title: APPLICATION UNIFORMITY OF LOW PRESSURE CENTER PIVOT EQUIPMENT

Author
item Kincaid, Dennis

Submitted to: Idaho Winter Commodity School Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 1/1/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary: Center pivot systems irrigate almost one fourth of the total irrigated land in the U.S. The majority of these systems are now using low pressure (10-30 psi) spray heads. With careful design and operation following the recommendations given, these systems can apply water with high uniformity while minimizing runoff and spray drift losses.

Technical Abstract: This paper discusses factors affecting water distribution under center pivots and traveling laterals, and makes recommendations for maximum nozzle spacing, pressure and elevation for several of the most popular types of sprinklers currently being used. For high uniformity with nozzle elevations of 6 feet or less, a minimum 15 psi nozzle pressure is recommended.