Uniformity in pressurized irrigation systems depends on design, installation

Abstract

Of 258 irrigation systems evaluated by mobile field laboratories in five Southern California resource conservation districts, average uniformity in distribution of water was relatively low. Generally, farms larger than 100 acres had systems with higher uniformity in distribution. Age of a system did not necessarily account for poor distribution. What did account for it was variation in pressures due to inadequate system design or to installation of incorrect hardware.