Effect of length of main and lateral tubes on the performance of semi permanent Sprinkler System

Abstract

The study was carried to evaluate performance of semi – permanent sprinkler irrigation system. The experiment included main line with three length (90, 180 and 270m) and sub line in three length (60, 120, and 180m) and there effect on uniformity coefficient (UC%) distribution uniformity (DU%) efficiency of application (EA%) and over all efficiency of the system (OEA) randomized complete block design in split – plot with three replications was used.Results can be summarized as follow. Main line in length (90m) recorded best UC, DU, EA, and OEA% which gave 75.5, 66.7, 85.7 and 64.7%, respectively. Also the sub length (60m) gave higher UC, DU, EA and OEA% which recorded 65.5, 86.7, 66.5 and 75.56% respectively. Wheres the interaction between main length (90m) and sub length (60m) showed highest results for UC, DU, EA and OEA% which gave 86.6,