Performance Evaluation of Sprinkler Irrigation System and Water Use Efficiency of Pak Choy(Brassica chinensis var juliennius) at Netted House ,UMK AgroTechno Park

Sprinkler irrigation system is a method of applying irrigation water which is similar to natural rainfall. This study emphasizes to evaluate the coefficient of uniformity of the water discharge and measurement of pressure during Pak Choy cultivation from sowing to its maturity stage. Performances irrigation system is evaluated in three series experiment for this sprinkler system. In this netted house structure, there are nine benches. Each bench equipped with four fixed head sprinkler. This study revealed that uniformity distribution found in this study are in the range between 81.66% and 83.26% . The average coefficient of uniformity distribution of all benches is 75.61%. This study also revealed that Water Use Efficiency (WUE) for Pak Choy cultivation is 3.460 kg/. This values implies normal growth performances, where the Pak Choy cultivation received enough water supply which can produce maximum yield production. Controlling of valve on this system does not significantly different in term of pressure. Controlling of valve on opening and closing on this system also does not significantly different in term of discharge. In conclusion, evaluation performances for this sprinkler irrigation can help the farmer in managing their farm as sprinkler irrigation is considerable efficiency and distribution water more evenly across crops helping to avoid wastage