PERFORMANCE EVALUATION OF SPRINKLER IRRIGATION SYSTEMS USING FIELD EXPERIMENT AND REMOTELY SENSED (WaPOR) DATA: THE CASE OF ARJO DIDESSA IRRIGATION PROJECT, ETHIOPA

Abstract

The performance evaluation of the Arjo Diddessa sprinkler irrigation system is required for determining whether the overall system address the objectives stated at the time of the systems established in which the aim this study were to evaluate the performance of the infield sprinkler irrigation system using the Water Productivity through Open access of remotely sensed derived dataset technique and field experiment in current condition. With these ground catch cans were used to collect water depth used to determine the indicators like Uniformity, adequacy, system uniformity, application efficiency in the field experiment, and equity, uniformity and adequacy for Quantum Geographic Information System with WA plugin was combined with Water Productivity through Open access of remotely sensed derived data for remote sensing. Based on field experiment, the average actual values for distribution uniformity, coefficient uniformity, system uniformity coefficient, system distribution uniformity,, application efficiency and adequacy were 58%, 69%, 52%, 23%, 15%, and 37%, respectively, at.3,4,4.5, and 5 bars at the sprinkler spacing of 18 m x 18 m. Additionally, Equity, uniformity, and adequacy were 34%, 66% and 58%, respectively, according to the value obtain from Water Productivity through Open access of remotely sensed derived data in a chosen location. Overall, the results of this study showed that the problems of design and implementation, the poor management and maintenance were the reasons for the low performance of sprinkler systems as per the values obtain from both approaches which fell outside of an acceptable range resulting in reduced sugar cane yield output at the Arjo Diddessa sugar factory due to the system's limited ability to function at the needed level