Comparing of Economic Efficiency of Different Irrigation Systems of Alfa- Alfa Farms in Qorveh-Dehgolan Plain

This study aimed to compare the economic efficiency of fixed head classic, center pivot, linear, and tape-drip irrigation systems using DEA with base on two types of constant and variable return to scale in Qorveh- Dehgolan plain for the agricultural year 2017-18 in Kurdistan province. The number of 171 farm selected as sample size through simple random sampling method. The necessary data was collected through interview and filling questionnaire. The results showed that, the average economic efficiency in fixed head classic, center pivot and linear in case of constant and variable return to scale of Alfalfa crop were 0.52, 0.58, 0.71, and 0.60, 0.73, 0.90 respectively. Therefore, it showed that, the economic efficiency of linear irrigation system was higher than center pivot and accordingly center pivot was more than fixed head classic irrigation system. Address to the results, it may recommend the proper study for the preparation of irrigation system change from current situation to linear one.