Evaluation of Water Productivity Indices with Emphasis on Modern and Traditional Irrigation in Crops of Shahriar County

Promoting water productivity in food production is one of the main issues in different countries of the world, especially in low-water countries like Iran. In the present situation, measurement and analysis of productivity indices of scarce water input in agricultural sector in Iran is of special importance due to the quantitative and qualitative limitation of this valuable material. Therefore, the purpose of the present study is to measure and compare the physical and economic productivity of irrigation water use in two traditional and modern irrigation systems for major crops (Wheat, Barley, Rapeseed, Alfalfa and Forage Corn) in Shahriar. In this study, the CPD, BPD and NBPD were used to calculate of agricultural water productivity. According to the results of the study, in both irrigation systems, the priority of crop cultivation to the second rank is based on CPD index Forage Corn and Alfalfa, respectively. Also based on both BPD and NBPD indices in modern irrigation system are Rapeseed and Wheat respectively and in traditional irrigation system Rapeseed and Alfalfa, respectively.