F ESHRAGHI; S GHASEMIAN
Abstract
Water is one of the most important resources in agriculture. Its scarcity and low irrigation performance in Iran makes it more important. In this study, economic productivity of water use in Golestan province was evaluated for selected irrigated crops including cotton, canola, summer soybean, and rice. ...
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Water is one of the most important resources in agriculture. Its scarcity and low irrigation performance in Iran makes it more important. In this study, economic productivity of water use in Golestan province was evaluated for selected irrigated crops including cotton, canola, summer soybean, and rice. To this end, the gross benefit per unit water use was determined as an index. Furthermore, a new approach in ranking and evaluating the regional productivities was adopted. The results showed that the highest economic productivity in water use of irrigated cotton in Gonbad-e-Kavous was 13496 Toman/m3, irrigated canola in Ag-Ghala with 562 Toman/m3, irrigated summer soybean in Minudasht with 394 Toman/m3, high yield long seed rice in Minudasht with 2108 Toman/m3, high yield rice in Ali-Abad with 988 Toman/m3, and medium yield long seed rice in Kolaleh with 960 Toman/m3. Based on the results, Minudasht, Kalaleh, and Aliabad regions had the highest overall economic productivity in water use, while Gonbad-e-Kavous, Kordkuy and Azadshar regions had the lowest.