بررسي اقتصادي كاربرد آب شور در مزارع گندمكاري استان گلستان‌

Economic investigation of saline water use in wheat farms of Golestan province

This research has conducted in order to investigation of water and soil salinity affecting on wheat yield and income in north regions of Golestan province by using production function procedure . Result showed that quantity ,salinity (Ec) and SAR of irrigation water and soil salinity have significant effects on wheat yield and income. Their marginal production (MP ) are 1.06 ,-37.5, -27 and -217 kg/ha and also value of marginal production (marginal productivity ) are 1802 , -64090 ,-45900 and 368900 rials/ha respectively. Optimum level of irrigation water salinity is 5.2 ds/m that the best yield of wheat is available in this salinity level .Results of this research showed that application of saline water has positive effects in wheat cropping of north regions of Golestan province.