Estimation kinds of efficiency and return to scale of sunflower's agriculturists of Khoy Township

Khoy is the greatest producer of sunflower in Iran. The main aim of this research is position’s analyzing of kinds of efficiency (technical, allocation’s, economic and scale) for sunflower’s users in this city. This research is based on Data Envelopment Analysis (DEA), Statistics and data are filling out the 140 questionnaires in 2007_2008. Results show that average of technical, allocations, economical and scale Efficiencies of sunflower productions in area are, in order, 66, 54/7, 35/9 and 75/9. Inefficiency, at first, is related to allocation’s inefficiency, and then by reason of different qualities of inputs like water and field. Results show that all producing inputs are less than optimum consumed amount and the most discrepancy of consumption is 886/7 in water savings and 385/76 in manure. According to the result, it is possible to increase agricultural production and decrease cost bye using efficiency increasing programs without important changes in technology level and resource usage.