The main purpose of this study was to measure technical, allocative and economic efficiency producers of colza in the Mazandaran province. For this purpose, 110 producers of colza in 2014 in the major areas of cultivation of colza in the province were selected with random sampling cluster classification technique. Cities were include Neka, Behshar, Sari and Joybar. The necessary information through interviews with farmers is obtained. For estimating the production function, Transcendental function is used. Among various estimates of the stochastic frontier approach has had the best results. The results showed, there is a significant relationship between dependent variable (yield in unit area) and the number of labor, hours of plowing, seed amount, the amount of urea, phosphate, potash fertilizer and herbicide and farm size also results showed that the mean technical, allocative and economic efficiency colza producers have respectively, 75%, 56% and 42%. Survey the effect of various economic and social factors on efficiency shows that, number of labor, hours of plowing, the amount of seed, urea, phosphate and potash fertilizers, herbicides, farm size, planting and harvest date, and employee to non-agricultural work have direct efficiency of colza growers.

JEL Classification: D61, D24

Keywords:
Technical Efficiency, Allocated Efficiency, Economic Efficiency, Colza, Production Function, Mazandaran