Study of Efficiency and Optimal Inputs Usage for Rice production; Case Study: Rice Producers in Kamfirouz District, Fars Province

Efficiency survey of agricultural products is an important and effective factor for increasing production and yield without extra costs. In this paper, Data Envelopment Analysis method is applied to measure technical, economic, allocative, management and scale efficiencies and optimal amounts of inputs, emphasizing on water, are estimated for rice producers in Kamfirouz district, Fars Province. The data for these analyses are collected from 211 questionnaires in 2010-2011. Results indicated that on average, technical, allocative, economic, management and scale efficiencies are 72, 40, 29, 79 and 91 percents respectively. Maximum of undesirable use of inputs is related to irrigation water with inefficiency of 40 percent. Optimal expenditure of irrigation water is 11420 m3/hectare.