ประสิทธิภาพทางเทคนิคของการผลิตมันสำปะหลังของเกษตรกรในจังหวัดพะเยา

Abstract

The strategic goal of Thailand is to increase the production of cassava to 5 tons per rai. Phayao is one of the provinces which has signed the Memorandum of understanding (MOU) with Department of Agricultural Extension as to improve the low rate of cassava production. This study has the objectives to perform the cost and return analysis of cassava production and to discern the technical efficiency of cassava cultivators in Phayao Province. The needed information was collected by interview with 140 farmers who cultivated cassava in the three major growing districts of Phayao Province. Stochastic Production Frontier technique was employed for the study. The findings revealed that the typical or average farm had five rais of cassava planted area, yielded 2,975 kg/rai output, spent 4,037.64 baht per rai (1.28 baht per kilogram output) for total production cost, and got a profit of 1,278.71 baht/rai (2.14 baht/kg). From the analysis of technical efficiency in cassava production, it was found that the appropriate model for the estimation was in the form of Cobb Douglas function. Based on the production function analysis, the yield enhancing inputs were labor, land preparing machine, and chemical/organic fertilizer. The average technical efficiency of cassava cultivators under study was estimated at 0.81 indicating that most of them had comparable as well as high levels of technical efficiency. In Phayao Province’s soil conditions, the cultivation of Rayong 9 and Rayong 5 varieties would result in higher cassava yields in comparison with Kasetsart 50 variety. Furthermore, the factor of age also explained the technical efficiency level as young farmers appeared to perform better than the old ones. According to the study has shown that agriculturists can apply this result to plan for increasing the efficiency of productive management. Moreover, farmers can use the results of the study as the basic data in the management of the manufacturing process in order to increase the quality of cassava. For involved agencies or organizations can use this result and the guideline or the way to adjust work plans.