การวิเคราะห์ประสิทธิภาพการผลิตข้าวด้วยข้อมูลผสมระหว่างข้อมูลภาคตัดขวาง และข้อมูลอนุกรมเวลา [An Analysis of Rice Production Efficiency Using Pooled Data]
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Abstract
The construction of the Kwae Noy Bumrungdan Dam started in the year 2003. The main objective was to supply water to agricultural production both in the rainy and dry seasons to 155,1661 rais of the Kwae Noy irrigated area. Socio-economic monitoring and evaluation at household level were been done from 2005 to 2016 fiscal years to acquire being information for correcting environmental effects that might have occurred during the construction . The pooled data of rice plantation in the crop year 2005/2006 and 2014/2015 of household samples in the dam beneficiary areas were used in estimating the production function of both rainy and dry seasons. The efficiency of each variable input used was analyzed. Also, the change in efficiency of input used was evaluated comparing between 2 crops years by using the quantity of chemical fertilizers 46-0-0 and 16-20-0 which were the main fertilizers used as the means of measurement. It was found that the elasticity of rice yield with respect to every input used was inelastic. The input used efficiency estimating from 46-0-0 and 16-20-0 fertilizers used of both wet and dry season rice plantations in 2005 and 2014 were decreased. Therefore, farmer preparation in using inputs optimally for the utilization of water from Kwae Noy Bumringdan Dam would bring about higher efficiency.
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References
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