AN ANALYSIS OF TECHNICAL EFFICIENCY FOR TURMERIC PRODUCTION OF FARMERS IN SURATTHANI PROVINCE
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Abstract
This research aimed to: 1) Analyze total costs and production functions; 2) Examine the technical efficiency of turmeric production; and 3) Propose strategies for enhancing technical efficiency in turmeric production among farmers in Surat Thani Province. A mixed-methods research design incorporating both quantitative and qualitative approaches was employed using purposive sampling. The quantitative component comprised 85 commercial turmeric farmers from three districts: Kiri Rat Nikhom, Ban Ta Khun, and Phnom. Data collection was conducted through structured questionnaires. The qualitative component involved seven participants, including community representatives, government officials, and enterprise group representatives. Qualitative data were gathered through in-depth interviews and focus group discussions. The research findings revealed that: 1) The average total cost of turmeric was 15,914.52 baht per rai, with non-cash costs exceeding cash costs, particularly for seed and labor expenses. The Cobb-Douglas production function analysis indicated that factors significantly affecting yield included cultivation area size, seed quantity, and farmer group formation. Returns to scale showed a decreasing trend. 2) Technical efficiency measurement using the stochastic frontier production model across three areas-Khao Wong Sub-district in Ban Ta Khun District, Yan Yao Sub-district in Kiri Rat Nikhom District, and Ton Yuan Sub-district in Phnom District-demonstrated technical efficiency levels of 0.9760187, 0.9758887, and 0.9759614, respectively. and 3) Strategies for enhancing technical efficiency in turmeric production include promoting farmer group formation through enterprises or cooperatives and developing systematic seed management systems. Additionally, establishing standardized marketing channels and product processing should be prioritized. Furthermore, supporting knowledge development in production and management practices, along with implementing price guarantee mechanisms, will improve the overall efficiency of turmeric production in Surat Thani Province. These measures aim to improve the overall efficiency of turmeric production in Surat Thani Province.
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