| 【Objective】The study was carried out to improve the technical efficiency of chemical fertilizer application in litchi production, reduce the production cost and improve the incomes of litchi growers and the development of litchi industry.【Method】The industry economic station team of litchi and longan industry technology system was arranged to conduct field survey on litchi growers one-on-one in Guangdong, Guangxi and Hainan Provinces from August to September 2016, construct stochastic frontier production function model to estimate the chemical fertilization technical efficiency in litchi production, and use multiple regression function model to analyze the influencing factors of chemical fertilization technical efficiency.【Result】The average technical efficiency of chemical fertilizer application for litchi growers was 0.419 in the survey areas. Compared with the optimal 100%, the chemical fertilizer utilization rate in litchi production was low. The highest technical efficiency of chemical fertilizer application for litchi growers was 0.551 in Haikou Comprehensive Test Station of Hainan Province, and the lowest was 0.332 in Yulin Comprehensive Test Station of Guangxi
Province. The highest litchi chemical fertilization technology efficiency demonstration county was Changjiang County in Hainan（0.690）and the lowest demonstration county was Xinyi in Guangdong（0.104）. Household per capita income had a significant positive effect on litchi chemical fertilization technical efficiency, while average fixed assets, fertilizer amount（net volume）, household labor force ratio and cultivated area had a significant negative effect on litchi chemical fertilization technical efficiency.【Conclusion】It is suggested to formulate a reasonable scheme for guiding litchi growers to correctly understand the technical efficiency of chemical fertilizer application, and practically promote technical training to improve the technical efficiency of chemical fertilizer application. |
