| 齐文娥,宋凤仙.荔枝种植户存在最优生产规模吗？ —基于化肥施用技术效率视角[J].中国南方果树,2021,50(4): |
| 荔枝种植户存在最优生产规模吗？ —基于化肥施用技术效率视角 |
| Does litchi farmer have optimal production scale based on the perspective of technical efficiency of fertilizer? |
| 投稿时间：2020-07-28 修订日期：2020-10-13 |
| DOI：10.13938/j.issn.1007-1431.20200514 |
| 中文关键词: 荔枝 化肥施用效率 随机前沿模型 门槛效应模型 |
| 英文关键词:litchi Fertilizer efficiency Stochastic frontier model Threshold effect model |
| 基金项目:现代农业产业技术体系建设专项资金项目国家荔枝龙眼产业技术体系产业经济岗位科学家项目（CARS-32-18） |
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| 中文摘要: |
| 为探讨荔枝种植规模与荔枝种植户化肥施用技术效率之间的关系，采用国家荔枝龙眼产业技术体系在2017-2018年对中国荔枝主产区广东和广西两省荔枝种植户的实地调研数据，构建随机前沿函数模型和门槛效应模型来估算化肥施用技术效率和衡量荔枝种植规模与化肥施用技术效率是否存在拐点，用二元函数模型进一步证实荔枝种植规模与化肥施用技术效率之间的关系。实证结果得出荔枝种植户化肥施用技术效率为35.78%；门槛效应模型存在单门槛值，用二元函数模型证实荔枝种植规模与化肥施用技术效率之间呈倒“U”型。 |
| 英文摘要: |
| For studying the lychee acreage and the relationship between the efficiency of fertilizer technology, we use litchi and longan industry technology system industry economic duty team in 2017-2018 years in a row of litchi main Guangdong and Guangxi provinces fixed observation door panel data of field investigation, using stochastic frontier function model to estimate the fertilizer efficiency, technology measure whether there is a turning point value and the threshold effect model, multivariate function model litchi acreage and fertilizer technical efficiency.The results show that the technical efficiency of fertilizer application in litchi farmers is low, only 35.78%.The optimal production scale exists in the number of mu of litchi planting.The threshold effect model was used to analyze the relationship between litchi planting scale and the technical efficiency of fertilizer application in 2017 and 2018. There was a single threshold value.By using multivariate function, the relationship between litchi planting scale and the technical efficiency of fertilizer application is inverted U. |
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