化肥减量有助于提升粮食绿色生产率吗?  

Does Fertilizer Reduction Contribute to Improving Green Productivity of Grain?

作　　者：康炜 刘辉[1] KANG Wei;LIU Hui

机构地区：[1]湖南农业大学经济学院,湖南长沙410128

出　　处：《商业经济》2025年第4期95-97,188,共4页Business & Economy

基　　金：湖南省自然科学基金项目:数字技术赋能农田水利设施治理的机理与绩效研究(2023JJ30312);湖南省社会科学基金项目:粮食与生态“双安全”背景下高标准农田治理机制及绩效研究(21YBA079)。

摘　　要：化肥减量对实现农业可持续发展具有重要意义。使用2003—2021年全国省级面板数据,借助非期望产出超效率SBM模型计算粮食绿色生产率,通过面板Tobi t模型探讨化肥减量对粮食绿色生产率的影响。结果表明,全国粮食绿色生产率变化趋势呈“U”型,粮食三大功能区的粮食绿色生产率差距明显;化肥减量显著促进粮食绿色生产率提升;异质性分析中,化肥减量对粮食绿色生产率影响具有地区差异。Fertilizer reduction is of great significance for achieving sustainable agricultural development.Using provincial panel data from 2003 to 2021,this study calculates the green productivity of grain by employing the undesirable output super-efficiency SBM model and explores the impact of fertilizer reduction on green productivity through a panel Tobit model.The results show that the trend of green productivity of grain nationwide follows a"U"shape,with significant disparities among the three major functional zones of grain production.Fertilizer reduction significantly promotes the improvement of green productivity of grain.Heterogeneity analysis reveals regional differences in the impact of fertilizer reduction on green productivity of grain.

关 键 词：化肥减量 粮食绿色生产率 非期望产出 面板Tobit模型 

分 类 号：F326.11[经济管理—产业经济]