摘要
The research explored productive efficiencies of main crops in the decade in Hunan by nonparametric DEA method and the results showed that net output value and net-profit rate of potato and sweet potato were extremely higher than those of rice and maize, and comprehensive efficiencies from high to low were potato, rice, sweet potato and maize. It is recommended that scales of rice, maize, and sweet potato should be reduced to certain extent and the scale of potato pro- duction extended. Besides, direct fee and labor cost should be lowered as much as possible to improve net-profit rate, accelerate crop S＆T development and improve grain productive efficiency.
运用DEA非参数法对湖南省近十年4种主要粮食作物生产效率进行了研究。结果表明,马铃薯、红薯净产值、成本纯收益率均极显著高于水稻、玉米,综合效率排序为马铃薯>水稻>红薯>玉米。建议湖南省在今后一段时期适当压缩水稻、玉米、红薯生产规模,适当扩大马铃薯生产规模,重点减少直接费用和用工作价,提高成本纯收益率,加快粮食科技进步,改善粮食生产效率。
基金
Supported by Hunan Key Financial Project([2014]74)~~
