摘要
苜蓿(Medicago sativa)是牧草之王,其综合营养价值显著高于玉米(Zea mays)和小麦(Triticum aestivum)等粮食作物,对我国奶业的发展具有重要的意义,目前市场上存在着巨大的供需缺口。本研究从苜蓿产业的投入产出分析入手,用随机型参数方法测算了2011-2013年8个苜蓿生产优势省(区)的技术效率,并进一步测算了科技进步率和科技进步贡献份额。结果表明,技术效率较高且逐年增长,2013年技术效率为89.3%;苜蓿产业的科技进步贡献份额为49.4%,说明我国苜蓿产业发展方式介于"粗放型"和"集约型"。针对研究结论,提出了提高种子费和机械费投入,加强田间管理,推进苜蓿产业规模化发展的政策建议。
Alfalfa is the king of the forage whose comprehensive nutritional value is significantly higher than that of food crops like corn and wheat. At present there is a huge gap between supplies and demands of alfalfa although it has vital significance for the development of dairy industry in our country. The present paper analysed the inputs and outputs of alfalfa industry and estimated the technical efficiency of alfalfa production in eight major producing provinces from 2011 to 2013 using the parametric estimation method,then estimated the rate of technical progress and its contribution rate. The results showed that the technical efficiency was high and increased year by year with the value of 89. 3% in 2013 and the contribution rate of technical progress was 49. 4% which indicated that the development of China's alfalfa industry is in a state between'extensive'and'intensive'growth. In conclusion,the suggestions about raising the seed cost,labor and machinery and improving the scale of alfalfa production were put forward.
出处
《草业科学》
CAS
CSCD
北大核心
2014年第10期1990-1997,共8页
Pratacultural Science
基金
现代农业产业技术体系建设专项资金(CARS-35-22)
关键词
苜蓿
随机型参数方法
技术效率
科技进步贡献份额
alfalfa
parametric estimation method
technical efficiency
contribution rate of technical progress
