我国西南地区黑麦草种植技术效率及科技进步贡献分析—

汪武静1,王明利2*

Analysis of Ryegrass Planting Technical Efficiency and Technological Progress Contribution in Southwest China——Taking Sichuan Province as an Example

WANG Wujing1, WANG Mingli2*

中国农业科技导报 . 2017, (6): 21 -28 . DOI: 10.13304/j.nykjdb.2016.506