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割草机土壤压实与苜蓿产量相关性研究
高爱民,吴劲锋,戴飞,张锋伟,韩正晟
Correlation study of soil compaction by mowing machine and alfalfa yield
GAO Ai-min, WU Jing-feng, DAI Fei, ZHANG Feng-wei, HAN Zheng-sheng
草业学报 . 2014, (2): 59 -65 .  DOI: 10.11686/cyxb20140207