Yield Gap of Alfalfa, Ryegrass and Oat Grass and Their Influence Factors in China
WEI ZhiBiao, BAI ZhaoHai, MA Lin, ZHANG FuSuo
Scientia Agricultura Sinica . 2018, (3): 507 -522 .  DOI: 10.3864/j.issn.0578-1752.2018.03.010

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