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Effects of Flaveria bidentis Planting Density on Maize Growth Under Different Nitrogen Gradients
田佳源,张思宇,皇甫超河,田秀平,杨殿林,王慧
Chinese Agricultural Science Bulletin . 2018, (20): 26 -33 .  DOI: 10.11924/j.issn.1000-6850.casb17100073