种植密度对紫花苜蓿不同生育时期叶片C、N、P生态化学计量的影响
刘文兰, 师尚礼, 田福平, 罗永忠
Effects of Planting Density on Leaf C, N, P Ecological Stoichiometry in Different Growth Stages of Alfalfa
LIU Wen-lan, SHI Shang-li, TIAN Fu-ping, LUO Yong-zhong
草地学报
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2018, (1): 114
-124
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DOI: 10.11733/j.issn.1007-0435.2018.01.014