黄土高原紫花苜蓿土壤氮素丰缺指标和推荐施氮量初步研究
孙洪仁, 王显国, 卜耀军, 乔楠, 任波
Preliminary study of a sufficiency index of soil N and recommended N fertilizer application rates for alfalfa in the Loess Plateau of China
Hong-ren SUN, Xian-guo WANG, Yao-jun BU, Nan QIAO, Bo REN
草业学报
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2022, (4): 32
-42
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DOI: 10.11686/cyxb2021077
