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Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis
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[Influence of nitrogen and phosphorus addition on the aboveground biomass in Inner Mongo- lia temperate steppe,

Li-yuan He, Zhong-min Hu, Qun Guo

    Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology
    |December 22, 2015
    PubMed

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