颁布单位：[University of the Free State] |  颁布时间：2009 |  实施时间：2009 |  学科分类：[["Fulvic, acid","Humic, acid","Organic, carbon","Soil, organic, matter","Organic, nitrogen","Humus","Land, use, --, Envrionmental, aspects","Soil, fertility, --, South, Africa, --, Free, State","Dissertation, (M.Sc., (Soil,, Crop, and, Climate, Sciences))--University, of, the, Free, State,, 2009"]]

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颁布单位：[University of the Free State] |  颁布时间：2009 |  实施时间：2009 |  学科分类：[["Land, use, --, Lesotho, --, Planning","Ethnoscience, --, Lesotho","Agricultural, development, projects, --, Lesotho","Dissertation, (M.A., (Africa, Studies))--University, of, the, Free, State,, 2009"]]

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