颁布单位：[University of the Free State] |  颁布时间：2009 |  实施时间：2009 |  学科分类：[["Water, harvesting, --, South, Africa, --, Glen","Conservation, tillage","Dissertation, (M.Sc., Agric., (Soil,, Crop, and, Climate, Sciences))--University, of, the, Free, State,, 2009","Irrigation, --, South, Africa, --, Glen"]]

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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：[["Soil, permeability, --, South, Africa, --, Bloemfontein","Soil, moisture, --, South, Africa, --, Bloemfontein","Dissertation, (M.Sc.Agric., (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：[["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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