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  • The compaction susceptibility of soils in the Free State
    颁布单位：[University of the Free State] |  颁布时间：1998 |  实施时间：1998 |  学科分类：[["Soil, compaction, --, South, Africa, --, Free, State","Dissertation, (M.Sc.Agric., (Soil, Science))--University, of, the, Free, State,, 1998"]]
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  • Studies oor die toeganlike sinkstatus van sekere Vaalhartsgronde
    颁布单位：[University of the Free State] |  颁布时间：1973 |  实施时间：1973 |  学科分类：[["Irrigation","Soil","Climate, changes","Dissertation, (M.Sc.Agric., (Soil, Science))--University, of, the, Free, State,, 1973"]]
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  • Studies oor die toeganklike fosforstatus van sekere Vaalhartsgronde
    颁布单位：[University of the Free State] |  颁布时间：1971 |  实施时间：1971 |  学科分类：[["Phosphatic, fertilizers","Soils, --, South, Africa, --, Northern, Cape, --, Vaalharts","Soils, --, Phosphorus, content","Dissertation, (M.Sc.Agric., (Soil, Science))--University, of, the, Free, State,, 1971"]]
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  • The nutrient status of two soil forms of the Orange River development project
    颁布单位：[University of the Free State] |  颁布时间：1971 |  实施时间：1971 |  学科分类：[["Soils, --, South, Africa","Soils, --, Orange, River","Soils, and, nutrition, --, South, Africa","Soils, and, nutrition, --, Orange, River","Dissertation, (M.Sc.Agric., (Soil, Science))--University, of, the, Free, State,, 1971"]]
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