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  • Korreksiefaktore by seleksie van Merinoskape
    颁布单位：[University of the Free State] |  颁布时间：1971 |  实施时间：1971 |  学科分类：[["Merino, sheep","Lambs","Ewes, --, Behavior","Dissertation, (M.Sc.Agric., (Sheep, and, Wool, Science))--University, of, the, Free, State,, 1971"]]
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  • Temperatuurstudie van die Oranjeriviergebied met die oog op gewasverbouing
    颁布单位：[University of the Free State] |  颁布时间：1971 |  实施时间：1971 |  学科分类：[["Plants,, Cultivated","Plants,, Cultivated, --, Free, State","Plants, --, Effect, of, hail, on","Harvest, and, climate","Dissertation, (M.Sc.Agric., (Agricultural, Sciences))--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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