颁布单位：[University of the Free State] |  颁布时间：2006 |  实施时间：2006 |  学科分类：[["Thesis, (Ph.D., (Soil,, Crop, and, Climate, Sciences))--University, of, the, Free, State,, 2006","Corn, --, Fertilizers, --, Ethiopia","Tillage, --, Ethopia","Corn, --, Residues, --, Ethopia","Conventional, tillage","Minimum, tillage","Labeled, urea","Maize, genotype","Nitrogen, use, efficiency"]]

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颁布单位：[University of the Free State] |  颁布时间：2006 |  实施时间：2006 |  学科分类：[["Thesis, (Ph.D., (Environmental, Management))--University, of, the, Free, State,, 2006","Land, use, --, South, Africa","Environmental, management, --, South, Africa","Land, use, --, Environmental, aspects, --, South, Africa","Strategic, environmental, assessment","Integrated, environmental, management","Biodiversity, conservation","Landscape, ecology","Transformation","Land, use, impacts","Analytic, hierarchy, process","Land, use, evaluation, model"]]

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