颁布单位：[University of the Free State] |  颁布时间：2002 |  实施时间：2002 |  学科分类：[["Economic, impact","Irrigation, agriculture","Irrigation, water, salinity","Soil, salinisation","Linear, programming, optimisation","Farm, level, model","SALMOD","Farm, level, management, options","Policy, guidelines","Lower, Vaal, and, Riet, Rivers","Water, salinization, --, South, Africa, --, Costs","Irrigation, farming, --, Economic, aspects, --, South, Africa","Dissertation, (M.Sc.Agric., (Agricultural, Economics))--University, of, the, Free, State,, 2002"]]

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颁布单位：[University of the Free State] |  颁布时间：1998 |  实施时间：1998 |  学科分类：[["Irrigation, farming, --, South, Africa, --, Free, State","Intercropping, --, South, Africa, --, Free, State","Crops, and, water, --, South, Africa, --, Free, State","Thesis, (Ph.D., (Agrometeorology))--University, of, the, Free, State,, 1998"]]

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