颁布单位：[University of the Free State] |  颁布时间：2011 |  实施时间：2011 |  学科分类：[["Small-scale, farmers","Recommended, management, practices","Climate, variability","Economic, analysis","Crop, growth, model","Corn, --, Breeding, --, South, Africa, --, Free, State","Corn, --, Climate, factors, --, South, Africa, --, Free, State","Crops, and, climate","Dissertation, (M.Sc.Agric., (Soil,, Crop, and, Climate, Sciences))--University, of, the, Free, State,, 2011"]]

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