颁布单位：[University of the Free State] |  颁布时间：2014 |  实施时间：2014 |  学科分类：[["Dissertation, (M.Sc.Agric., (Soil,, Crop, and, Climate, Sciences))--University, of, the, Free, State,, 2014","Wheat, --, South, Africa, --, Eastern, Free, State","Conservation, tillage","Crop, rotation, --, South, Africa, --, Eastern, Cape","Agricultural, conservation, --, South, Africa, --, Eastern, Free, State","Production, risk","Production, cost","Dryland, wheat, production"]]

预览  |  原文链接    [浏览：0 下载：0]