资源 标记: Droughts

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  1. Food Crops and Drought (Tropical Agriculturalist)

    关键资源 1999-01-01 This book looks at the ways in which the productivity of food crops in the semi-arid tropics may be increased, and yields safeguarded, by both genetic and agronomic means. 2 Copies.
    Crops-Drought tole... Droughts Food Crops

  2. Men Against the Desert

    The story of Canada's conquest of the prairie droughtduring the Dust Bowl years of the 1930s.
    Droughts Reclamation of Land Saskatchewan Economic History Praire Provinces