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  1. Stress indices for spring wheat on the Canadian prairies /
    By: Bootsma, A. - De Jong, Reinder. - Dumanski, J. - Canada. - Canada.
    Publication info: Ottawa :Research Branch, Agriculture Canada,1992.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
    Subjects: Agriculture  Maps  Prairie Provinces  Soils  Water stress  Wheat  
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