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  1. By: Harter, L. L. (Leonard Lee) - United States. Bureau of Plant Industry.
    Publication info: Washington,Gov't Print. Off.,1908.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Plant physiology  Salts, Soluble  
  2. By: Ayres, Arthur Hugo,
    Publication info: Berkeley,University of California Press,[1917]
    Holding Institution: University of California, Davis Libraries (archive.org)
    Subjects: Effect of salts on  Nutrition  Plants  Salts, Soluble  Soils