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  1. By: Picha, David Harry,
    Publication info: 1980
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Dissertations, Academic  Horticultural Science  Horticultural Science thesis Ph. D  Potassium content  Potassium fertilizers  Soils  Tomatoes  UF  
  2. By: Sims, J. L. - United States. Agricultural Research Service.
    Publication info: Washington, D.C.?, USDA, ARS, 1989?
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Growth (Plants)  Phosphatic fertilizers  Plant regulators  Potassium fertilizers  Tobacco