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Filtering by: Creator Mangum, Doris Louella Remove constraint Creator: Mangum, Doris Louella Degree Field Soils Remove constraint Degree Field: Soils

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  • Influence of anhydrous ammonia on the solubility of soil organic matter

    Creator:
    Mangum, Doris Louella
    Abstract:
    Four surface and three subsurface horizons of agriculturally important Oregon soils were exposed to excessive volumes of anhydrous ammonia and reequilibrated with the atmosphere for several time periods prior to extraction with water. The carbon solubilized was determined by a modified wet combustion technique. Nitrogen in the soils, extracts, and...
    Resource Type:
    Masters Thesis
    Full Text:
    organic matter AN ABSTRACT OF THE THESIS OF DORIS LOUELLA MANGUM for the M. S. in SOIL SCIENCE (Name