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Filtering by: Subject Gypsum Remove constraint Subject: Gypsum Degree Field Soil Science Remove constraint Degree Field: Soil Science

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  • The effects of gypsum on infiltration and surface properties of some western Oregon soils

    Creator:
    Pronold, Michael Joseph
    Abstract:
    The effects of broadcast gypsum on infiltration rates, crusting, aggregate stability, and runoff and sediment yields were analyzed during the winter months on three West Oregon soils. The results were used to evaluate its utility as a management tool to help control erosion. An application rate of two metric tons...
    Resource Type:
    Masters Thesis
    Full Text:
    The effects of gypsum on infiltration and surface

  • Cultural controls for suppressing Phytophthora cinnamomi root rot of blueberry

    Creator:
    Yeo, John R.
    Abstract:
    Phytophthora cinnamomi is a soilborne pathogen that causes root rot disease of highbush blueberry (Vaccinium corymbosum L.). When new installations of susceptible blueberry cultivars are infected with P. cinnamomi, plants often fail to grow significant new tissue, greatly reducing yields over the life of the planting. Chemical fungicides are available...
    Resource Type:
    Dissertation
    Full Text:
    (gypsum and a variety of organic materials) via a series of trials in the greenhouse. Based on the