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Filtering by: Subject Cucumbers -- Fertilizers -- Oregon Remove constraint Subject: Cucumbers -- Fertilizers -- Oregon Committee Member Sullivan, Dan M. Remove constraint Committee Member: Sullivan, Dan M.

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  • Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

    Creator:
    Vargas, Oscar L.
    Abstract:
    Northern highbush blueberry is a long-lived perennial crop that is well adapted to low soil pH conditions. The plants are often shallow rooted and absorb primarily the ammonium (NH₄) form of nitrogen (N) rather than nitrate-N (NO₃-N). Traditionally, commercial blueberry fields have been irrigated with overhead sprinklers and fertilized using...
    Resource Type:
    Dissertation
    Full Text:
    studies were conducted in western Oregon to compare fertigation to granular fertilizers and to develop

  • Improving nitrogen management with cover crops in organic broccoli production

    Creator:
    Garrett, Amy
    Abstract:
    Legume cover crops can serve as important sources of nitrogen (N) in sustainable agriculture and can be economically beneficial when fertilizer inputs are reduced without a yield reduction. Synchronizing N mineralization from organic materials with the needs of the subsequent crop is a challenge for organic growers. Predicting plant available...
    Resource Type:
    Masters Thesis
    Full Text:
    sustainable agriculture and can be economically beneficial when fertilizer inputs are reduced without a