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Filtering by: Subject Corn -- Fertilizers -- Oregon Remove constraint Subject: Corn -- Fertilizers -- Oregon Committee Member Dick, Richard Remove constraint Committee Member: Dick, Richard

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  • Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

    Creator:
    Camara, Kelli Marie
    Abstract:
    Winter wheat is commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon. For agronomic, economic, and environmental reasons, it is important to understand the long-term sustainability of such dryland systems. The objective of this study was to evaluate the long-term effects of tillage, nitrogen...
    Resource Type:
    Masters Thesis
    Full Text:
    commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon

  • Assessment of variability and monitoring methods for leaching under cover crop management

    Creator:
    Hess, Mario
    Abstract:
    The contamination of ground water resources represents a serious problem and a prominent threat to the health of our society. This study focuses on the leaching of inorganic anions as a function of agricultural practices under natural field conditions. In order to enhance the understanding of such leaching processes, this...
    Resource Type:
    Masters Thesis
    Full Text:
    documented by solute breakthrough ahead of the main solute peak. Rates of nitrogen fertilizer application