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Filtering by: Subject Tillage -- Oregon Remove constraint Subject: Tillage -- Oregon Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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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:
    cropping systems of eastern Oregon. Data were taken from the Tillage/Fertility or "Balenger" experiment

  • Integration of conservation tilage and cover crops in broccoli production systems of the Pacific Northwest

    Creator:
    O'Brien, Timothy John
    Abstract:
    Field and greenhouse experiments were conducted in 1996 and 1997 to evaluate the effects of integrating conservation tillage and cover cropping on broccoli production as well as agroecological parameters. A field experiment was conducted during 1996-97 at the Oregon State University Horticulture Research farm near Corvallis, OR. The specific objectives...
    Resource Type:
    Masters Thesis
    Full Text:
    integrate cover crops and conservation tillage. Many Oregon vegetable growers have expressed an increased

  • Factors influencing metribuzin use in strip-planted wheat

    Creator:
    Zeghida, Ali
    Abstract:
    Equipment for strip-till planting is under development in wheat-fallow rotations in the Columbia Basin of Oregon. This involves the absence of tillage during the fallow season. At planting time, the strip-till planter creates a narrow band into which the wheat seed is placed. The area between the rows is undisturbed...
    Resource Type:
    Masters Thesis
    Full Text:
    development in wheat- fallow rotations in the Columbia Basin of Oregon. This involves the absence of tillage

  • Soil quality dynamics in an integrated reduced-tillage and cover-cropped vegetable agroecosystem

    Creator:
    Banners, Candace R.
    Abstract:
    Soil response and function were investigated following the adoption of an integrated reduced-tillage and cover-cropped vegetable system in the Willamette Valley of Western Oregon. The experiment was conducted over three cropping seasons (2002-2004) at the Oregon State University Vegetable Research Farm (Corvallis, OR). The design was a randomized complete-block with...
    Resource Type:
    Masters Thesis
    Full Text:
    Integrated Reduced-Tillage and Cover-Cropped Vegetable Agroecosystem Abstract approved: Richard P. Dick

  • Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

    Creator:
    Green, Jessica M.
    Abstract:
    Weed management in sustainable farming systems often requires the integration of several different pest management techniques. Cultural, biological, and chemical pest control efforts can be utilized to contribute to the common goal of reducing weeds in vegetable row crop systems. This research addresses how common disturbances such as tillage and...
    Resource Type:
    Masters Thesis
    Full Text:
    crop systems. This research addresses how common disturbances such as tillage and insecticide use