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  • Using Algal Biomass as a Fertilizer

    Creator:
    Cappellazzi, Shannon B.
    Abstract:
    Algae can be used in a variety of wastewater systems to capture nutrients while fixing carbon dioxide from the atmosphere. I conducted field trials at three locations in Oregon with both corn and potato crops to assess the agronomic value and environmental impact of using the resulting algal biomass as...
    Resource Type:
    Dissertation
    Full Text:
    uptake of other cations (Kayser and Isselstein, 2005; Moore, 2015b) and hypocalcemia, or milk fever, in

  • Impacts of Reduced Tillage and Disturbance on Soil Health and Microbial Community Dynamics in Grass Seed Cropping Systems

    Creator:
    Zamora, Cesar G.
    Abstract:
    In Oregon perennial and annual grass seed cropping systems conservation management practices and their impacts on soil health and soil microbial community is not well understood. There is strong motivation to employ conservation tillage and other conservation practices to curb atmospheric carbon levels and improve soil health. However, the few...
    Resource Type:
    Masters Thesis
    Full Text:
    also like to express my appreciation to Amber Moore for her encouragement and support as I completed

  • Soil Solarization in Pacific Northwest Tree Seedling Nurseries: Effects on Soilborne Plant Pathogens, Soil Nutrients and the Soil Microbiome

    Creator:
    Weidman, Clara S.
    Abstract:
    Nursery and greenhouse products are economically important agricultural commodities for Oregon and Washington. Nursery crops including tree seedlings can be damaged or killed by soilborne plant pathogens, which can be challenging to manage because of their persistence in soil and limited options for control. Soil solarization is a pre-planting soil...
    Resource Type:
    Masters Thesis
    Full Text:
    :_____________________________________________________ Jennifer L. Parke Nursery and greenhouse products are economically important

  • Remediation of atrazine in irrigation runoff by a constructed wetland

    Creator:
    Runes, Heather B.
    Abstract:
    Due to its frequent use in agriculture and its frequent detection in surface water, atrazine was chosen as a model compound to study the treatment capability of a surface flow wetland used to remediate irrigation runoff at a container nursery near Portland, Oregon. Further evaluation of treatment of atrazine was...
    Resource Type:
    Dissertation
    Full Text:
    committee members Dr. Peter Bottomley, Dr. Jennifer Field, Dr. James Moore, and Dr. Peter Nelson who were