Index Catalog // ScholarsArchive@OSU

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Creator:: McQueen, John Paul Gainer
Abstract:: As part of a participatory research project, where farmers and Oregon State University researchers collaborated, aspects of potato (Solanum tuberosum L.) growing systems were studied. It was determined through conversations with the farmers that quantification of certain growth parameters of potato was lacking, including dry matter accumulation, crop nitrogen (N)...
Resource Type:: Masters Thesis
Full Text:: , D.M., J.M. Hart, and N.W. Christensen. 1999a. Nitrogen uptake and utilization by pacific northwest

Nitrogen uptake and utilization by Pacific Northwest crops

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Sullivan, Dan M. (Dan Matthew), 1954-, Hart, John M. (John Mervyn), 1947-, Christensen, Neil Walter, 1944-, and Pacific Northwest Cooperative Extension
Abstract:: This publication provides information on the timing and pattern of biomass accumulation and nitrogen (N) uptake for a variety of Pacific Northwest crops. You can use this information to schedule N fertilizer applications for maximum efficiency. To achieve near-maximum crop yields, an adequate supply of available N must be present...
Resource Type:: Technical Report
Full Text:: Nitrogen Uptake and Utilization by Pacific Northwest Crops n PNW

Changes in grain quality and grain protein composition of winter wheat cultivars under different levels of soil nitrogen and water stress

Creator:: Saint Pierre, Carolina
Abstract:: Hard white winter (HVVW) wheat cultivars must have superior protein quality and consistent processing quality to be successful in the Asian market. New cultivars and management strategies are needed to produce HVVW grain for both bread and noodle applications from diverse environments in the US Pacific Northwest (PNW). This study...
Resource Type:: Dissertation
Full Text:: Pacific Northwest (PNW), characterized by late season drought stress, could have an advantage in hard

Irrigated and dryland canola [2007]

Creator:: Wysocki, Donald John, 1952-, Corp, Mary K., Horneck, D.A., Lutcher, L. K., and Oregon State University. Extension Service
Abstract:: Recommendations in this nutrient management guide apply to spring or winter canola (Brassica napus or Brassica rapa) grown under irrigated or dryland management in rotation with a variety of crops. Recommendations for nitrogen, phosphorus, sulfur, potassium, zinc, boron, and lime are covered in this guide.
Resource Type:: Technical Report
Full Text:: recommendations. Zinc (Zn) Zinc fertilization of canola has not been researched in the Pacific Northwest

Nitrogen mineralization from organic amendments during the second year following application

Creator:: Kusonwiriyawong, Charirat
Abstract:: Estimates of nitrogen (N) available from long-term application of organic amendments are required to balance N inputs with crop N requirements. Two studies were conducted to (1) determine N mineralized from organic amendments (manures and composts) during year 2 after application, and (2) compare plant-available N (PAN) determined via in...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Soil Science presented on March 23. 2005. Title: Nitrogen Mineralization

Modeling nitrogen fixation in dead wood

Creator:: Hicks, William Thomas
Abstract:: A mechanistic simulation model of nitrogen fixation in dead wood was developed to help synthesize knowledge, develop hypotheses, and estimate rates of nitrogen fixation in the Pacific Northwest. In this model nitrogen fixation is directly controlled by log substrate, temperature, moisture, and oxygen content. Respiration and diffusion of oxygen indirectly...
Resource Type:: Dissertation

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Creator:: Swanston, Christopher W.
Abstract:: Application of N fertilizer is a common forest management practice in the Pacific Northwest, yet the long-term influence of fertilization on forest soil properties is not well known. Although elevated N often increases mineralization of C and N from labile organic matter, negative effects have been documented in recalcitrant organic...
Resource Type:: Dissertation

Nutrient management for onions in the Pacific Northwest [2001]

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Sullivan, Dan M. (Dan Matthew), 1954-, Brown, B. D., Shock, Clinton C., Horneck, Donald Arthur, Stevens, R. G., Pelter, G. Q., and Feibert, Erik Bruno Goncalves
Abstract:: This nutrient management guide is designed to assist onion growers and crop advisors in producing a high-quality crop while protecting the environment from excess nutrients. Nutrient management strategies recommended here are based on data accumulated over many growing seasons with many different onion varieties in Idaho, Washington, and Oregon. This...
Resource Type:: Technical Report
Full Text:: Nutrient Management for Onions in the Pacific Northwest • 13 Estimating the N fertilizer application

Growing hazelnuts in the Pacific Northwest : orchard nutrition

Creator:: Olsen, Jeff L. and Oregon State University. Extension Service
Abstract:: This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.
Resource Type:: Technical Report
Full Text:: Growing Hazelnuts in the Pacific Northwest: Orchard

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

Creator:: McGinnis, Megan L.
Abstract:: Forests are one of the largest repositories of terrestrial C. Understanding factors that drive organic matter transformations and nutrient efflux from these systems is therefore highly important. Temperate forests are of particular significance due to the large fraction of C that is stored below ground in the soil. Characterizing nutrient...
Resource Type:: Masters Thesis
Full Text:: -growth Douglas- fir Forests of the Pacific Northwest Abstract Approved: David D. Myrold

ScholarsArchive@OSU

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Nitrogen uptake and utilization by Pacific Northwest crops

Changes in grain quality and grain protein composition of winter wheat cultivars under different levels of soil nitrogen and water stress

Irrigated and dryland canola [2007]

Nitrogen mineralization from organic amendments during the second year following application

Modeling nitrogen fixation in dead wood

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Nutrient management for onions in the Pacific Northwest [2001]

Growing hazelnuts in the Pacific Northwest : orchard nutrition

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

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