Index Catalog // ScholarsArchive@OSU

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:: Feaga, Jeff
Abstract:: The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...
Resource Type:: Masters Thesis

Bird community patterns of spring-seasonal and semi-permanent wetlands in the Sacramento Valley, California

Creator:: Harris, P. Dawn
Abstract:: Freshwater wetlands in the Sacramento Valley provide breeding, wintering, foraging and stopover habitat for migratory and resident birds. With a loss of 95% of historic freshwater wetlands, the restoration of wetlands on private land could provide important habitat for birds. Documentation and monitoring of bird use on previously restored wetlands...
Resource Type:: Masters Thesis
Full Text:: Winner, Daniel Rosenberg and Mike Gamroth, I extend thanks for their insights and contributions to the

A business feasibility tool for artisan cheese operation start-up

Creator:: Bouma, Andrea
Abstract:: The objective of this study was to develop a decision making tool to determine economic feasibility of artisan cheese operations. A survey of current Oregon artisan cheese companies was used to gain knowledge of the fixed and variable costs associated with cheese production and business start-up. The data from this...
Resource Type:: Masters Thesis

Development of a lexicon for staling aromas in North American lager and analysis of consumer preference and difference

Creator:: Edwards van Muijen, Christina Veronique
Abstract:: Staling in beer is inevitable. Oxidation and increased temperatures are the main causes of stale flavors in bottled beers. Since 1934, research has been done to identify compounds and pathways involved in creating stale flavors. Although many research papers report stale flavors, there is not a lexicon per se of...
Resource Type:: Masters Thesis
Full Text:: members, Alix Gitelman, Mark Daeschel and Mike Gamroth for their support. I can't imagine how I would

Water use characteristics of ten newly established cool-season turfgrass species

Creator:: Blankenship, Tod M.
Abstract:: Water use restrictions are continuing to have an impact on the way turf is managed today and will be managed in the future. The objective of this research was to evaluate the irrigation requirements of ten newly established cool-season turfgrass species maintained under two different mowing height and nitrogen fertility...
Resource Type:: Masters Thesis
Full Text:: would like to thank Mr. Chris Gaynor for advising on statistical aspects of this research and Mr. Mike

Estimating plant-available nitrogen release from manures, composts, and crop residues

Creator:: Gale, Eric S.
Abstract:: In order to properly utilize organic amendments as nitrogen sources, reliable methods to estimate plant-available nitrogen (PAN) are needed. The objectives of this study were to (1) evaluate the use of crop and soil responses in fertilizer N equivalence (FNE) calculations, (2) examine the relationships between the C/N ratio, total...
Resource Type:: Masters Thesis
Full Text:: Willamette Research and Extension Center My committee members: Neil Christensen, Virginia Lesser, and Mike

The economic impacts of sagebrush steppe wildfires on an eastern Oregon ranch

Creator:: Maher, Anna T.
Abstract:: The relative success of restoration practices on cheatgrass infested sagebrush steppe lands in the Great Basin can affect the probability of crossing an ecological threshold and have economic effects on cattle ranches using federal rangelands. Cheatgrass invasion implies an increase in the risk of fire, which in turn increases the...
Resource Type:: Masters Thesis
Full Text:: representative Dr. Mike Gamroth, as they, along with Dr. Tanaka, served on my M.S. Committee and offered

The use of natural plant extracts as a feed additive to prevent laminitis in lactating dairy cows

Creator:: Pierson, Miranda L.
Abstract:: Two experiments were conducted looking at both acute and sub-acute laminitis. An acute nutritional induction model was used to examine whether blood profiles and gene expression are similar to other studies conducted using an endotoxin induction model. Twelve sheep were randomly assigned to three treatment groups which were control, 4-hour...
Resource Type:: Masters Thesis
Full Text:: Mike Gamroth and Dr. Robert Tanguay for joining my graduate committee on such short notice. I would

Implementing best management practices in small commercial and non-commercial animal enterprises

Creator:: Godwin, Derek C.
Abstract:: Small commercial and non-commercial animal enterprises (SCAEs) raise a few beef cows, horses, pigs, sheep, poultry, and other animals on a few acres. These enterprises are often located in suburban areas of watersheds and show potential for degrading water quality through to increased bacterial, nitrogen, and phosphorus concentrations. SCAEs implement...
Resource Type:: Masters Thesis
Full Text:: Science, Mike Gamroth of the Department of Animal Science, and especially Dr. J. Ronald Miner of the

Monitoring of groundwater and surfacewater interactions on the Walla Walla River, Oregon for the purpose of restoring in-stream flows for ESA listed fish habitat

Creator:: Metcalf, Becky Elise
Abstract:: In an effort to restore summer flows in the Walla Walla River to provide passage and habitat for ESA (endangered species act) listed bull and steelhead trout irrigation districts left 13 cubic-feet-per-second (c.f.s) (0.37 m ³/s) in the main channel during irrigation season (May-November) for the first time in over...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Bird community patterns of spring-seasonal and semi-permanent wetlands in the Sacramento Valley, California

A business feasibility tool for artisan cheese operation start-up

Development of a lexicon for staling aromas in North American lager and analysis of consumer preference and difference

Water use characteristics of ten newly established cool-season turfgrass species

Estimating plant-available nitrogen release from manures, composts, and crop residues

The economic impacts of sagebrush steppe wildfires on an eastern Oregon ranch

The use of natural plant extracts as a feed additive to prevent laminitis in lactating dairy cows

Implementing best management practices in small commercial and non-commercial animal enterprises

Monitoring of groundwater and surfacewater interactions on the Walla Walla River, Oregon for the purpose of restoring in-stream flows for ESA listed fish habitat

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