Pastures consisting of mixtures of subclover (Trifolium
subterraneum) and grasses have responded to sulfur fertilization
on many sites in Douglas County, Oregon. The objectives of this
study were to examine specific changes in forage quality which occur
as sulfur is applied in excess of the amount required for maximum
yield...
The Federal Water Pollution Control Act Amendments of 1972
prohibits the discharge of seafood processing solid wastes into
navigable waters after July 1, 1977. Oregon shrimp and crab processors
must use other methods of disposal for the 15 to 30 million
pounds of solid waste generated annually. The application of...
University supervisors are critical to improvement in K-12 teaching and learning due to their roles in designing field experiences, managing relationships, mentoring, and supervising teacher candidates. The encouragement, support, and feedback shared by university supervisors in respect to the teaching performance of teacher candidates is especially powerful, and is a...
The purpose of this hermeneutic phenomenological study was to explore the lived experience of alternatively certified agriculture teachers, acquire the practices of agriculture teachers, and participate in the agriculture teacher community of practice. The study was grounded in an interpretivist approach, which provided an alterantive perspective to the positistic-like research...
A large body of evidence suggests physical activity is inversely associated with
several cardio-metabolic risk factors among children and adolescents. Despite these
health benefits, a majority of youth are not meeting the physical activity guidelines set
forth by the USDHHS. Schools have been identified as an ideal vehicle for interventions;...
Oregon State University Extension employs county-based Extension Faculty to deliver educational programs to communities across the state. County Extension Faculty are expected to be competent in various content and training can help prepare faculty for the profession. Using a needs assessment approach, this research evaluated the training available. The results...
Nitrogen (N), phosphorus (P), and sulfur (S) fertilization
trials with Stephens winter wheat (Triticum aestivum L.) were
conducted on the Columbia Plateau under minimum and no tillage
conditions. The crop rotation was either wheat-summer fallow
(summer fallow) or wheat-wheat (recrop).
Nitrogen variables included: N rates, N timing, and N
source...
Reduction of pocket gopher damage to conifer seedlings is important to successful reforestation in many regions of the Pacific
Northwest. The objective of this study was to determine the factors that influence the local distribution of the northern pocket gopher (Thomomys talpoides Richardson) in a forested region of south-central Oregon....
Agriculture teachers, in comparison to other high school teachers, work in more varied and demanding work environments (Terry & Briers, 2010; Torres, Ulmer, & Aschenbrener, 2008). The body of literature studying the impacts of more varied and demanding work environment on early career agriculture teachers (ECATs) is commonly limited to...
As childhood obesity rises in the United States, so does the need for effective, sustainable physical activity interventions. The purpose of this study was to assess the feasibility of an early morning care program as well as determine the program’s effects on moderate-to-vigorous physical activity (MVPA) during the program and...
Family Child Care Homes (FCCHs) are the second largest provider of non-relative care in the U.S. However, despite providing care for nearly 1.9 million children under the age of 5, little is known about the physical activity levels of children attending FCCHs. This dissertation sought to provide new information with...
The purpose of this study was to unfold positions of migrating SBAE teachers to understand support and challenge to retain teachers in migratory contexts. Previous literature discusses problems related to teacher mobility as functions of teacher-student matching, teacher skill and effort, school environments, and advancing student learning. In an effort...
: ____________________________________________________________
Josh Stewart
The purpose of this study was to unfold positions of migrating SBAE teachers to
The application of lime to an acid Nekia soil significantly
increased the yield of winter wheat and alfalfa in a field experiment.
Crop yields maximized when the lime was partially mixed into the surface
four inches of the soil. Thorough mixing of the lime into the
surface six inches of...
A study, consisting of two sequential greenhouse experiments, was
designed to determine the effects of soil liming upon the fungal
partner in a mycorrhizal association. A Willamette Valley foothill
soil, of the Jory series, was limed in increments to achieve a range
of acidity and alkalinity. The P-deficiency and P-fixing...
To abstract the fundamental market structures of stumpage sold from the Siuslaw National Forest, a three-equation structural model with different assumptions on private cut was empirically derived. Under the private cut price-fixed assumption, the structural model can be simplified as a single-equation model with stumpage price as dependent variable and...
Several crops grown in the Willamette valley of western Oregon
respond to applications of boron fertilizers. The acid, highly-leached
soils of this area are naturally low in plant-available B. Application
of B to the soil annually or at less frequent intervals is currently
recommended, but the fate of applied B...
A diversity in climate, geologic parent material, and soil
characteristics exist in Jackson, Josephine, Coos, and Douglas
Counties of southwest Oregon. Previous field trials and soil testing
results have revealed uncertainties as to the phosphorus (P) status
of the soils in this area. Twenty-four sites from nine agriculturally
significant soil...
Post World War II victory culture and its fallout-the consensus ideology-led to the creation of a middle class willing to conform to a prescribed set of ideals, safely removed from all danger, and enjoying the material benefits of a growing middle-class income bracket. Walt Disney and Hugh Hefner, two seemingly...
The design considerations for fast-settling operational
amplifiers (opamps) differ significantly between sampled-data switchedcapacitor
(SC) and conventional continuous-time applications. In SC
circuits, the shape of the output voltage waveform of an opamp is of no
consequence provided that the output settles to within a specified
tolerance of its steady-state value prior...
The central question of this study was to examine the moral orientation and the role of self in subject generated moral dilemmas for information on the developmental and cultural forces contributing to the etiology and maintenance of eating disorders in college women. The research was based on the theories of...
The infrared absorption spectra in the out-of-plane
bending (v₂) region of potassium nitrate were studied for
three phases. Several types of sampled were used: nujol
mulls, fused samples, and N¹⁴-N¹⁵ isotopic mixtures. The
existence of three of the reported polymorphic phases was
confirmed by the spectra. The transitions between phase...
Two hundred thirteen mammals were captured on two study areas
between April 1976 and August 1977. Samples of urine and kidney tissue
from 202 mammals were cultured on media suitable for leptospiral growth.
Leptospiral organisms were not isolated from tissue cultures. Sera
from 88 mammals were examined by the microscopic...
Trace metals in the aquatic environment are generally concentrated
on the surface of solid geochemical phases which eventually become incorporated
into estuarine and marine sediments. The mechanism of trace
metal concentration is believed to be adsorption with various geochemical
phases such as hydrous metal oxides, clays, and organic matter.
Metals...
This internship project (Dr. Dawn Wright—Department of Geoscience) was a synthesis of several aspects of the research process. The documentation of methods consisted of: primary data collection of soil samples, geographical coordinates, georeferencing, basemap creation, laboratory machine operation, laboratory methods, laboratory quality control planning, statistical analysis, and geo-statistical analysis using...
Many centers of population in the Pacific Northwest are dependent
upon employment in the forest based industries. Mary of these
timber dependent communities look to the public forests for their raw
wood requirements. In some localities the installed capacity has outstripped
the local wood supply. This necessitates reaching into other...
Wetland soils with complex stratigraphy and redoximorphic features occur on the
margin of the Willamette Valley, Oregon. In the Jackson-Frazier wetland, vertisols
show three distinct stratigraphic units that rest uncomformably upon each other and
correspond to the Bashaw series Bss, 2Bt and 3BC horizons. Holocene alluvium
deposited as distal alluvial...
Marine reserves have increasingly been recognised for their potential to address the pervasive problem of unsustainable harvest of fisheries worldwide. Abalone catch around Stewart Island has been in decline since the turn of the century despite being managed under NZ's quota system. A nested logit model is applied to spatially...
Homes, both old and new, often have many cracks and openings, especially around windows and doors. These cracks are prime sources of heat loss by air leakage—warm air seeps out through cracks and is replaced by cold, outdoor air. Annoying drafts are present near windows or doors which need weather...
Published November 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published November 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This study sought to gain a better understanding of the communication behaviors between coaches and male and female athletes. Four focus groups (male coach and male athletes, male coach and female athlete, female coach and male athletes, and female coach and female athletes) were used to assess athletes' perceptions of...
Many domesticated animals, especially dogs, are selectively bred within a small population to select for and “fix” certain traits. This leads to decreasing genetic diversity and the potential for inherited health issues over time. The Saluki is a relatively rare breed of dog in the U.S. The Society for the...
Daikon, mizuna, mizspoona, and komatsuna are novel Asian vegetables for which a market exists in Oregon, especially in the organic sector. However, these crops are currently not grown widely in the area, despite the favorable growing environment of Oregon’s Willamette Valley. Little is known about the appropriate application level of...
The present research sought to investigate the effect of acquaintance on the accuracy of personality judgments and extend results to groups resembling families. Participants were college students ranging from 18 to 54 years of age enrolled in a ten week long "Psychological Assessment" research practicum. The study was designed to...
The agricultural industry across the United States is experiencing a shortage of qualified and interested young professionals who aspire to enter the agricultural sector. Internships have largely been used as an effective hands-on learning tool, exposing college students to an array of occupational skills and expectations in hopes of creating...
The purpose of this study was to explore the lived experiences of secondary agriculture teachers as they reconcile the competing demands of the profession in the social landscape of School-Based Agricultural Education. Previous literature about the agriculture teacher shortage problem revealed opportunities for research to utilize qualitative approaches and alternative...
Forest inventories are periodic resource assessments that can estimate items such as timber volume and value, tree growth rates, carbon sequestration, forest health status, wildlife habitat, fuel loading, and more. Traditional inventories require a large investment of resources and well-trained workforce. To date, most foresters and timber cruisers inventory forests...
The purpose of this research is to describe the secondary traumatic stress (STS) levels of early career school based agriculture (SBAE) teachers. Using the professional quality of life (ProQOL) scale (Stamm, 2010) as a theoretical framework, secondary traumatic stress, burnout (BO) and compassion satisfaction (CS) levels were measured among (n...
The abundance of algal species and their parasites
was monitored weekly for two years in a sewage lagoon
at the Corvallis Airport, Oregon. During the cooler
months, Euglena species were dominant followed by a
Chlamydomonas assemblage in the spring and a
predominantly Scenedesmus assemblage in the summer and
fall. Parasites...
