Index Catalog // ScholarsArchive@OSU

Extraction and plant availability of cadmium and zinc in a Willamette sandy loam soil

Creator:: Halvorson, Gary Alfred
Abstract:: A Willamette sandy shot loam was treated with ZnC1₂, CdC1₂, or sewage sludge to determine the chemical fate of added Cd and Zn in the soil and their influence on the growth of corn and wheat seedlings. Cadmium was added as CdC1₂ at rates of 0, 5, 20, or 80...
Resource Type:: Dissertation
Full Text:: WILLAMETTE SANDY LOAM SOIL by Gary Alfred Halvorson A THESIS Submitted to Oregon State University in

A test of the differentiation of soil series within the Willamette catena

Creator:: Pomerening, James A.
Resource Type:: Dissertation
Full Text:: northwestern Oregon. The Willamette Valley is about 125 miles long and from 15 to 40 miles wide. It is

Synecology of the white-oak (Quercus garryana Douglas) woodlands of the Willamette Valley, Oregon

Creator:: Thilenius, John F., 1931-
Abstract:: Quercus garryana dominated plant communities are found in the interior coastal valleys and on foothills from southeastern Vancouver Island, British Columbia, south to San Francisco, California. They occur as savannas, intermixed with a variety of conifers, and in almost pure stands. The diversity of habitats occupied by the species and...
Resource Type:: Dissertation
Full Text:: ) woodlands of the Willamette valley, Oregon AN ABSTRACT OF THE THESIS OF JOHN FREDRICK THILENIUS for the

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Creator:: Al-Zabidi, Ahmed Hizam, 1953-
Abstract:: Role of temperature and photoperiod on development of the filbert leafroller, Archips rosanus L., (Lepidoptera: Tortricidae) from the Willamette Valley, Oregon was studied in the laboratory and in the field. Both temperature and photoperiod had a significant influence on the developmental rate of this species from neonate larva to adult...
Resource Type:: Dissertation
Full Text:: the Willamette Valley of Oregon. Abstract approved: Professor. M. T. AliNiazee Role of

Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Creator:: Qureshi, Maqsood Hassan
Abstract:: Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon. Depending upon previous crop and soil type, current N fertilizer recommendations for wheat in the Willamette Valley vary widely. Excessive fertilizer poses environmental risk, whereas lower N inputs than required by the crop represent...
Resource Type:: Dissertation
Full Text:: . Christensen Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon

Determinants of microbial community structure and substrate utilization potential in soils of vegetable cropping systems

Creator:: Schutter, Mary E.
Abstract:: The Oregon Long-Term Soil Quality Project was initiated to identify soil properties that respond rapidly to alternative management practices. Such practices included winter cover cropping, which was implemented at two experimental research stations and several grower fields throughout the Willamette Valley. The goal of this thesis was to identify the...
Resource Type:: Dissertation
Full Text:: the Willamette Valley. The goal of this thesis was to identify the major impacts of cover cropping on

Land use distributions and changes in the Willamette Valley in relation to soil characteristics

Creator:: Wiens, John Herbert
Abstract:: A study was undertaken in the Willamette Valley, Oregon, to document 1971 land use patterns as well as land use change in a smaller study area in the 16 years prior, and to relate these to soil characteristics. Quantification of these inter-relationships was aided by use of computer tabulation and...
Resource Type:: Dissertation
Full Text:: photointerpretive factors to mapping land use and cover classes in the Willamette Valley, Oregon. 113 7 1971 land

Seed yield and yield components of Pennfine perennial ryegrass (Lolium perenne L.) as influenced by time and rate of spring nitrogen and chemical dwarfing

Creator:: Young, William C. (William Clyde)
Abstract:: Seed yield in perennial ryegrass is the product of yield components that develop during the life of the plant. Crop yield potential is defined by the number of fertile tillers, spikelets per spike, and florets per spikelet. It has been shown that perennial ryegrass realizes only a small percentage of...
Resource Type:: Dissertation
Full Text:: desirable turf characteristics. The Willamette Valley of Oregon produces nearly all of the perennial

Costs of alternative pollution control policies affecting open field burning in the Willamette Valley of Oregon : a study in measurement

Creator:: Brar, Jagjit Singh
Abstract:: Open field burning is the lowest-cost method of harvest residue disposal used extensively by grass seed producers in the Willamette Valley of Oregon. The beneficial effects of open field burning include effective disease control and increased seed yields. However, smoke produced by open burning in the late summer pollutes valley...
Resource Type:: Dissertation
Full Text:: FIELD BURNING IN THE WILLAMETTE VALLEY OF OREGON: A STUDY IN MEASUREMENT Abstract approved: R

An economic analysis of farms producing grass seed in the Willamette Valley, with special attention to the cultural practice of field burning

Creator:: Fisher, Douglas Earl
Abstract:: Grass seed producers in Oregon's Willamette Valley have employed the cultural practice of post-harvest open field burning since the mid-1940's for purposes of field sanitation and crop residue disposal This practice creates environmental quality problems of air pollution during the late summer Recent public concern over the valley's environmental quality...
Resource Type:: Dissertation
Full Text:: Farm family labor use on 147 sample farms pro- ducing grass seed in the Willamette Valley, Oregon. 61

ScholarsArchive@OSU

Extraction and plant availability of cadmium and zinc in a Willamette sandy loam soil

A test of the differentiation of soil series within the Willamette catena

Synecology of the white-oak (Quercus garryana Douglas) woodlands of the Willamette Valley, Oregon

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Determinants of microbial community structure and substrate utilization potential in soils of vegetable cropping systems

Land use distributions and changes in the Willamette Valley in relation to soil characteristics

Seed yield and yield components of Pennfine perennial ryegrass (Lolium perenne L.) as influenced by time and rate of spring nitrogen and chemical dwarfing

Costs of alternative pollution control policies affecting open field burning in the Willamette Valley of Oregon : a study in measurement

An economic analysis of farms producing grass seed in the Willamette Valley, with special attention to the cultural practice of field burning

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search