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The impact of nutria (Myocastor coypus) on marsh vegetation in the Willamette Valley, Oregon

Creator:: Wentz, William Alan
Abstract:: The relation of nutria (Myocastor coypus) feeding to total abundance, species composition, and seasonal use of the marsh flora on the William L. Finley National Wildlife Refuge was studied during 1969 and 1970. Nutria numbers were estimated by livetrapping. Food habits data were compiled from observations of feeding nutria. Phenology,...
Resource Type:: Masters Thesis

Quilts and quilt-making in the Willamette Valley of Oregon

Creator:: Meloy, Betty Thiessen
Abstract:: This thesis is a documentation of a selected number of nineteenth century quilts studied by the investigator in the Willamette Valley. The quilts were located in museums and in individual's homes. A questionnaire, that was developed for this study of quilts, was filled out as each quilt was examined. Slides...
Resource Type:: Masters Thesis

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

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

Creator:: Tsutsui, Setsuo Harry
Abstract:: The wetlands are distinguished from other lands of the Mid-Willamette Valley by excessive soil moisture. The wetlands, as defined for this study, consist of 20 soil series (in 22 soil mapping units) which are classified by the Soil Conservation Service as having excessive wetness as the major factor limiting their...
Resource Type:: Dissertation
Full Text:: Basin Wetlands of the Five-County Area, Mid- Willamette Valley, Oregon Page 6 7 3 Climograph of

A statistical study of the correlation between the surface and surface geostrophic winds in the Wilamette Valley

Creator:: Andrews, Leta
Abstract:: Relationships among the surface wind, horizontal synoptic-scale pressure gradient and topography are studied in the Willamette Valley in western Oregon. Terrain features alter the standard surface wind-pressure gradient relationship such that the angle between the surface wind and the surface geostrophic wind is most frequently 60°. In winter the surface...
Resource Type:: Masters Thesis
Full Text:: the wind may be clearly seen in the Willamette Valley of western Oregon. The purpose of this study is

Quantitative evaluation of winter fluctuating water tables for drainage criteria in the Willamette Valley

Creator:: Nibler, John Charles
Resource Type:: Masters Thesis
Full Text:: Willamette Valley by John Charles Nibler A THESIS submitted to Oregon State University in partial

Alfalfa management in the Willamette Valley of Oregon

Creator:: McGuire, William S. (William Saxon), 1922- and Oregon State University. Agricultural Experiment Station
Abstract:: Published August 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
Resource Type:: Technical Report
Full Text:: Alfalfa Management in the Willamette Valley of Oregon 0 Q__fr7

An alternative to clearcutting

Creator:: Logan, Robert S. (Robert Steven), 1945-
Abstract:: Clearcutting is a sound silvicultural practice when exercised in the proper environmental location. Foresters have learned through bitter experience that clearcutting Douglas-fir forests, located on droughty south-facing slopes, often leaves uncorrectable regeneration problems. Thousands of acres of unproductive grass and brush throughout the Douglas-fir region are unavoidable reminders of inappropriate...
Resource Type:: Masters Thesis

The Willamette River greenway : cultural and environmental interplay

Creator:: Honey, William D.
Resource Type:: Technical Report
Full Text:: -4034-W5 1 Oregon State University Corvallis, Oregon ABSTRACT The Willamette River Basin, Oregon

Effect of fertilizers on yield and quality of potatoes in the Willamette Valley

Creator:: Jackson, T. L. (Thomas Lloyd), 1922-, Sheets, W. A. (Willis Arden), Gardner, Ernest Hugh, Smith, R. L., Bullock, Richard M. (Richard Melvin), 1918-, McDermid, J. T. (Jack Thomas), Lighty, Willard, and Werth, H.
Abstract:: Data from fertilizer experiments with potatoes in the Willamette Valley from 1961 through 1971 show that responses have been measured from nitrogen, phosphorus, potassium, magnesium, and lime. Responses from these nutrients have been related to soil and/or plant analysis values. In recent years most of the potato production has moved...
Resource Type:: Technical Report
Full Text:: river bottom and valley floor soils. Approximately half the potatoes in the Willamette Valley are

ScholarsArchive@OSU

The impact of nutria (Myocastor coypus) on marsh vegetation in the Willamette Valley, Oregon

Quilts and quilt-making in the Willamette Valley of Oregon

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

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

A statistical study of the correlation between the surface and surface geostrophic winds in the Wilamette Valley

Quantitative evaluation of winter fluctuating water tables for drainage criteria in the Willamette Valley

Alfalfa management in the Willamette Valley of Oregon

An alternative to clearcutting

The Willamette River greenway : cultural and environmental interplay

Effect of fertilizers on yield and quality of potatoes in the Willamette Valley

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