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Aggregation, bulk density, compaction, and water intake responses to winter cover cropping in Willamette Valley vegetable production

Creator:: Buller, Gilbert L.
Abstract:: Many agricultural sustainability issues are related to biological processes which are central to the ecological function of soils. Soil physical properties are the architecture in which these processes are carried out. Cover crops hold promise as one of the techniques which can ameliorate poor soil structure and improve bulk density...
Resource Type:: Masters Thesis

Soil quality dynamics in an integrated reduced-tillage and cover-cropped vegetable agroecosystem

Creator:: Banners, Candace R.
Abstract:: Soil response and function were investigated following the adoption of an integrated reduced-tillage and cover-cropped vegetable system in the Willamette Valley of Western Oregon. The experiment was conducted over three cropping seasons (2002-2004) at the Oregon State University Vegetable Research Farm (Corvallis, OR). The design was a randomized complete-block with...
Resource Type:: Masters Thesis
Full Text:: and cover-cropped vegetable system in the Willamette Valley of Western Oregon. The experiment was

Soil quality assessment of Willamette Valley soils and root colonization potential by arbuscular mycorrhizal fungi

Creator:: Allen, Natalie M.
Abstract:: Interest in measuring soil quality continues to increase worldwide in view of demands on land productivity and the necessity to preserve soil resources, yet identification of suitable indicators for soil quality assessment is still evolving. This study adapted 10 biological, physical, and chemical indicators of soil quality identified by the...
Resource Type:: Masters Thesis
Full Text:: agricultural soils in the south Willamette Valley, Oregon, USA. Soil samples from 102 sites were tested for

Septic-tank drainfield performance in five Willamette Valley soils

Creator:: Wert, Stephen R.
Abstract:: Permeability, effects of age, and water table fluctuations were studied for nine drainfields in five soil types ranging from well to poorly drained. Three sites were in Willamette, one in Woodburn, two in Amity, two in Concord, and one in Dayton soils. Before permeability of drainfields could be evaluated, methods...
Resource Type:: Masters Thesis
Full Text:: Willamette Valley Soils by Stephen Robert Wert A THESIS submitted to Oregon State University in partial

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

Composition, rating and conservation of Willamette Valley soils

Creator:: Oregon State College. Agricultural Experiment Station, Powers, W. L. (Wilbur Louis), 1887, Ruzek, C. V. (Charles Vladis), 1887-1968, and Jones, J. S. (J. Shirley), 1876-
Abstract:: Published July 1939. 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:: WILLAMETTE VALLEY SOIL PROFILES-O TO 408 OREGON AGRICULTURAL EXPERIMENT STATION Departments of Agricultural

Soils of Chehalis series and their utilization

Creator:: Oregon State Agricultural College. Agricultural Experiment Station, Powers, W. L. (Wilbur Louis), 1887, and Ruzek, C. V. (Charles Vladis), 1887-1968
Abstract:: Published May 1932. 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:: several counties in the Willamette Valley are presented in Table I. Five textural types of Chehalis soil

Soils of Willamette series and their utilization

Creator:: Oregon State Agricultural College. Agricultural Experiment Station, Powers, W. L. (Wilbur Louis), 1887, and Ruzek, C. V. (Charles Vladis), 1887-1968
Abstract:: Published December 1928. 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:: . Halversen, secretary, and specialist in Soil Bacteriology. The soil survey of the Willamette Valley has been

Progress of irrigation research on Willamette Valley soils

Creator:: Oregon State University. Agricultural Experiment Station
Abstract:: The future expansion of agricultural production in the Willamette Valley will depend to a large degree upon the feasibility of introducing irrigated agriculture on the poorly drained soils in the Valley. A r earch program has been initiated to investigate the feasibility of rigation on poorly drained soils with the...
Resource Type:: Technical Report
Full Text:: Progress of Irrigation Research On Willamette Valley Soils Agricultural Experiment Station, Oregon State

ScholarsArchive@OSU

Aggregation, bulk density, compaction, and water intake responses to winter cover cropping in Willamette Valley vegetable production

Soil quality dynamics in an integrated reduced-tillage and cover-cropped vegetable agroecosystem

Soil quality assessment of Willamette Valley soils and root colonization potential by arbuscular mycorrhizal fungi

Septic-tank drainfield performance in five Willamette Valley soils

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

Composition, rating and conservation of Willamette Valley soils

Soils of Chehalis series and their utilization

Soils of Willamette series and their utilization

Progress of irrigation research on Willamette Valley soils

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