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Drainage studies on Dayton, Amity, and Willamette soils in the Willamette Valley, Oregon

Creator:: Floyd, Richard
Resource Type:: Masters Thesis
Full Text:: tile l1ne . '9 s. Th dt.tpth of tho Wt$r tabl·- 1n. W1llaxn.otte soil bot .· n pl:U"allol t1lo

Groundsurfaces and soils in the Willamette Valley, Oregon

Creator:: Beattie, John Alfred
Resource Type:: Dissertation
Full Text:: General Considerations 84 Soil Groupings 84 Soil Systems 88 Implications of Soil Systems 90

Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena

Creator:: Andersen, Jimmie Lee
Abstract:: The purpose of this study was to make a preliminary investigation of the productivity of some of the soils within the Willamette catena under different systems of soil management. The study was carried out at four experimental sites near Corvallis, Oregon, during the 1962 growing season. The soil at each...
Resource Type:: Masters Thesis
Full Text:: within the Willamette catena under different systems of soil management. The study was carried out at

Water loss and uptake in clayey subsoil materials

Creator:: Stannard, Davis Robertson
Abstract:: B and C horizon samples from twenty four selected profiles along a north-south transect in the Willamette Valley were examined for possible correlation between shrinkage properties and kind of clay minerals present. Observations of linear shrinkage, weight loss from a condition of maximum plasticity, and changing character of X-ray diffraction...
Resource Type:: Masters Thesis
Full Text:: , and changing character of X-ray dlffraction patterns were made on 'tabletsr of the untreated soil

Iron and manganese distribution and seasonal oxidation changes in soils of the Willamette drainage sequence

Creator:: Somera, Rosa Duro
Abstract:: This study was conducted to investigate the differences of the profile distribution of free iron and free manganese and the reduction-oxidation changes in soils of the Willamette drainage sequence. Based on the results of the chemical analyses, free iron and free manganese distributions in these soils were governed to a...
Resource Type:: Masters Thesis
Full Text:: and Mn in soil profiles of the Willamette drainage sequence. Comparison of the distribution and

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:: of age, and water table fluctuations were studied for nine drainf ields in five soil types ranging

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 AN ABSTRACT OF THE THESIS OF Gary Alfred Halvorson in Soil Science Doctor of

Liming requirement of selected Willamette Valley soils

Creator:: Peterson, Paul William
Abstract:: There are two major problems associated with soil acidity and lime response investigations: A. Determining how much lime (100% "available" CaCO₃ equivalent) is required to raise a soil pH (or degree of acidity) from its existing level to a specified level - presumably where need for lime is eliminated. B....
Resource Type:: Masters Thesis
Full Text:: Abstract approved: There are two major problems associated with soil acidity and lime response

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

Creator:: Pomerening, James A.
Resource Type:: Dissertation
Full Text:: A TEST OF THE DIFFERENTIATION OF SOIL SERIES WITHIN THE

Duration of saturation and redox potentials in selected Willamette Valley soils

Creator:: Austin, Will
Resource Type:: Masters Thesis
Full Text:: Master of Science in Soil Science presented on May 10, 1993. Title: Duration of Saturation and Redox

ScholarsArchive@OSU

Drainage studies on Dayton, Amity, and Willamette soils in the Willamette Valley, Oregon

Groundsurfaces and soils in the Willamette Valley, Oregon

Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena

Water loss and uptake in clayey subsoil materials

Iron and manganese distribution and seasonal oxidation changes in soils of the Willamette drainage sequence

Septic-tank drainfield performance in five Willamette Valley soils

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

Liming requirement of selected Willamette Valley soils

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

Duration of saturation and redox potentials in selected Willamette Valley soils

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