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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

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

Creator:: Floyd, Richard
Resource Type:: Masters Thesis
Full Text:: the Willamette Valley, Oregon DRAINAGE STUDI E S ON DAYT N , AN' ITY , AND \IIJILLAM.E Trn SOILS IN

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:: Liming requirement of selected Willamette Valley soils

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:: the Willamette Valley. Several times as large an acreage could be feasibly irri- gated. The

Creator:: Beattie, John Alfred
Resource Type:: Dissertation
Full Text:: Willamette River just south- west of Oregon City. The present day streams of the Willamette Valley in

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:: Willamette Va11ey were examined for possible correlation between shrinkage properties and kind of clay

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:: Willamette valley, south of Albany and east of the Willamette river as shown in Figure 1. The monthly

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