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Distribution and characteristics of loess-like soil parent material in northwestern Oregon

Creator:: Theisen, A. A. (Arthur A.)
Resource Type:: Masters Thesis
Full Text:: ). The sedimentation cylinders used for the clay and fine silt determination were kepL in a constant

Some chemical characteristics of the saline and alkali soils in the Baker Valley area, Oregon

Creator:: Sayegh, Antoine Hanna
Resource Type:: Masters Thesis
Full Text:: adjaomt to a Wingville sUty clay loam which was a saline soil. Only tYO of the fifteEn Baines sUt loam

Thin-section micromorphology of eight Oregon soils

Creator:: Norgren, Joel A.
Resource Type:: Masters Thesis
Full Text:: loani B21 38-39g. . . . . 23 12. Jory 8ilty clay loam A 19-20". . . . 31 13. Jory silty clay lown A3

Relationships among phosphorus soil tests, forms of soil phosphorus, and plant uptake of phosphorus for selected southwestern Oregon soils

Creator:: Doerge, Thomas A.
Abstract:: A diversity in climate, geologic parent material, and soil characteristics exist in Jackson, Josephine, Coos, and Douglas Counties of southwest Oregon. Previous field trials and soil testing results have revealed uncertainties as to the phosphorus (P) status of the soils in this area. Twenty-four sites from nine agriculturally significant soil...
Resource Type:: Masters Thesis
Full Text:: availability and a wide variety of soil chemical properties, including clay type and content, organic matter

Genesis of some soils in the central western Cascades of Oregon

Creator:: Brown, R. B.
Abstract:: Soils representative of several landscape units in the H. J. Andrews Experimental Forest, Western Cascade Range, were sampled, analyzed, and tentatively classified. Genetic inferences were drawn relating soils to landscape position and other factors of soil formation. Descriptive information and nutrient capital data were provided to support ecosystem modelling efforts...
Resource Type:: Masters Thesis
Full Text:: shear failure. Soil and rock colors provide a field guide for prediction of clay mineralogy and

Readily available manganese in some Oregon soils and its relation to certain other soil factors

Creator:: Kirsch, R. K. (Richard Kneale), 1923-
Abstract:: With agriculture continuing to play an ever-increasing role in our modern economy, more and more attention is being directed toward the hitherto more or less neglected finer points of crop production. In the past it has been the tendency to concentrate research on those factors which most obviously affect agricultural...
Resource Type:: Masters Thesis
Full Text:: symptoms appeared with less than 40 ppm. A 13 sanpie of Olympic clay loam from an orchard which

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Creator:: Culver, Roger Norman
Abstract:: As the management of range lands is intensified or as improvement activity is increased, a critical need is seen to refine the understanding of the ecology of these lands. If soil surveys on range lands are to be meaningful and useful, the relationship between the fundamental ecological units and the...
Resource Type:: Masters Thesis
Full Text:: is increased, a critical need is seen to refine the understanding of the ecology of these lands. If

Extractable forms of Al and Fe in acid Western Oregon soils

Creator:: Spycher, Gody
Abstract:: Extractable forms of Al and Fe were studied in five soils from the Coast Range, and in two soils from the Willamette Valley in Oregon. Exchangeable Al was determined in a way which permitted a comparison of three different methods for its determination. Values for exchangeable Al obtained by the...
Resource Type:: Masters Thesis
Full Text:: due to the interaction of protons with the clay lattice. This results in a breakdown of the lattice

Characteristics of compacted soils from Eastern Oregon

Creator:: Goh, Hock Swee
Abstract:: Soil samples and soil clods were collected from ten potato fields in Eastern Oregon. An index of grain size distribution was sought that would correlate well with compacted soil bulk density. The Hazen coefficient of uniformity was best related to bulk density. The limitations of various indices and their relationship...
Resource Type:: Masters Thesis
Full Text:: clay, the soil mixture being subjected to a suction of 47 mb. and having a water content of 13.87. by

Rainfall, surface sealing, runoff, and erosion on Jory soil series in western Oregon

Creator:: King, Joel Thomas
Resource Type:: Masters Thesis
Full Text:: Fractions 38 3 X-ray Diffraction Patterns from Clay-Sized 42 Material at Site A 4 X-ray Diffraction

ScholarsArchive@OSU

Distribution and characteristics of loess-like soil parent material in northwestern Oregon

Some chemical characteristics of the saline and alkali soils in the Baker Valley area, Oregon

Thin-section micromorphology of eight Oregon soils

Relationships among phosphorus soil tests, forms of soil phosphorus, and plant uptake of phosphorus for selected southwestern Oregon soils

Genesis of some soils in the central western Cascades of Oregon

Readily available manganese in some Oregon soils and its relation to certain other soil factors

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Extractable forms of Al and Fe in acid Western Oregon soils

Characteristics of compacted soils from Eastern Oregon

Rainfall, surface sealing, runoff, and erosion on Jory soil series in western Oregon

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