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Sulfur oxidation and rhodanese activity in soils

Creator:: Deng, Shiping
Resource Type:: Masters Thesis
Full Text:: Shiping Deng AN ABSTRACT OF THE THESIS OF for the degree of Master of Science in Soil Science presented

Multivariate geostatistical analysis of evapotranspiration and elevation for various climatic regimes in Oregon

Creator:: Martinez-Cob, Antonio
Resource Type:: Dissertation
Full Text:: Cob for the degree of Doctor of Philosophy in Soil Science presented on May 4. 1990 Title

Verticillium wilt, nematodes, and soil fertility interactions in hop yards

Creator:: Barth, Alexander W.
Abstract:: Verticillium wilt of 'Willamette' hops (Humulus lupulus) was investigated to identifY the causal organism, to determine the incidence of the disease, and to explore the possibility of interactions with soil fertility and/or nematodes. In the first year of a three year study, sampling of yards followed a "searching for extremes...
Resource Type:: Masters Thesis
Full Text:: Science in Soil Science presented on July 25, 1990. Title: Verticillium Wilt, Nematodes, and Soil

Fertilizer use efficiency of container-grown junipers

Creator:: Thomson, Thomas W.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Thomas W. Thomson for the degree of Master of Science in Soil Science

Effects of microsite alteration on soil climate, nitrogen mineralization, and establishment of Picea Glauca x Engelmannii seedlings in the sub-boreal spruce zone of west-central British Columbia

Creator:: Macadam, Anne M.
Abstract:: Site preparation treatments are often used prior to the planting of clearcut forest lands to improve planter access and to increase the number and quality of planting spots. Most mechanical site preparation treatments alter the configuration and material composition of surface soil materials, and can have marked effects on soil...
Resource Type:: Masters Thesis
Full Text:: Science in Soil Science presented on April 3, 1991. Title: Effects of Microsite Alteration on Soil

A soil property model for evaluating pesticide movement potential

Creator:: Vogue, Margaret A.
Abstract:: Prevention of groundwater contamination by agricultural chemicals requires an understanding of the complex processes that control pesticide movement below the soil surface. Through this understanding it is possible to try to predict which areas may be most vulnerable to contamination. The many models that have been developed to characterize pesticide...
Resource Type:: Masters Thesis
Full Text:: potential AN ABSTRACT OF THE THESIS OF Margaret A. Vogue for the degree of Master of Science in Soil

Consolidation, compression, and shear strength of four western Oregon forest soils

Creator:: McNabb, David H.
Abstract:: Forest soils with low bulk densities are often considered less susceptible to compaction than soils with higher bulk densities. The objective of this study was to determine if soil strength controlled the compression of soils with low bulk density. Four soils were selected for this evaluation. Three of these were...
Resource Type:: Dissertation
Full Text:: Philosophy in Soil Science presented on April 2, 1990 Title: Consolidation, Compression, and Shear Strength

Dynamic mathematical model of oxygen and carbon dioxide exchange between soil and atmosphere

Creator:: Ou-yang, Ying
Abstract:: Gaseous transport through soil in the presence of soil microorganisms has been investigated. More recently, modeling of gaseous transport in the unsaturated zone has been investigated. However, the problem of mathematical model of oxygen and carbon dioxide transport through soil, as affected by the climatic conditions, the transport of soil...
Resource Type:: Dissertation
Full Text:: of Philosophy in Soil Science presented on September 27, 1990 Title: Dynamic Mathematical Model of

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Creator:: Wanjagi, Francis Ndung'u
Abstract:: In a series of greenhouse experiments, isolates representing serotypically distinct subpopulations of Rhizobium leguminosarum bv. trifolii recovered from root nodules of field-grown subclover Trifolium subterraneum cv. "Nangeela"), were evaluated for their symbiotic effectiveness potential, their effect on regrowth potential of subclover, and for their competitive abilities to form nodules. Isolates...
Resource Type:: Masters Thesis
Full Text:: Francis NdOncii.i Waniagi for the degree of Master of Science in Soil Science presented on January 27

Effects of ryegrass residue management on Dayton soil organic carbon content, distribution and related properties

Creator:: Chapin, Michele F.
Abstract:: Total organic carbon, total nitrogen, microbial respiration and enzyme activity (β-glucosidase) were measured on several horizons of a Dayton silt loam (fine, montmorillonitic, mesic, Typic Albaqualf) soil cropped to annual ryegrass under two straw residue management systems. The study evaluated the effects of annual burning of straw residues or annual...
Resource Type:: Masters Thesis
Full Text:: of for the degree of Master of Science in Soil Science presented on March 13, 1992. Title: Effects

ScholarsArchive@OSU

Sulfur oxidation and rhodanese activity in soils

Multivariate geostatistical analysis of evapotranspiration and elevation for various climatic regimes in Oregon

Verticillium wilt, nematodes, and soil fertility interactions in hop yards

Fertilizer use efficiency of container-grown junipers

Effects of microsite alteration on soil climate, nitrogen mineralization, and establishment of Picea Glauca x Engelmannii seedlings in the sub-boreal spruce zone of west-central British Columbia

A soil property model for evaluating pesticide movement potential

Consolidation, compression, and shear strength of four western Oregon forest soils

Dynamic mathematical model of oxygen and carbon dioxide exchange between soil and atmosphere

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Effects of ryegrass residue management on Dayton soil organic carbon content, distribution and related properties

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