Index Catalog // ScholarsArchive@OSU

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:: Fernando, M.F. Sydney W.
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Crop Science presented on Soil Nitrate and Soil Fertility in the

Correlation of phosphorus soil tests and forms of inorganic soil phosphorus with crop response and phosphorus uptake from Aiken soils

Creator:: Vacharotayan, Sorasith
Resource Type:: Dissertation
Full Text:: the Amounts of Different Forms of Soil Phosphorus and Phosphorus Content of Oats and Clover Grown

Transformations of sulfur in wetland rice soils

Creator:: Islam, M. Mujibul
Resource Type:: Dissertation
Full Text:: aerobic flooding cycles. Figure 7.6. Effect of added organic residues on the ester S content in soil

The effect of selected potassium salts on the availability of soil manganese

Creator:: Westermann, D. T. (Dale Thomas), 1941-
Abstract:: Incubation experiments with an acid poorly drained soil have shown that the application of neutral soluble salts influenced the level of extractable Mn. The application of a salt which lowered the soil pH either increased the extractable Mn or retarded the oxidation and/or fixation of extractable Mn. This effect was...
Resource Type:: Dissertation
Full Text:: their studies. Available soil Mn and the Mn content found in plants were increased by the addition of

Effect of iron redistribution in soils on cesium magnetometer surveys at the Oregon State University research dairy

Creator:: Rogers, Michael
Abstract:: Contamination events at Oak Creek, which runs through Oregon State University Research lands, prompted investigations into alternate transport mechanisms for moving liquid effluent from OSU Diary lands to Oak Creek. Magnetometer surveys conducted at the Diary identified magnetic signatures spatially associated with sub-surface locations of drain tiles, a 12-inch pipe,...
Resource Type:: Dissertation
Full Text:: magnitude of the Earth's magnetic field by 500 nT or more [11] Variations in soil iron content can produce

Assessing the role of reactive metal species in soil organic matter cycling using chemical imaging

Creator:: Keiluweit, Marco
Abstract:: Intimate associations with reactive metal species permanently protect soil organic matter (SOM) from microbial access and oxidation, contributing to the build-up of organic carbon (C) stocks in soils. It is increasingly recognized, however, that such associations can be reversible and that reactive metal species might even facilitate the oxidation of...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Marco Keiluweit for the degree of Doctor of Philosophy in Soil Science

Potassium availability in some Oregon soils

Creator:: Bushnell, Vernon Clifford
Resource Type:: Dissertation
Full Text:: nitrate nitrogen, which is very strange for a well drained soil with such a favorable pH. It is low in

Diagnosis of sulfur deficiency and sulfur fertilization of Trifolium subterraneum L.

Creator:: Kiemnec, Gary L.
Resource Type:: Dissertation
Full Text:: - respond to the C:N:S ratio. If a soil is initially low in SO 4 -S and organic matter low in S content is

Interaction of ethofumesate with dry soil

Creator:: McAuliffe, David
Abstract:: Previous studies have shown loss of ethofumesate activity when the herbicide was applied to dry soil (2% w/w moisture content) in both field and greenhouse studies, even when rainfall or irrigation was received within a few days. Laboratory studies were conducted to determine the mechanism for this activity loss. Dry...
Resource Type:: Dissertation
Full Text:: applied to dry soil (2% w/w moisture content) in both field and greenhouse studies, even when rainfall or

Carbon fluxes across three climatically-distinct forest chronosequences in Oregon

Creator:: Campbell, John
Abstract:: Biometric and gas exchange techniques were used to measure soil respiration (soil surface CO₂ efflux) and NEP (Net Ecosystem Production) across three climatically-distinct forest chronosequences in Oregon. Results indicate significant forest type, age, and forest type x age interaction effects on annual soil respiration. A regional age class distribution skewed...
Resource Type:: Dissertation

ScholarsArchive@OSU

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Correlation of phosphorus soil tests and forms of inorganic soil phosphorus with crop response and phosphorus uptake from Aiken soils

Transformations of sulfur in wetland rice soils

The effect of selected potassium salts on the availability of soil manganese

Effect of iron redistribution in soils on cesium magnetometer surveys at the Oregon State University research dairy

Assessing the role of reactive metal species in soil organic matter cycling using chemical imaging

Potassium availability in some Oregon soils

Diagnosis of sulfur deficiency and sulfur fertilization of Trifolium subterraneum L.

Interaction of ethofumesate with dry soil

Carbon fluxes across three climatically-distinct forest chronosequences in Oregon

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