Index Catalog // ScholarsArchive@OSU

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Creator:: Shearin, Todd E.
Resource Type:: Masters Thesis
Full Text:: ZINC SUPPLIED BY MUNICIPAL BIOSOLIDS i;i Todd E. Shearin A THESIS submitted to Oregon State

Winter cover cropping effects on integrative biological indicators of soil quality

Creator:: Ndiaye, Evelyne L.
Abstract:: Responses of biological indicators of soil quality to winter cover cropping were measured on soil samples collected from 6 commercial growers' fields and two experiment research stations in the Willamette Valley of Oregon. The research stations were the North Willamette Research and Extension Center (Aurora, OR), and the Oregon State...
Resource Type:: Masters Thesis
Full Text:: at Oregon State University (OSU) experiment research stations: the North Willamette Research and

Weathering rate, nutrient supply, and denudation in forested watersheds, southwestern Idaho batholith

Creator:: Clayton, James L. (James Lindow), 1942-
Abstract:: Biogeochemical data from four small watersheds in the Silver Creek study area, southwestern Idaho, provide the basis for: 1. An estimate of chemical and erosional denudation rates (CD and ED), 2. an estimate of plagioclase weathering rate, 3. a rational basis for estimating the rate of nutrient supply to soil...
Resource Type:: Dissertation
Full Text:: A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the

Water soluble organic fractions in sewage sludge amended soil : characterization and binding mechanisms with copper (II)

Creator:: Lim, Hyungsik
Abstract:: Application of sewage sludge to soils increases the trace metal content and the organic content of soils. The complexation of indigenous and added metals with organic constituents must be studied to evaluate metal availability to plants and animals. The water soluble organic fractions (WSOF) from an agricultural soil (W), a...
Resource Type:: Dissertation
Full Text:: thanks is extended to the Experiment Station and Oregon State University for their financial support of

Water and solute transport : modeling and application to water conservation in layered soil

Creator:: Mohammed, Fareed H. A. N.
Abstract:: Sandy soils are among the least productive soils because of their inability to store adequate water for plant growth. Their high percolation rate not only allows water to move quickly beyond the root zone, but also washes nutrients below the reach of plant roots. High evaporation occurs from the soil...
Resource Type:: Dissertation
Full Text:: LAYERED SOIL by Fareed H. A. N. Mohammed A THESIS submitted to Oregon State University in partial

Water and anion movement in selected soils of western Oregon

Creator:: Hammermeister, Dale P.
Abstract:: Experiments were carried out to study the movement of water and halide anions in perched water tables or saturated zones in the soil and upper rock mantle of eight different experimental sites located on low hills near the western border of the Willamette Valley. At each site the experimental procedure...
Resource Type:: Dissertation
Full Text:: Soil Science at Oregon State Univer- sity and funded by the Oregon Agricultural Experiment Station

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:: the disease is present in all hop growing districts in Oregon. Soil nematode populations ranged from

Varietal differences in response of winter wheat varieties to nitrogen fertilizer and environment

Creator:: Ambler, John Richard
Abstract:: The purpose of this study was to evaluate differences between winter wheat varieties in response to nitrogen fertilizer. Seven nitrogen fertilizer rate x variety factorial experiments were conducted in several environments. Dry matter and nitrogen yields at boot, soft dough, and harvest and grain yield components were measured. The yield...
Resource Type:: Masters Thesis
Full Text:: encouragement. The Oregon Agricultural Experiment Station provided funding for my studies and work. Mary Jo

Using Algal Biomass as a Fertilizer

Creator:: Cappellazzi, Shannon B.
Abstract:: Algae can be used in a variety of wastewater systems to capture nutrients while fixing carbon dioxide from the atmosphere. I conducted field trials at three locations in Oregon with both corn and potato crops to assess the agronomic value and environmental impact of using the resulting algal biomass as...
Resource Type:: Dissertation
Full Text:: Oregon with both corn and potato crops to assess the agronomic value and environmental impact of using

Urea release from sulfur-coated urea and nitrogen utilization by tall fescue

Creator:: Pettygrove, G. Stuart
Abstract:: Sulfur-coated urea (SCU), a slow release nitrogen fertilizer, may be economically competitive with conventional fertilizers, but little is known of the mechanism of urea release from SCU and the environmental factors which affect the urea release rate. Objectives of this thesis were: (1) to determine factors which affect the rate...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENTS The financial support of the Tennessee Valley Authority and the Oregon Agricultural Experiment

ScholarsArchive@OSU

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Winter cover cropping effects on integrative biological indicators of soil quality

Weathering rate, nutrient supply, and denudation in forested watersheds, southwestern Idaho batholith

Water soluble organic fractions in sewage sludge amended soil : characterization and binding mechanisms with copper (II)

Water and solute transport : modeling and application to water conservation in layered soil

Water and anion movement in selected soils of western Oregon

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

Varietal differences in response of winter wheat varieties to nitrogen fertilizer and environment

Using Algal Biomass as a Fertilizer

Urea release from sulfur-coated urea and nitrogen utilization by tall fescue

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