Index Catalog // ScholarsArchive@OSU

Distribution, form, and signigicance of plant opal in Oregon soils

Creator:: Norgren, Joel A.
Abstract:: This study was undertaken to increase knowledge of opal phytoliths in plants and soils of Oregon, and thus encourage further use of phytoliths in future pedologic investigations. Content of plant opal in needles from ten common Oregon conifer species ranged from 0.2 to 7.9%. Western larch (Larix occidentalis) contained the...
Resource Type:: Dissertation

Identification of potential copper and molybdenum livestock nutrition problems with forage analysis

Creator:: Kresge, Paul Owen
Abstract:: Copper deficiency and Mo-induced Cu deficiency are nutrition problems of ruminant livestock in the Burns and Klamath Falls area of Oregon. Chemical analysis of plant and soil samples was used to survey Cu and Mo levels in forage in these areas. The objectives were to assess the possibility of animal...
Resource Type:: Masters Thesis

Molybdenum status of subclover (Trifolium subterraneum) as affected by Mo and S fertilization and soil type

Creator:: Jarrell, Wesley M.
Abstract:: Field studies designed to study residual effects from fertilizer molybdenum were initiated in September 1971 on established grass-clover pastures at ten sites in Western Oregon. Treatments were 0.0 and 1.12 kg molybdenum /ha on plots receiving 0-35-0-20S fertilizer (elemental sulfur-S) and 0.0, 0.56, 1.12 and 2.24 kg molybdenum /ha on...
Resource Type:: Masters Thesis

Temperature and water potential effects on physiological functions of sudangrass (Sorghum vulgare var. Piper)

Creator:: Young, Richard Su-Shung
Abstract:: Temperature and water potential effects on the growth, transpiration, total nonstructural carbohydrate (TNC) content, and nutrient uptake of sudangrass (Sorghum vulgare var. piper) were investigated in laboratory experiments. The effect of nitrogen supply on the growth and nutrient uptake at constant soil water potential was also investigated in this study....
Resource Type:: Dissertation

Plant biomass and nutrient distribution in a young Pseudotsuga menziesii forest ecosystem

Creator:: Webber, Bruce Douglas
Resource Type:: Dissertation

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

Nitrogen accumulation during the growing season by russett Burbank potatoes (Solanum tuberosum)

Creator:: Kanji, Badrudin Jamal
Abstract:: Nitrogen is one of the most important nutrients influencing potato yields. The potential for environmental pollution from N is also greater than for other nutrients added as fertilizer because excessive amounts applied are subject to leaching into drainage water. The purpose of this study was to improve N fertilizer recommendations...
Resource Type:: Masters Thesis

Techniques for identifying flood plains in Oregon

Creator:: Reckendorf, Frank Fred
Abstract:: Seven methods for delineating flood plains were evaluated. The methods are classified : (1) Geomorphic Technique; (2) Soils Technique; (3) Botanical Technique; (4) Hydrologic Technique; (5) Hydrologic- Hydraulic Technique; (6) Historical Technique; and (7) "Combination Method". All of the methods, except the Botanical Technique and the Hydrologic-Hydraulic Technique, were compared...
Resource Type:: Dissertation

An evaluation of soil warming for increased crop production

Creator:: Rykbost, K. A.
Abstract:: In regions where soil temperatures limit plant growth, artificial soil warming may be an economically feasible practice. This hypothesis was evaluated in a soil warming experiment near Corvallis, Oregon. This experiment was prompted by the observation that multiple use of waste heat discharged in the condenser cooling water of thermal...
Resource Type:: Dissertation

Turbidity in Prineville Reservoir as related to soils and hydrology

Creator:: Silvernale, Clair Ellwood
Abstract:: Persistent levels of high turbidity in the outflow from the Prineville Reservoir led to development of relationships between watershed soils, land use, and resource management and water quality in the Upper Crooked River, Central Oregon. Seven stations, strategically located for measurement of runoff volume and water sample collection, were established...
Resource Type:: Masters Thesis

The nature and properties of amorphous colloids formed from Mazama tephra

Creator:: Dingus, Delmar DeLee
Abstract:: Soil samples from the Mazama tephra deposit were collected from the AC and C2 horizons at five different locations along the axis of the main depositional lobe. The clay fraction from the samples was recovered and studied by means of chemical, x-ray, DTA and electron microscopy methods in order to...
Resource Type:: Dissertation

Potato yield and grade as influenced by nitrogen fertilizer and irrigation frequency

Creator:: Jacks, Clinton Cecil
Abstract:: The effects of irrigation frequencies and rates and time of nitrogen fertilizer application on the yields, grades and N status of Russet Burbank potatoes were determined on a sandy soil near Hermiston, Oregon. Increasing the frequency of irrigation from 72 to 48 to 12-hours did not result in increases of...
Resource Type:: Masters Thesis

Genesis, mineralogy, and properties of Parkdale soils, Oregon

Creator:: Harris, Billy Lynn
Resource Type:: Dissertation

Corn (Zea mays L.) yields as influenced by nitrogen, row spacing and intercropped ryegrass (Lolium multiflorum)

Creator:: Wivutvongvana, Paibool
Abstract:: Two field corn experiments were conducted on a Woodburn silt loam soil near Corvallis, Oregon, in 1972-1973 to investigate the effects of certain soil management practices on the yield and performance of corn (Zea mays L.). Experiment I involved variables that included three corn row spacings (76, 114, and 152...
Resource Type:: Masters Thesis

Atrazine, terbutryn and GS-14254 adsorption, desorption and solubility in salt solutions and movement in soil materials

Creator:: Gaynor, John Donald
Resource Type:: Dissertation

Mineralogy and trace element chemistry of Mazama ash soils

Creator:: Dudas, Marvin Joseph
Resource Type:: Dissertation

Influence of cations on aluminum toxicity in wheat (Triticum aestivum Vill., Host)

Creator:: Erfan Ali, Shaikh Muhammad
Abstract:: The toxicity of aluminum (Al) to wheat (Triticum aestivum Host) was studied under controlled conditions using a technique designed to evaluate the recovery of root growth following a relatively brief (48 hour) exposure to nutrient solutions containing Al, When wheat seedlings were exposed to a minimum critical concentration of Al,...
Resource Type:: Dissertation

Some soil factors affecting snowbrush nodulation

Creator:: Scott, William
Resource Type:: Dissertation

Physiological effects of water stress on young corn plants

Creator:: Barlow, Edward William Ross
Abstract:: Laboratory experiments were used to investigate the mechanism of plant response to water stress by determining the sensitivity of leaf elongation, photosynthesis and transpiration in young corn plants to a decrease in leaf water potential. In initial experiments, 9 day old corn plants were grown at soil water potentials of...
Resource Type:: Dissertation

Disposal of municipal wastes on sandy soil : effect on plant nutrient uptake

Creator:: Cottrell, Nancy McCombs
Abstract:: Solid municipal waste was applied to Sagehill sand at rates of 0, 100, 200, and 400 tons/acre (0, 67, 133, and 267 tons dry matter). Sewage sludge (2% solids) was applied at 55 gallons per ton of solid waste. Hyslop winter wheat was planted as a cover crop in October...
Resource Type:: Masters Thesis

Movement of elemental constituents in sagehill loamy sand treated with municipal waste

Creator:: Halvorson, Gary Alfred
Abstract:: Metropolitan solid wastes and sewage sludges present a serious disposal problem for many communities. To assess the feasibility of disposal or utilization of these waste products on soils, a study was initiated to evaluate plant growth and soil elemental interactions on a loamy fine sand treated with metropolitan waste. Shredded...
Resource Type:: Masters Thesis

Disposal of dairy cow waste slurries on Amity silty clay loam soil

Creator:: Tucker, Gary Bert
Abstract:: Intensification of livestock operations has enhanced the problem of animal waste disposal. Since high application rates of the waste to soils would help elevate the problem, a study was established to determine water quality as affected by applications of dairy waste slurries to tiled and untiled soils. Dairy cow waste...
Resource Type:: Masters Thesis

Experimental analysis of subsurface heating and irrigation on the temperature and water content of soils

Creator:: Sepaskhah, Ali Reza
Abstract:: Multiple use of waste heat from power plants may become an important consideration in the development, siting, and certification of these plants. A multiple use system of components that can beneficially utilize waste heat may include home heating and cooling, greenhouses, animal enclosures, open basins for single cell protein production...
Resource Type:: Dissertation

Comparative study of some soil characteristics of grassland and forest/grassland transition in western Oregon

Creator:: Ezenwa, Matthew Ikechuku Sunday
Abstract:: Vegetation as a soil-forming factor was studied under forest transition and grass while attempting to keep other soil forming factors constant in the western part of the Willamette Valley, Oregon. The physiographic units consist chiefly of the interior foothills and slopes formed from an old basaltic flow with some interspersed...
Resource Type:: Masters Thesis

The reactions of picloram and 2, 4-D with montmorillonite clays and soils

Creator:: Kuo, Eugene Cheng-yen
Resource Type:: Dissertation

Effect of N, Mn, and Cu treatments on nutrient uptake by barley, oats, wheat, and triticale

Creator:: Kalayci, Mufit
Abstract:: Experiments were established on a Warden soil on Lower Klamath Lake area to evaluate the effect of Mn and Cu, and Band applications of ammonium sulfate on the uptake of micronutrients and response from Mn and Cu applied for the production of small grain crops. Band application of ammonium sulfate...
Resource Type:: Masters Thesis

The geomorphology and stratigraphy of Elkins Road Watershed

Creator:: Glasmann, Joseph Reed
Resource Type:: Masters Thesis

Effect of soil moisture, temperature, bulk density, and texture on emergence of three wheat varieties (Triticum aestivum, L)

Creator:: Halitligil, Mahmut Basri
Abstract:: The effects of soil moisture (-2 to -17 bars), temperature (5 to 20°C), bulk density (0.90 to 1.40 gm/cm³) and texture (Bashaw silty clay and Woodburn silt loam) on germination and seedling emergence of three varieties (Yamhill, Bezostaya, Kirac 66) of wheat (Triticum Aestivum, L.) were evaluated under laboratory and...
Resource Type:: Masters Thesis

Relationships of clay mineralogy to landscape stability in Western Oregon

Creator:: Taskey, Ronald D. (Ronald David), 1944-
Abstract:: Soil erosion by mass wasting is the major problem on forest lands of the Pacific Northwest, The clay fractions of soils from a large number of sites in Oregon's Western Cascades were characterized in order to determine the relationships of various clay materials to mass movements. Each site was either...
Resource Type:: Dissertation

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

The potassium status of Eastern and Central Oregon soils

Creator:: Abuzkhar, Ahmed Ali
Abstract:: The potassium status of selected soils from central and eastern Oregon, that have shown a wide range in response from potassium was investigated. The silt and clay minerals were identified using X-ray crystallography. The potassium extracted by water, NH₄OAc, and HNO₃ was evaluated on the total soil and on the...
Resource Type:: Masters Thesis

Ozone inhibition of transpiration and photosynthesis of two soybean (Glycine max. [L.] Merr.) cultivars

Creator:: Yingjajaval, Suntaree
Resource Type:: Masters Thesis

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

Leaf elongation as a function of soil water potential and photoperiod

Creator:: Hodges, T.
Abstract:: Leaf elongation is a major indicator of plant growth. It is controlled by complex interactions of many factors including light intensity, photoperiod, water availability, atmospheric conditions, and plant water stress. In this study, the response of leaf elongation to length of photoperiod and to plant water stress as indicated by...
Resource Type:: Masters Thesis

Effect of nitrogen fertilization on peppermint oil quality and content

Creator:: Hee, Stephen Michael
Abstract:: Two field experiments were established during the spring of 1970 in an effort to characterize the effects of nitrogen fertilizer and plant maturity on the yield, composition and quality of peppermint (Mentha piperitta var. Mitcham) oil. These experiments were located in central Oregon, near Madras, and in the Willamette Valley,...
Resource Type:: Masters Thesis

Aluminum toxicity in the primary meristem of wheat roots

Creator:: Henning, Stanley John
Abstract:: The progression and consequences of aluminum toxicity were studied microscopically in the root tips of four wheat varieties representing different classes of Al tolerance. The root tips studied were collected from seedlings grown in nutrient solution cultures containing either sublethal or lethal Al treatments which were unique for each variety....
Resource Type:: Dissertation

The time-concentration interaction of Al toxicity in wheat root meristems

Creator:: Rhue, Roy Dean
Abstract:: The time-concentration interaction of Al toxicity in the root meristems of Brevor wheat was studied using the L.D. 50 as a criteria for Al damage. The L.D. 50 represented a precise, well defined degree of biological damage which was easily reproduced under conditions where factors like temperature, pH, nutrient concentration,...
Resource Type:: Dissertation

Land use distributions and changes in the Willamette Valley in relation to soil characteristics

Creator:: Wiens, John Herbert
Abstract:: A study was undertaken in the Willamette Valley, Oregon, to document 1971 land use patterns as well as land use change in a smaller study area in the 16 years prior, and to relate these to soil characteristics. Quantification of these inter-relationships was aided by use of computer tabulation and...
Resource Type:: Dissertation

Some effects of sulfur fertilization on the nutrient value of subclover-grass forage

Creator:: McCarthy, Michael J.
Abstract:: Pastures consisting of mixtures of subclover (Trifolium subterraneum) and grasses have responded to sulfur fertilization on many sites in Douglas County, Oregon. The objectives of this study were to examine specific changes in forage quality which occur as sulfur is applied in excess of the amount required for maximum yield...
Resource Type:: Masters Thesis

The effect of soil acidity and lime placement on root growth and yield of winter wheat and alfalfa

Creator:: Kauffman, Marvin Dean
Abstract:: The application of lime to an acid Nekia soil significantly increased the yield of winter wheat and alfalfa in a field experiment. Crop yields maximized when the lime was partially mixed into the surface four inches of the soil. Thorough mixing of the lime into the surface six inches of...
Resource Type:: Dissertation

Refractory metals processing waste utilization on Dayton silty clay loam soil

Creator:: Polson, Richard Lewis
Abstract:: Waste products from industry have often been disposed in landfills without regard for any beneficial uses of the product in agricultural production. This research was conducted to determine the effect of a refractory metal processing waste product on (a) soil chemical and physical properties, (b) perennial ryegrass forage quality and...
Resource Type:: Masters Thesis

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

Creator:: Phillips, Michael John
Abstract:: To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
Resource Type:: Masters Thesis

Nitrogen and heavy metal distribution in soils utilized as sludge disposal sites

Creator:: Prothero, Gary Lewis
Abstract:: Metropolitan areas today must dispose large volumes of sewage sludge produced during the wastewater treatment process. This research was conducted to study the effect of large applications of municipal sewage sludge on (a) the distribution of N and trace elements (Cd, Cr, Cu, Mn, Ni, Zn) in the soil profile,...
Resource Type:: Masters Thesis

Nitrogen-boron-lime interactions affecting the production of table beets

Creator:: Weber, Michael Sam
Resource Type:: Masters Thesis

Effects of stage of maturity on phosphorus and sulfur critical levels in Trifolium subterraneum L.

Creator:: Drlica, Dianne Marie
Resource Type:: Masters Thesis

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

The status of organic materials in several southern Willamette Valley grassland soils

Creator:: Laurent, Tom Edwin
Resource Type:: Masters Thesis

Cation exchange properties of forest litter as influenced by vegetation type and decomposition

Creator:: Warner, Susan Ann
Abstract:: Decomposition of forest litter is a complex process involving interactions between physical, chemical and biological factors. As litter decomposes it is chemically altered. Cation exchange capacities of litter represent a means of characterizing the number of hydrophilic acid groups. Some kind of soil-root ion exchange mechanisms are utilized by the...
Resource Type:: Masters Thesis

Diagnosis and correction of copper deficiency of small grains in Oregon

Creator:: Kresge, Paul Owen
Abstract:: Field-plot experiments and pot culture techniques were used to investigate reported Cu deficiency in certain Oregon organic soils. Field experiments were established in 1973 and 1974 on an acid peat soil and two alkaline muck soils near Klamath Falls, The effect of rates of from 0 to 45 kg Cu/ha...
Resource Type:: Dissertation

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

Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Creator:: Kowsar, Ahang
Resource Type:: Dissertation

Nitrogen release from granules of sulfur-coated urea

Creator:: Jarrell, Wesley M.
Abstract:: Sulfur-coated urea (SCU) is a slow release nitrogen fertilizer manufactured by the Tennessee Valley Authority. Urea granules are sprayed with molten sulfur, then holes in the sulfur coating are sealed with a layer of wax sealant. The sulfur coatings are mixtures of amorphous and crystalline allotropes of sulfur. Coating thickness...
Resource Type:: Dissertation

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

Subsurface disposal of domestic septic effluent in a haploxeralf soil in Southwestern Oregon

Creator:: Silvernale, Alexandra
Abstract:: Experimental Drainfields: Standard subsurface sewage disposal systems, gravity loaded and 60 cm deep on slopes above 15% did not show signs of effluent surfacing after 14 months of operation. However, subsurface signs of failure were found on both the experimental sites and on older drainfields established in identical soils. Evidence...
Resource Type:: Masters Thesis

Fractionation and some properties of water-dispersible soil organic-mineral particles

Creator:: Spycher, Gody
Resource Type:: Dissertation

Movement of labeled Escherichia coli through western Oregon hillslope soils under conditions of saturated flow

Creator:: Rahe, Terrance M.
Resource Type:: Masters Thesis

Incinerated sewage sludge use as a soil amendment for sweet corn (Zea mays L.)

Creator:: Mellbye, Mark Edward
Abstract:: Field and greenhouse experiments were conducted to determine the suitability of using incinerated sewage sludge ash as a soil amendment for sweet corn production on Willamette silt loam. In 1977, field plots were treated with 0, 11, 22, and 43 mt/ha of ash containing lime, in factorial combination with a...
Resource Type:: Masters Thesis

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

Extraction and plant availability of cadmium and zinc in a Willamette sandy loam soil

Creator:: Halvorson, Gary Alfred
Abstract:: A Willamette sandy shot loam was treated with ZnC1₂, CdC1₂, or sewage sludge to determine the chemical fate of added Cd and Zn in the soil and their influence on the growth of corn and wheat seedlings. Cadmium was added as CdC1₂ at rates of 0, 5, 20, or 80...
Resource Type:: Dissertation

Effect of phosphorus forms and fertilizer rates on mycorrhizal development on containerized seedlings

Creator:: Munson, Kenneth Richard
Resource Type:: Masters Thesis

Morphology, genesis, and classification of soils forming in recent age tephra deposits from Mt. St. Helens volcano

Creator:: Johnson, Mark E.
Abstract:: The morphology, genesis, and classification of soils forming in multiple tephra deposits of recent age from Mt. St. Helens volcano in southwestern Washington Cascade Mountains was studied. Soils which occupied well drained and poorly drained positions on the landscape were characterized according to their morphology and the results of analyses...
Resource Type:: Masters Thesis

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

Creator:: King, Joel Thomas
Resource Type:: Masters Thesis

Diffusion and surface reaction processes of absorption on surfaces of soil particles in unsaturated soils

Creator:: Yingjajaval, Suntaree
Abstract:: At present the adsorption kinetic of ions by soil particles is considered to be a surface reaction. When the transport of solutes in soils is described using the one-dimensional flow equation, it becomes a serious problem that lateral diffusion of ions from the bulk solution towards the soil surfaces is...
Resource Type:: Dissertation

Root symbionts and soil microorganisms associated with actinorrhizal plants

Creator:: Rose, Sharon Lee
Abstract:: Symbiotic associations are established between non-leguminous (actinorrhizal) nitrogen-fixing flowering plants and two categories of microorganisms: mycorrhizal fungi and a filamentous actinomycete. The actinomydete induces nodule formation and produces nitrogenase, the enzyme responsible for the reduction of atmospheric nitrogen to a form available to higher plants. The mycorrhizal fungus is found...
Resource Type:: Dissertation

The fertilizer value of shrimp and crab processing wastes

Creator:: Costa, Robert Edward
Abstract:: The Federal Water Pollution Control Act Amendments of 1972 prohibits the discharge of seafood processing solid wastes into navigable waters after July 1, 1977. Oregon shrimp and crab processors must use other methods of disposal for the 15 to 30 million pounds of solid waste generated annually. The application of...
Resource Type:: Masters Thesis

Nitrogen, phosphorus and particulate matter budgets of five coniferous forest ecosystems in the western Cascades Range, Oregon.

Creator:: Fredriksen, R. L.
Abstract:: Nutrient and particulate matter balances were established for five ecosystems dominated by Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] in the western Cascades, Oregon. Carriers of N and P were particulate matter (dust in precipitation and sediment in streams) and dissolved matter in both precipitation and stream water. The input and outflow...
Resource Type:: Dissertation

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