Index Catalog // ScholarsArchive@OSU

Diffusion of oxygen and carbon dioxide through soil with temperature and water content effects on sink/source strength

Creator:: Ying, Ouyang
Abstract:: Gaseous diffusion equations which describe the diffusion of oxygen and carbon dioxide through soil have been studied by several investigators. However, these efforts seldom considered gaseous diffusion through soil together with the effects of soil environmental factors such as soil temperature and soil water content on sink or source strength....
Resource Type:: Masters Thesis
Full Text:: Strength 7 Redacted for Privacy Abstract approved: / Larry Boersma Gaseous diffusion equations which

Germination and emergence of corn (Zea mays, L) as a function of soil physical parameters

Creator:: Sanchez, Ramon M.
Abstract:: Rates of germination and emergence of corn were measured as influenced by soil physical parameters using blotter paper and a sandy loam soil as growth media. The corn seeds used were a hybrid of Funk's (DJ7xLH93). Experimental conditions were soil temperature of 20°C, 25°C, 30°C, and 35°C, soil water potential...
Resource Type:: Masters Thesis
Full Text:: ,4:. Larry Boersma Rates of germination and emergence of corn were measured as influenced by soil

Effects of petroleum mulch on soil water content and soil temperature

Creator:: Kowsar, Ahang
Abstract:: Petroleum mulch applied on the soil surface over a row of planted seeds promotes a more rapid and a more uniform germination of seeds, enhances elongation of seedlings and in some cases increases the yield of the crop. The beneficial effects of petroleum mulch have usually been attributed to increased...
Resource Type:: Masters Thesis
Full Text:: WATER CONTENT AND SOIL TEMPERATURE Abstract approved: Larry Boersma Petroleum mulch applied on

Nitrogen uptake by wheat (Triticum aestivum VILL., Host) as a function of root temperature and plant water stress

Creator:: Sepaskhah, Ali Reza
Abstract:: The effect of soil temperature and plant water stress on nitrogen uptake, growth rate and transpiration rate of wheat (Triticum aestivum VILL. , Host) seedlings was studied. A special apparatus for the control of plant water stress and root temperature was used. Leaf area was measured by the air flow...
Resource Type:: Masters Thesis
Full Text:: for Ali Reza Sepaskhah ACKNOWLEDGMENTS The author wishes to acknowledge deeply Dr. Larry Boersma

Infiltration of water and its effects on soil erosion : a computational analysis pertaining to central Tunisia

Creator:: Tobbi, Belgacem
Abstract:: The purpose of this study was to use computer analysis of soil and rainfall data to predict the possible occurrence of soil erosion in Central Tunisia. Analysis was done with the program OR-NATURE (M.Ungs et al, 1985) . Central Tunisia was subdivided into northern, central, and southern subzones. Data about...
Resource Type:: Masters Thesis
Full Text:: Tunisia. Redacted for Privacy Abstract approved by: D,,{`. Larry Boersma The purpose of this study was

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
Full Text:: Abstract approved: Larry Bfersma Leaf elongation is a major indicator of plant growth. It is controlled

Hydrophobicity of Cindery Typic Cryorthents

Creator:: Evans, Lynn B.
Abstract:: The hydrophobicity of soils of the Deschutes National Forest was studied. The soils are Cindery Typic Cryorthents, formed in cinders and ash from Mt. Mazama. Ponderosa pine is the dominant overstory vegetation. Of particular interest was the effect of prescribed burning on hydrophobicity. Fire has been shown to cause a...
Resource Type:: Masters Thesis
Full Text:: Privacy Larry /L. Boersma The hydrophobicity of soils of the Deschutes National Forest was studied. The

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

Creator:: Yingjajaval, Suntaree
Resource Type:: Masters Thesis
Full Text:: know. I should especially like to thank Dr. Larry Boersma for his interest, guidance, and inspiration

Soil physical conditions and nitrogen fixation of soybeans (Glycine max. Merrill, var. Chippewa 64)

Creator:: Kuo, Tsungmin
Abstract:: The effect of soil water suction and soil temperature on rates of transpiration, photosynthesis, respiration and nitrogen fixation of soybean (Glycine max. Merrill, var. Chippewa 64) seedlings was studied. A special apparatus was developed in which the soil water suction of several cells with soybeans growing in them could be...
Resource Type:: Masters Thesis
Full Text:: his deep appreciation to Dr. Larry Boersma for the great help, advice, guidance and encourage- ment

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
Full Text:: ground surface U O topsoil V ,(2) L) o OC)c:5.0 D `-'60c=1 cYCD 1.9 to 6.3 cm washed gravel 30 cm

ScholarsArchive@OSU

Diffusion of oxygen and carbon dioxide through soil with temperature and water content effects on sink/source strength

Germination and emergence of corn (Zea mays, L) as a function of soil physical parameters

Effects of petroleum mulch on soil water content and soil temperature

Nitrogen uptake by wheat (Triticum aestivum VILL., Host) as a function of root temperature and plant water stress

Infiltration of water and its effects on soil erosion : a computational analysis pertaining to central Tunisia

Leaf elongation as a function of soil water potential and photoperiod

Hydrophobicity of Cindery Typic Cryorthents

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

Soil physical conditions and nitrogen fixation of soybeans (Glycine max. Merrill, var. Chippewa 64)

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

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search