Index Catalog // ScholarsArchive@OSU

Creator:: Akratanakul, Wanee
Abstract:: A growth chamber experiment was conducted to determine the rate of S-urea mineralization and effect of S-urea on the yield of ryegrass (Lolium multiflorum) grown in Steiwer soil as influenced by soil temperature (60, 75, and 90° F) and soil moisture stress (0. 10, 0.35, and 2.50 bars). Plant yield,...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Dr. M. D. Dawson A growth chamber experiment was conducted to determine

Creator:: Su, Charles., Brooks, Royal H., and United States. Office of Water Research and Technology
Abstract:: The work reported herein constitutes a final report for a project funded by the U.S. Department of Interior, Office of Water Resources and Technology, Grant No. 14-31-0001-4218.
Resource Type:: Technical Report
Full Text:: experimenta l data obtained from Corey (1959), where th e corresponding retention data and curve ar e shown in

Creator:: Al-Jibury, Falih Khidir
Resource Type:: Dissertation
Full Text:: clay content of soils. Corey (2, pp. 7-lO) has measured the simultaneous flow of air and water

Creator:: Stewart, Ryan D.
Abstract:: Vertisols and other vertic-intergrade soils are found all over the globe, including many agricultural and urban areas. These soils are characterized by their cyclical shrinking and swelling behaviors, where bulk density and porosity distribution both vary as functions of time and/or soil moisture. In turn, alterations in physical soil parameters...
Resource Type:: Dissertation
Full Text:: . ..................................................................................................29 2.3 The effect of pore size distribution (m) on wetting front potential and sorptivity

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:: Typed by Lynn J. O'Hare and Gloria M. Foster for David McAuliffe ACKNOWLEDGMENTS The time spent and

Creator:: Nilsson, Colin Wayne
Abstract:: Under adverse soil moisture conditions a critical water stress or water potential develops in the plant and productivity is reduced, or in extreme cases, terminated. Research to determine the soil moisture status for maximum production of specific crops has been conducted for decades. The results have done much to increase...
Resource Type:: Masters Thesis
Full Text:: Diffusion Pressure Deficit (DPD), a term widely used in plant physiology (Corey, Slatyer, and Kemper, 1967

Creator:: Baker, Josiah D.
Abstract:: This study presents the theoretical background necessary to model the bearing capacity of shallow and deep foundations in partially saturated soils. The conventional bearing capacity equations for shallow and deep foundations and the 𝛽-method for deep foundation side resistance have been modified to include the effects of matric suction and...
Resource Type:: Masters Thesis
Full Text:: . ..............................................41 Figure 3-3. Failure surface corresponding to ϕ' = 20°, B = 2 m, and D = 0.5 m. ........42

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:: Injection of Four Liters of 0.1 M KBr 5.32. Summary of the Movement of I- from the C Horizon Line 108

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