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Filtering by: Creator Jackson, T. L. Remove constraint Creator: Jackson, T. L. Degree Level Master's Remove constraint Degree Level: Master's

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  • Growth rate and phosphorus uptake of wheat (Triticum aestivum VILL., Host) as a function of soil water suction and soil temperature

    Creator:
    Fazilat, Mohammad
    Abstract:
    The effect of soil temperature and soil water suction on the rate of phosphorus uptake and growth rate of wheat (Triticum aestivum VILL. , Host) was studied. Plants were grown in perlite slabs separated from an osmotic solution by a semi-permeable membrane. Measurements were made at temperatures of 10.0, 18.3,...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENTS Sincere appreciation is extended to Dr. T. L. Jackson, chair- man of my graduate committee, for

  • Availability of phosphorus in central Oregon soils in comparison with selected Oregon soils

    Creator:
    Araos, Jose Fernando
    Abstract:
    The objectives of this study were to evaluate and compare the availability of native and applied P in Central Oregon pumice soils with that in Willamette valley soils and calcareous soils from Eastern Oregon. The experimental work to meet these objectives included laboratory and greenhouse studies. The removal of P...
    Resource Type:
    Masters Thesis
    Full Text:
    . For any group, some soils with high 1 Jackson, T. L. Professor of soils, Oregon State University

  • 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
    Full Text:
    privacy Abstract approved: T. L. Jackson Experiments were established on a Warden soil on Lower Klamath

  • 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
    Full Text:
    . thesis. Corvallis, Oregon State University. 56 numb. leaves. Jackson, T. L. 1970. Unpublished report on

  • Liming requirement of selected Willamette Valley soils

    Creator:
    Peterson, Paul William
    Abstract:
    There are two major problems associated with soil acidity and lime response investigations: A. Determining how much lime (100% "available" CaCO₃ equivalent) is required to raise a soil pH (or degree of acidity) from its existing level to a specified level - presumably where need for lime is eliminated. B....
    Resource Type:
    Masters Thesis
    Full Text:
    equipment; And, finally, the writer is deeply indebted to Dr. T. L. Jackson for his advice, encouragement

  • 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
    Full Text:
    . T. L. Jackson throughout this research and in the preparation of this thesis manuscript. Similarly

  • 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:
    approved: T. L. ,f( son The purpose of this study was to evaluate differences between winter wheat

  • How Federal Employees Manage the Challenge of Implementing the Endangered Species Act

    Creator:
    Jackson, Elizabeth R.
    Abstract:
    The Endangered Species Act (ESA) grants legal standing for any individual or party willing to challenge a species status finding in court. As a result, the legislation has become a controversial, but powerful tool leveraged in political battles and legal disputes that go far beyond the narrow confines of conservation...
    Resource Type:
    Capstone Project

  • Headwater

    Creator:
    Martens, Jacob L.
    Abstract:
    These essays are an attempt to rebuild memories that explore the nature of work and family. They explore how work knocks against the joints of the body and against the joints between family members, and, as time passes, how the next generation inherits the family line of work only to...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Jacob L Martens for the degree of

  • Inside, Outside : Light and Dark

    Creator:
    Knotts, L. William
    Abstract:
    In a story of his life Les reflects on what he has gained and what he has lost while seeking success in the moving and shifting of military and academic life through homes and schools all over the United States. He describes himself as between races, languages, and cultures.
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS OF L. William Knotts for the degree of Master of Arts in Interdisciplinary Studies, in the co