Index Catalog // ScholarsArchive@OSU

Creator:: Baloch, Dost M.
Abstract:: The assessment of optimum nitrogen (N) fertilizer need for winter wheat (Triticum aestivum L.) is important for economic and environmental sustainability. A comprehensive understanding of fertilizer N requirement depends on estimation of the quantity of N needed by the crop versus that supplied by soil. The objectives of this study...
Resource Type:: Dissertation
Full Text:: . Christensen and Dr. John Hart for their availability, interest and incredible guidance. I am also thankful

Creator:: Wanjagi, Francis Ndung'u
Abstract:: In a series of greenhouse experiments, isolates representing serotypically distinct subpopulations of Rhizobium leguminosarum bv. trifolii recovered from root nodules of field-grown subclover Trifolium subterraneum cv. "Nangeela"), were evaluated for their symbiotic effectiveness potential, their effect on regrowth potential of subclover, and for their competitive abilities to form nodules. Isolates...
Resource Type:: Masters Thesis
Full Text:: compilation of this thesis. Thanks also to Drs. Neil Christensen, John Rohovec, and Barry Sherr for

Creator:: Nartea, Theresa J.
Resource Type:: Masters Thesis
Full Text:: committee, Dr. Neil Christensen (Soil Science); Dr. John Bolte (Bioresource Engineering) and Dr. Phil

Creator:: Qureshi, Maqsood Hassan
Resource Type:: Masters Thesis
Full Text:: committee members Dr. Russel S. Karrow, Dr. John M. Hart and Dr. Dunham B. Daniel for their help, precious

Creator:: Costello, Ryan C.
Abstract:: Highbush blueberry (Vaccinium corymbosum L.) is adapted to soils with high organic matter and acidic pH. Composts provide organic matter and nutrients for growing blueberry in mineral soils, but many composts are high in pH and soluble salts. Acidification with elemental sulfur (S°) can remedy high pH, but the process...
Resource Type:: Masters Thesis
Full Text:: .) Abstract approved: Dan M. Sullivan Bernadine C. Strik

Creator:: Elnaggar, Abdelhamid A.
Abstract:: Conventional soil maps represent a valuable source of information about soil characteristics, however they are subjective, very expensive, and time-consuming to prepare. Also, they do not include explicit information about the conceptual mental model used in developing them nor information about their accuracy, in addition to the error associated with...
Resource Type:: Dissertation
Full Text:: my committee members Dr. Herbert Huddleston, Dr. John Baham, Dr. Jon Kimerling and Dr. James

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