Thesis (Ph. D.) -- University of Adelaide, Dept. of Soil and Water, 2000. / Includes bibliographical references (leaves 173-207). Also available on the Internet.

Bibliography: leaves 173-207 / xxiv, 211 leaves : ill., map ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Soil and Water, 2000

Improving productivity of sodic soils has become a concern in North Dakota because of the desire for more land for producing crops. Field and incubation studies were conducted to determine the impacts of different amendments (flue-gas desulfurization gypsum, sugar beet processing by-product lime, and langbeinite) on the chemical and biological properties of two sodic soils. The field study evaluated the amendment effects on the chemical conditions of the soil and the impact on alfalfa yield and quality. Differences were not observed in percent sodium (%Na) in the first 17 months and alfalfa yield was not impacted by the treatments except for the high rate of langbeinite. The incubation study investigated the effects of amendments on both the chemical and biological properties of the soil. Spent lime increased the cumulative respiration but was not impacted by gypsum or langbeinite. Labile carbon (C) was negatively correlated with %Na and electrical conductivity (EC). / North Dakota Soybean Council

Thesis (M.Ag.Sc.)--University of Adelaide, Dept. of Soil and Water, 2002. / Includes bibliographical references (leaves 78-86).

Bibliography: leaves 147-170. Aims to determine the influence of sodicity on the nature and decomposition of organic matter; and the influence of organic matter and its components on the structural stability of sodic soils.

Bibliography: leaves 147-170. / x, 170 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Aims to determine the influence of sodicity on the nature and decomposition of organic matter; and the influence of organic matter and its components on the structural stability of sodic soils. / Thesis (Ph.D.)--University of Adelaide, Dept. of Soil Science, 1998?

Thesis (Ph. D.)--University of Adelaide, Dept. of Soil Science, 1998? / Includes bibliographical references (leaves 147-170).

Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on June 16, 2008). Includes bibliographical references (p. 60-62).

Thesis (Ph. D.)--University of Adelaide, Dept. of Soil Science, 1996. / Copies of author's previously published articles in pocket inside back cover. Includes bibliographical references (leaves 147-160).

Thesis (M. Ag. Sc.)--University of Adelaide, Dept. of Soil Science, 1997. / Includes bibliographical references (leaves 159-177).