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Organic soil amendements (sic) : impacts on snap bean common root rot and soil qualityCespedes Leon, Maria Cecilia 31 May 2002 (has links)
Common root rot is a major disease of commercially grown snap bean
(Phaseolus vulgaris L.) on the irrigated sandy soils of central Wisconsin. The
objective of this study was to determine the relationships between soil properties
and suppressiveness to common root rot of snap bean (causal agent Aphanomyces
euteiches) in soils. The soils had been annually amended for three years in a field
trial on a Plainfield sandy loam in Hancock, WI. Soils were amended each year
from 1998 to 2001 with three rates of fresh paper-mill residuals (0, 22 or 33 dry Mg
ha�����) or composted paper-mill residuals (0, 38 or 76 dry Mg ha�����). Soil was
removed from each treatment in April (one year after last amendment) and brought
to the laboratory. This was repeated with a field soil sample taken in September,
2001. The soils from the two samplings were incubated at room temperature and
periodically assayed (days 9, 44, 84, 106, 137, 225 and 270 for April sampling)
(days 13, 88 and 174 for September sampling) for suppressiveness of snap bean
root rot (0 to 4 where 0=healthy and 4=dead plant). The same days, incubated
soils were characterized for ��-glucosidase, arylsulfatase and fluorescein diacetate
activities; microbial biomass C (by chloroform fumigation); water stable
aggregation (WSA) and total C. In the first incubation, there were large differences
between field amendment treatments in terms of snap bean root rot incidence. The
disease was suppressed by both fresh and composted amendments, but compost
was most suppressive at high compost rates with disease incidence <40% which are
considered healthy plants that can reach full yield potential. In the second
incubation, disease severity difference among treatments were similar to the first
incubation. This would indicate the suppression was induced prior to initiation of
this experiment.
Disease severity of bean plants grown in unamended field soil was high but
in amended soils tended to decrease in intensity over time. Root rot severity was
negatively related to ��-glucosidase, and microbial biomass at the beginning and the
end of the first incubation period, respectively. FDA hydrolysis was not correlated
with disease severity and WSA moderately correlated with disease. The best
indicator of disease severity was arylsulfatase which was significantly and
negatively correlated with disease severity in 4 of 5 sampling periods. / Graduation date: 2003
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Microbial mercury resistance and potential methylation rates in the Upper Wisconsin River /Callister, Steven M. January 1983 (has links)
Thesis (M.S.)--University of Wisconsin -- La Crosse, 1983. / Includes bibliographical references (leaves 99-108).
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Social action and women the experience of Lizzie Black Kander.Waligorski, Ann Shirley, January 1970 (has links)
Thesis (M.A.)--University of Wisconsin--Madison, 1970. / Title from title screen (viewed Feb. 21, 2007). Includes bibliographical references. Online version of the print original.
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The Wisconsin temperance crusade to 1919Weisensel, Peter Roy, January 1965 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1965. / Title from title screen (viewed Mar. 21, 2007). Bibliographical essay: l. 182-188. Online version of the print original.
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Vegetational change on the Greene Prairie in relation to soil characteristicsAnderson, Mary Rebecca, January 1968 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1968. / Title from title screen (viewed Mar. 27, 2007). Includes bibliographical references. Online version of the print original.
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The use of the catalogue in a university libraryBrown, Emily Klueter. January 1949 (has links)
Thesis (M.A.)--University of Chicago. / Includes bibliographical references.
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Cost analysis of the University of Wisconsin-Stout unclassified recruitment and selection processLeCompte, Angela D. January 2003 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 2003. / Includes bibliographical references.
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The development of a process and transistion [sic] plan from classroom-based training to distance learning for the Wisconsin Army National GuardLegwold, Scott D. January 1998 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 1998. / Includes bibliographical references.
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The University of Wisconsin's mental health services and perceptions of Asian-Indian studentsMcRaith, Michael J. January 2009 (has links) (PDF)
Thesis PlanB (M.S.)--University of Wisconsin--Stout, 2009. / Includes bibliographical references.
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Valuation and rate-making the conflicting theories of the Wisconsin railroad commission, 1905-1917, with a chapter on the uncertainty of the United States Supreme court decisions, and a concluding chapter on the need of a revised principle of utility valuation,Hale, Robert Lee, January 1918 (has links)
Thesis (Ph. D.)--Columbia University, 1918. / Vita. Published also as Studies in history, economics and public law, ed. by the Faculty of political science of Columbia university, vol. LXXX, no. 1, whole no. 185.
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