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Three essays on phosphorus runoff and water quality
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Water pollution caused by nutrients, and the resulting eutrophication, have increased over time. This water pollution is increasingly caused by non-point source pollution, both...
Delineation of critical management areas at plot, field, and watershed scales for claypan soils
(University of Missouri--Columbia, 2010)
and water quality and given rise to non-point source pollutants. The claypan soil region of Missouri has a high runoff potential that increases the possibility of transport of non-point source pollutants to downstream sites. The Agricultural Policy...
Three essays on biofuel policies and aggregate supply curve
(University of Missouri--Columbia, 2022)
The first essay investigates the impacts of Brazil's new biofuel policy, namely RenovaBio. RenovaBio aims to reduce greenhouse gas (GHG) emissions in the transportation sector through expansion of biofuels by requiring ...
Cover crop effects on soil moisture dynamics & thermal properties
(University of Missouri--Columbia, 2021)
properties of a corn (Zea mays L.) cropping system. The study was conducted at the Elsberry Plant Material Center - USDA, Missouri, USA, with 1) no-till cover crop (NC), 2) conventional till no cover crop (CN), and 3) no-till no cover crop (NN) treatments. A...
Influence of entomopathogenic fungi from forest and urban habitats on founding pairs of reticulitermes flavipes (rhinotermitidae)
(University of Missouri--Columbia, 2015)
termite colonies survive fungal invasions. This research focused on founding pairs of primary reproductives when colonies are smallest and there are only two termites. Because most termite colonies invading newer homes in Missouri are started...
Accrual persistence and accrual anomaly
(University of Missouri--Columbia, 2007)
The first essay, "Inter-temporal accrual persistence and accrual anomaly" investigates whether accrual persistence and accrual anomaly vary with the state of economy. Prior accounting research argues that diminishing marginal returns on new...
College students and credit card use : the effect of personal financial knowledge on debt behavior
(University of Missouri--Columbia, 2007)
Analysis of survey data from 6,520 students at a large Midwestern University affirmed that financial knowledge is a significant factor in the credit card decisions of college students, though the relationship between the two does not behave entirely...
An economic analysis of the agricultural development potential for Southern Honduras
(University of Missouri--Columbia, 1975)
for various resources r which would provide guidance for making investment decisions; and (3) to derive policy recommendations for the purpose of agricultural development in Southern Honduras. A survey of 449 randomly selected sample farms, including 686...
Yeast mutants containing elevated methionine
(University of Missouri--Columbia, 1983)
Yeasts are deficient in methionine which restricts the nutritive value of the protein. The objective of this research was to produce a methionine-rich mutant. Mutants of Candida tropical is ATCC 1369, Candida tropica!is ATCC 9968, Candida util...
Seasonality and elevational migration in an Andean bird community
(University of Missouri--Columbia, 2010)
Life history strategies of many birds in the Neotropics remain poorly known. In particular, details on the seasonal movements of individuals and populations within the Neotropics remain largely unknown, including short-distance ...
Development and validation of standardized sampling protocols for assessing freshwater mussel populations in Missouri
(University of Missouri--Columbia, 2017)
step in assessing populations. We surveyed 14 sites in the Meramec River Basin in East-central Missouri to determine the effectiveness of visual sampling methods and to determine the effects of habitat variability on the effectiveness of these methods...
Essays on intergenerational transmission in Korea
(University of Missouri--Columbia, 2021)
This dissertation studies the effects of parents' resources on children's labor market outcomes in Korea. The educational structure in Korea has changed substantially with rapid economic growth over the last several decades. ...