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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...
2013 Midwest Vegetable Production Guide for Commercial Growers (2012)
(University of Missouri--Columbia. Extension Division, 2012)
This comprehensive guide, revised annually, gives a wealth of information on how to protect your vegetable crops from insect and disease pests. A large pesticide application section is included with important safety and production information...
Integrating cover crops into crop rotations in upstate Missouri
(University of Missouri--Columbia, 2018)
"There is an increasing emphasis on management strategies such as reduced tillage, use of cover crops, and implementation of conservation practices (i.e. terraces, no-till, and cropping systems) in Missouri cropping systems. By combining best...
A multi-configuration evaluation of the soil and water assessment tool (SWAT) in a mixed land use watershed in the central U.S.A.
(University of Missouri--Columbia, 2011)
Distributed watershed hydrologic/water quality (H/WQ) models are ubiquitous tools for watershed management. Despite advancements, there remain impediments for end-users. This study presents a practical framework for use ...
Soil surface-seal measurement using high-resolution x-ray computed tomography (HRCT)
(University of Missouri--Columbia, 2006)
Rainfall on bare soil breaks soil aggregates, detaching particles, plugging pores and decreasing porosity in the top few mm of soil. This reduces hydraulic conductivity and increases runoff through a process known as surface ...
Variability of soil hydraulic properties and estimation of plant-available water on claypan-soil landscapes
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Soil hydraulic properties and plant-available water (PAW) capacity are critical properties in evaluating land management and soil productivity. This study investigated...
Understanding students' technology appropriation and learning perceptions in online learning environments
(University of Missouri--Columbia, 2005)
university to learn knowledge and skills by doing. Instructional materials and supports were delivered through a network-based learning system as well as other communication tools. Data collection included self-report questionnaires and computer...
Modeling of delayed fluorescence from photosystem II and applications in assessment of drought and chemical stresses
(University of Missouri--Columbia, 2009)
Photosynthesis is not only vital for plant growth and survival but also indicative of plant-environment interactions. This research was designed to analyze photoelectron kinetics and its dependence on environmental factors. ...
A series of in vitro studies investigating the role of lactoferrin in calf innate immunity
(University of Missouri--Columbia, 2006)
Neonatal calf mortality rates continue to impact the economic sustainability of the United States cattle industry. Based on data generated from the National Animal Health Monitoring System survey in 2001, 8.9 % of dairy ...
Impact of social networks on well-being : evidence from Latino immigrants in non-urban Missouri communities
(University of Missouri--Columbia, 2010)
, and linking have positive impacts on Latino immigrant's well-being in rural areas of Missouri. It is hypothesized further that these social resources are conditioned by acculturation and the context of reception, which might reduce or enhance the impact...
Automatic extraction of man-made objects from high-resolution satellite imagery by information fusion
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Recently available high-resolution commercial satellite imagery provides an important new data source for remote sensing applications. Automated feature extraction (AFE...
Development and application of vegetative buffer width modeling using geographic information systems
(University of Missouri--Columbia, 2009)
of performance could potentially require wider or narrower buffer widths in order to meet certain stormwater management criteria. This method was successfully demonstrated within the LaBarque Creek watershed located southwest of St. Louis, Missouri for three...
The impact analysis of structural change in Korean agriculture with respect to the Korean-United States free trade agreement : dynamic simultaneous equation model approach
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The main objective of this study is the analysis of the impacts of the Korean-United States Free Trade Agreement. On April 2, 2007, Korea and the United States concluded a...
Assemblage structure and shallow-water habitat use by small-bodied fishes at lower Missouri River sandbars
(University of Missouri--Columbia, 2007)
Populations of many native big-river fishes have declined since channelization and flow regulation contributed to losses of shallow-water habitat (SWH) on lower Missouri River (LMOR). Existing point and wing-dike sandbars represent a potentially...
Photosynthesis and heat tolerance of soybean
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The Photochemical Reflectance Index (PRI) is determined from canopy spectral reflectance measurements and can provide important information about photosynthesis. The PRI can...
An evaluation of pre- and post-timber harvest water quality in low-order streams in the Missouri Ozarks
(University of Missouri--Columbia, 2009)
Missouri Department of Conservation's (MDC) best management practices (BMPs) for Regenerative Oak Clear Cutting (ROCC) practice was evaluated on effectiveness to preserve downstream water quality. Fifteen sites, located on MDC lands in Shannon...
Fluctuating asymmetry as a measure of developmental instability in Arikara bioarchaeological assemblages
(University of Missouri--Columbia, 2018)
from skeletal assemblages excavated from numerous Arikara archaeological sites along the Missouri River in South Dakota. These assemblages were selected for this study because they represent a single, culturally and genetically affiliated population...
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...
Middle and late woodland period cultural transmission, residential mobility, and aggregation in the deep South
(University of Missouri--Columbia, 2009)
This research attempts to reconstruct the extent of prehistoric human interaction within the lower Chattahoochee-Apalachicola River valley and neighboring Gulf Coast for the period spanning 200 B.C. to A.D. 1000. Using ...
Reflux, aspiration and respiratory disease in dogs : clinical consideration and advances in aerodigestive diagnostics
(University of Missouri--Columbia, 2019)
The aspiration of gastric contents into the respiratory tract has been associated with the development and progression of multiple respiratory diseases in humans. In veterinary medicine the term "aspiration" is considered ...