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Now showing items 41-60 of 443
Alternative tillage and nitrogen management options to increase crop production and reduce nitrous oxide emissions from claypan soils
(University of Missouri--Columbia, 2010)
The Central Claypan Region covers an area of 10 million acres of claypan or claypan-like soil in Missouri, Oklahoma, Kansas, Iowa, and Illinois. Agricultural production on claypan soil can have lower yield and a greater impact on the environment...
A multi-scale investigation of ecologically relevant effects of agricultural runoff on amphibians
(University of Missouri--Columbia, 2008)
Modification of landscapes for agricultural production can introduce agrochemicals into surface waters and degrade aquatic habitats used by many amphibians for breeding and larval development. Although many ecotoxicological studies have shown...
Minimum milk requirement for calf raising
(University of Missouri--Columbia, 1919)
The dairyman is keenly interested in knowing how he can raise his calves in an economical and successful manner. This thesis reports the results of several experiments in early weaning and minimum use of milk for calf rearing, which constitute part...
Multiscale Study of the Interactions between Climate, Land Use, and Agricultural Productivity in Western Sahel: A Case Study of Chad
(2014-09-30)
coordinates of that area are: North 14.403, West 10.815, East 24.219, and South 7.328. Agricultural productivity country summary data for Chad was obtained from the Food and Agriculture Organization (FAO) of the United Nations. Other data sets, including...
Influence of characters of ear and kernel upon the germination of maize
(University of Missouri--Columbia, 1912)
of the ear and kernel which have a marked influence upon the yield. This is so universal that we have score cards which set forth the ideal type of ear and give certain values to the different characters. In general, the score cards are alike and all agree...
Nutrients and chlorophyll dynamics in Fort Cobb Reservoir
(University of Missouri--Columbia, 2007)
Trade barriers to grain cooperatives in exporting
(University of Missouri--Columbia, 1986)
The objective of this study was to determine if there were any barriers to grain cooperatives in exporting. Barriers are obstacles associated with the structure of the market. Data compiled to determine if any barriers ...
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...
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...
Data-Driven Modeling of the Lake Chad Basin Hydrologic Systems
(University of Missouri -- Kansas City, 2019)
The drying of the Lake, located in Central Africa, is one example of a water crisis,
which requires more research and studies. The lake has been progressively shrinking since the
1960s due to climate change and anthropogenic ...
Electromagnetic effects on soybeans
(University of Missouri--Columbia, 2007)
on Magellan for repeat experiments were inconclusive at best. Germination for case studies with two hundred samples showed marked improvement but the statistical significance for much larger sample (1000 seeds) decreased. All the experiments were conducted...
An assessment of the light and nutrient regimes constraining phytoplankton dynamics in Missouri reservoirs
(University of Missouri--Columbia, 2021)
Worldwide, nutrient pollution, or eutrophication, is one of the most pervasive environmental issues threatening water quality. Anthropogenic influences, primarily urbanization and agriculture, have drastically increased inputs of bioavailable...
Beyond the edge : riparian habitat use and forest management effects on stream salamanders in the southern Appalachian mountains
(University of Missouri--Columbia, 2007)
While there are many types of habitat loss and degradation (e.g., agriculture, land development), many studies have focused on the impacts of logging on wildlife populations and on ecosystem processes. Little information, however, exists...
Winter rations for dairy heifers
(University of Missouri--Columbia, 1917)
The special object of these experiments is to compare the efficiency and economy of rations which are conducive to rapid growth with rations of such character as to admit of but limited growth....
Milk substitutes, powdered skimmilk for raising calves
(University of Missouri--Columbia, 1917)
Text from introduction: This thesis is a discussion, from the standpoint of our present knowledge of the fundamental principles of animal nutrition, of the possibility of raising calves on "milk substitutes". The experimental ...
The minimum protein requirement for growing dairy heifers
(University of Missouri--Columbia, 1918)
with such large farm animals as dairy heifers. Consequently the results cannot be entirely satisfactory from a scientific standpoint. Yet if such experiments are properly controlled they should give results of value both scientifically and practically."...
Scale and utilization economics in feeding cattle under three feeding systems : a feasibility study
(University of Missouri--Columbia, 1967)
of the number of cattle fed dropped from 60 percent to 47 percent. While at the same time the proportion accounted for by the southern plains and the western states advanced from 18 percent to 33 percent. 3. A shift in the structure in the industry from...
Assessment of Seismic Hazards along the Northern Gulf of Aqaba
(2014-09-26)
zones, and several transverse faults. The integration of offshore and onshore data confirm the extension of these faults along both sides of the Gulf of Aqaba. A 3D model of GPR data at one site in Aqaba indicates that the NW-trending transverse faults...
Bayesian spatial data analysis with application to the Missouri Ozark forest ecosystem project
(University of Missouri--Columbia, 2006)
posterior distribution. We then present a Bayesian spatial methodology for analyzing the site index data from the Missouri Ozark Forest Ecosystem Project (MOFEP). Our results show that aspect class and soil depth are both significant while land type...
A comparison of grant-funded outdoor classrooms in rural and nonrural Missouri schools
(University of Missouri--Columbia, 2009)
by education consultants from the Missouri Department of Conservation that corresponded to the visited sites. Qualitative data was obtained from each of the data sources in order to determine 1) what features had been funded, 2) level of implementation, and 3...