Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 69 for “"Corn Belt"”.
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Energy in the Corn Belt: Is Maize Production Sustainable?
… has transformed agricultural production. Corn production methods changed from a sustainable, nutrient recycling production system to one reliant on imported fossil energy inputs. Located in the Western Corn Belt, Union County, South Dakota was chosen as the study area. Changes in …
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Corn planting strategies in the United States Corn Belt
In Illinois, corn (Zea mays L.) producers aim to start planting operations in mid-April. Early planting allows for the use of longer-season corn varieties, which tend to yield more than shorter-season varieties. However, constraints to early planting in the U.S. Corn Belt include excessive soil …
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Nutrient cycles across topography in drainage-impaired Corn Belt soils
… gas emissions and nutrient leaching from Corn Belt soils pose a threat to both local and global human and environmental health. Topographic depressions in the US Corn Belt have documented impacts on hydrology, crop production, soil characteristics, and soil microbial communities. These …
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Regenerative agriculture and soil carbon storage in the Upper Corn Belt
… study of commercial farms in the Upper Corn Belt region, I evaluated how regenerative management affects SOC storage, erosion processes, and microbial community structure. Factors such as topography, time since adoption of regenerative practices, climate, and soil texture significantly …
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A pretension of place: The industrialization of corn belt agriculture, 1940-1965
1 PDF file (vi, 193 pages)
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From 'Hicks' to High Tech: Performative Use in the American Corn Belt
This study traces the history of how farmers have used technologies from the eighteenth century to the present to form identities, not simply as ways of making greater economic profits. Using technologies becomes a way to 'perform' a person's sense of him or herself. This insight serves historians …
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A hydroclimatic assessment of the U.S. corn belt across spatial and temporal scales
… spatial and temporal scales of the U.S. Corn Belt hydroclimate and includes analysis of large- and local-scale hydroclimatic feedbacks. Large-scale hydroclimate research in this assessment investigates how general circulation patterns and teleconnections, specifically the El Ni?o-Southern …
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Agricultural revolutions in America’s heartland: the corn belt and the making of American capitalism
… This research examines how cheap food from the Corn Belt was produced from 1840s to the late twentieth century. It investigates how the interrelationships between family farming, proletarianization-housewifization, and national and world markets configured and reconfigured. Utilizing a …
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Location of a System of Storage-Distribution Terminals for Agricultural Ammonia in the Corn Belt
Made available in DSpace on 2014-12-10T23:41:31Z (GMT). No. of bitstreams: 1 7317532.pdf: 6935232 bytes, checksum: 2dd6f87e4058fb6fbae1e06133627085 (MD5) Previous issue date: 1973
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Multi-temporal Remote Sensing of Changing Agricultural Land Uses within the Midwestern Corn Belt, 2001-2015
… of this study indicated that increases in corn production in response to US biofuel policies had been achieved mainly by altering crop rotation. This study also examined spatial relationships between cultivated fields and crop rotation practices with respect to underlying soils and terrain. …
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Investigation of climate variability and climate change impacts on corn yield in the Eastern Corn Belt, USA
… demand for both food and biofuels requires more corn production at global scale. However, current corn yield is not able to meet bio-ethanol demand without jeopardizing food security or intensifying and expanding corn cultivation. An alternative solution is to utilize cellulose and hemi-cellulose …
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Financial Structure of Corn -Belt Cow -Calf Enterprises: The Impact of Alliance Participation on Producer Financial Position
… in an alliance affects the financial position of Corn-belt Cow-Calf producers. The study finds the risk-return theory to be intact as income variability rises with the added expected returns of alliance participation. Additionally, the results suggest that the improved expected return has a strong …
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Using Remote Sensing and Machine Learning to Improve County-Level Crop Yield Prediction in the Us Corn Belt
… regression (GWRFR) model to predict county-level corn yield, with a specific focus on addressing spatial heterogeneity. The second manuscript explores the transferability of deep learning models in crop yield prediction. The transfer learning framework used in this study can help in scenarios …
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Solar-induced chlorophyll fluorescence (SIF) as a proxy of canopy photosynthesis for crops in the U.S. corn belt
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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A diallel study of flowering and of ear components of yield in Corn Belt maize and their interactions with population density
A diallel study of American Corn Belt maize (Zea mays L.) was conducted at Holland, Virginia in 1981 and 1982. All possible crosses of twelve inbred parents (A619, A632, B73, H60, H93, H96, Mo17, Oh7B, Pa91, Val7, Va.79:419, Va85) were planted in three replications with population density …
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What Stages In The Phenology Of Corn Are The Most Correlated With Rainfed Corn Yields In The Corn Belt Using Remote Sensing?
… Index (TCI), were assessed for state level corn yield correlation in the Corn Belt region of the United States for the years of 2007-2013. VCI and TCI were 16-km pixels which are derived from the Advanced Very High Resolution Radiometer (AVHRR). Corn pixels were identified by downloading …
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Quantifying plant physiological responses to drought and high-temperature stress in the Midwest U.S.: Through scaling from proximal hyperspectral sensing to satellite monitoring
The U.S. Corn Belt is the most productive agricultural region in the world and quantifying and predicting its crop productivity is critical to achieve and maintain global food security. To quantify crop productivity reliably, understanding crop responses to climate variability is a prerequisite, …
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Application of multi-state financial data for use with the USDA Agricultural Conservation Planning Framework
… been an increasing concern across much of the US Corn Belt region, specifically with regards to excess nutrient pollution. Agriculturally dominated landscapes are one of the major contributors to impairments in waterways at both local and regional scales. As Iowa and other US Corn Belt states …
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