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 1681 for “"harvest"”.
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What is the harvest? :
Thesis (M.L.)--Illinois Industrial University, 1875.
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Fall harvest management of alfalfa
Alfalfa (Medicago sativa L.) harvest schedules are often interrupted by rainfall, unfavorable environmental conditions for growth, and unfavorable weather for hay curing. Interruptions in alfalfa harvest schedules can delay the final harvest until dates considered critical to winter survival. …
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A Respite from the Harvest
In the United States, migrant farm workers are often the lowest paid workers in a multi-billion dollar agricultural industry, and are also often provided substandard housing which lacks the space and basic necessities to live in dignity and hope. After a few years of hard labor and sacrifices, some …
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Development of Sustainable Harvest Strategies for Cellulose-Based Biofuels: Harvest Effects on Game Bird Production
… investigated the possible effects of biomass harvest on nesting game birds. Specific objectives of this study in southeastern South Dakota included: (1) quantifying nest success to determine if haying treatments have an impact, (2) determining if haying treatments affect nesting density, (3) …
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Productivity and quality of tall fescue and switchgrass under two harvest managements and different harvest intensities
… and switchgrass as influenced by different harvest managements. Switchgrass and tall fescue were studied on a fine-loamy, mixed, mesic Ultic Hapludalf of the Duffield soil series at Blacksburg, VA during 1987 and 1988. Normal harvest management included harvests taken from the first growth …
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Evaluating Economic Impacts of Switchgrass Harvest Time
… Crop Analysis & Planning (ENCAP) and Switchgrass Harvest Date, Yield, Nutrient Removal Estimator (SHYNE). The second chapter examines harvest date implications on yield, nutrient removal, opportunity cost of modified sale dates, and post-harvest storage losses. This harvest date analysis leads to …
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Harvest practices cause aberrations in pork quality
… facilities. Therefore, we hypothesized harvesting practices, such as scald alter color across muscles of the ham. Scald time was initially investigated using 32 carcasses subjected to either a 4 (n=16) or 8 (n=16) min scald time. Samples were collected before or after scalding and at 24 …
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Mechanization of the selective harvest of broccoli
… made of concepts for mechanizing the selective harvest of broccoli. Selective harvesting has advantages over once-over harvesting because of greater yield and reduced handling requirements. Results of a preliminary experiment measuring broccoli stalk cutting forces indicated that the blade speed …
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Proteomics Study of Pre-Harvest Sprouting in Wheat
<p>Pre-harvest sprouting (PHS) of wheat (Triticum aestivum L.) is a condition characterized by the early germination of spikes during moist environmental conditions. PHS lowers yield, degrades the quality of grain and thus limits the profits of wheat producers groups. During this investigation, …
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Petrography of the Harvest Lake Area, Quebec, Canada
<p>It was found, by determining the types of minerals found in the Harvey Lake area, that the sedimentary rocks of sandstone, dolostone, limestone, and shales were regionally metamorphosed to a degree of metamorphism corresponding with that of the “Staurolite-Almandine Subfacies” of the …
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Gleaning the Harvest: Strangite Missionary Work, 1846-1850
This thesis argues that in studying the missionary work of the followers of James J. Strang, one gains a better understanding of the expectations and complexities of first generation Mormons. The introduction provides a background of the Church of Jesus Christ of Latter Day Saints (Strangite) from …
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Harvest ecology and biodiversity of South African Porphyra
… of abalone (Haliotis midae), and pressure to harvest it has recently increased. This study aims to assess the potential for harvest of Porphyra on the south-western shores of South Africa. There are two main thrusts to this work. The fIrst thrust examines Porphyra as an ecological entity in …
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The grey harvest : hunting wolves in America's Heartland
… levels. Game officials maintained that these "harvests" - the first in each state's history - were a necessary step for effective wolf management. Critics, however, protested that killing a recently threatened species in such fashion might jeopardize its long-term survival. Wolves invoke …
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Harvest-Time Optimal Path Planning in Dynamic Flows
… autonomous vehicles that optimally collect/harvest external fields from highly dynamic environments has grown in relevance. Autonomously maximizing the harvest in minimum time is our present path planning objective. Such optimization has numerous impactful applications. For instance, in the …
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Incorporating financial analysis into timber harvest scheduling models
… and adapted to a forest products firm’s timber harvest scheduling model in an attempt to increase its net present value of harvest returns, using alternative harvest criteria. The firm’s original harvest scheduling model was used as a control model for the study. A net present value financial …
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Maximizing wildlife benefits through hardwood timber harvest scheduling
A computerized system for planning timber harvest to maximize habitat quality over time for a specified group of wildlife species was developed for upland oak forests of the Eastern United States. This system, called WILDWOOD for WILDiife/WOOD optimization system, is designed to run on a …
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Evaluating Methods of Screening for Pre-Harvest Sprouting in Soft Red Winter Wheat and the Effect of Delayed Harvest on Flour Properties
High pre-harvest rainfall in 2006 caused significant pre-harvest sprouting (PHS) and weathering throughout the mid-Atlantic soft red winter wheat (SRWW) (Triticum aestivum L.) growing region. Sprouting and weathering caused decreased flour quality due to lowered dough viscosity and decreased …
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Foodborne pathogens in poultry production and post-harvest control
… on four turkey flocks (F5-F8) to identify the preharvest sources of Salmonella colonization. Generic E. coli and total coliforms were enumerated as indicators of fecal contamination in F7 and F8. Turkey cecal and crop contents, litter, drinkers, air, feed, feeder contents, and environmental swabs …
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Angler Harvest Survey of Lake Francis Case, South Dakota
<p>An angler harvest survey, consisting of two independent surveys, was conducted on Lake Francis Case, South Dakota, from May through October 1981, and April through October 1982. An aerial angler count was used to estimate angle pressure, and an angler interview survey was used to estimate catch …
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The welfare and quality of farmed salmonids at harvest.
… methods. This study examined the effects of harvesting on the stress response and carcass quality of farmed salmonids with a view to recommending best practice. Current salmonid harvesting techniques were determined via a questionnaire circulated to the industry. Commonly used killing/ …
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