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 21 for “"specialty crops"”.
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Soil solarization weed control in specialty crops
Soil solarization (SS) is a broad-spectrum soil disinfestation technique for the control of crop diseases, nematodes and weeds. Target soils are tilled, irrigated to field capacity, covered, and sealed with transparent polyethylene (PE) plastic mulch during the hottest part of the year for a period …
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Nitrogen Fate and Transformations in the Production of Containerized Specialty Crops
… Due to production aspects, the N added to crops far exceeds the amount that the plant uses and such inefficiency results in adverse environmental impacts related to N gaseous and aqueous emissions from containers on the production site. Growers are responsible for optimizing nutrient usage …
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Specialty crop sensitivity to dicamba
… and potatoes (Solanum tuberosum) are important specialty crops, accounting for 4% of the total agricultural crops sales in 2019 (USDA-NASS). Production continues to grow, as the sales these three crops generated increased from 30% of all specialty crop sales in 2012 to 47% in 2019 (USDA-NASS). …
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Exploring Potential Innovative Marketing Approaches for US Agribusinesses
… second proposed marketing approach explores the specialty crops marketing channel to institutional foodservice establishments. For AgCache, exploratory qualitative analysis was first conducted through a series of in-depth interviews with current AgCache site owners. This was followed by survey …
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Ferns as a forest farming crop: effects of light levels on growth and frond quality of selected speicies with potential in Missouri
… under management. In forest farming, high-value specialty crops that require some degree of shade are grown under the protection of the surrounding forest's canopy. The canopy is judiciously modified and managed to provide the proper amount of shade necessary for the specialty crop. Overstory …
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Computer Vision Algorithms for Yield Mapping in Specialty Farms
… the agricultural landscape. For commodity crops such as maize, wheat and soy recurring farming tasks such as seeding, weeding, irrigation, fertilization, application of pesticides, harvesting, and storage are in the process of being completely automated. Specialty crops (tree fruit, …
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Toward optimized surveillance of adventive Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) based on aspects of its foraging ecology
… deleterious impacts on the production of various specialty crops. Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) is the predominant egg parasitoid of H. halys in Asia and considered a potential agent for classical biological control. Adventive T. japonicus populations have been detected …
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Assessing the conservation value and food system impacts of high tunnels
… encourage local availability and production of specialty crops the Natural Resource Conservation Service (NRCS) has launched the Seasonal High Tunnel initiative. This cost-share program provides farmers with a high tunnel intended to encourage the availability of locally grown fresh produce. …
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Assessing the salinity effects and economic feasibility of on-farm desalination technology in irrigated semi-arid regions
… economic returns, particularly for high-valued specialty crops, such as melons and onions; however, these benefits are considerably less than the costs of operating the desalination technology.
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Corn tissue nutrient response related to soil health and fertility
… analysis. This tool is routinely used for some crops (e.g., especially specialty crops) for diagnosing plant nutrient needs and direct fertilizer decisions. End of season yield response to fertilizer may be improved by using both of these two diagnostic tools. Research conducted in 2019 and 2020 …
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Alternaria Leaf Blight and Head Rot of Broccoli: UAV-Based Disease Detection and Fungicide Resistance Management
… increasingly adopted for disease monitoring in specialty crops, though its efficacy for ABHR in broccoli fields is unexplored. During the 2021-2024 field seasons, samples with ABHR symptoms were collected from brassica crops and weeds across Virginia. Alternaria species were identified via PCR …
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Exploring Chemically Mediated Interactions Between Spotted Lanternfly, Lycorma delicatula, and Its Host Plants in the Mid-Atlantic Region of the United States
… persistent feeding, and honeydew threaten specialty crops, especially wine grapes. Management often relies on insecticides and removal of tree-of-heaven (Ailanthus altissima), a preferred host from which L. delicatula sequesters quassinoids for chemical defense. Yet how volatile …
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Fruit cluster pruning impacts on yield and quality of three tomato cultivars in an organic high tunnel system
… production of high-quality, high-yielding crops is important for fruit and vegetable producers, especially growers who use high tunnels. The valuable space within a high tunnel is well-suited to organic farming and can be used to grow many specialty crops. Fruit load management is practiced …
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Plant growth under photovoltaic arrays of varying transparencies – a study of plant response to light and shadow in agrivoltaic systems
… that enables simultaneous cultivation of food crops and electricity generation on the same plot of land. Agrivoltaic systems integrate solar photovoltaic (PV) energy generation with agricultural operations, maximizing the utilization of solar energy. This approach has gained significant …
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Methods for Evaluating Agricultural Enterprises in the Framework of Uncertainty Facing Tobacco Producing Regions of Virginia
… and sensitivity analysis. It is shown that specialty crops are not likely to replace tobacco income, at least in the near term. Developing a diversified farm plan could help farmers to make a smooth transition to other alternatives.
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Farm-to-table food safety for Colorado produce crops: a web-based approach for promoting good agricultural and handling practices
… developed to help promote ten selected Colorado specialty crops: apples, berries, broccoli, leafy greens, melons, peaches, peppers, potatoes, squash, and tomatoes. The approach of developing technology-based training modules and educational materials allowed for improved accessibility to growers …
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Essays on the Economics of Policy and Regulation in Agricultural and Food Markets
… the effects of crop insurance on the supply of specialty crops in the United States. I use a nationally-representative farm-level dataset to evaluate the impacts of crop insurance on the acreage and crop value of fruits and vegetables. The empirical strategy addresses the potential endogeneity …
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Discovery and dissemination of new knowledge in food science: Analytical methods for quantification of polyphenols and amino acids in fruits and the use of mobile phone-based instructional technology in food science education
… enhances human health and increases the value of specialty crops.
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Exploring avenues of fruit and vegetable promotion by Illinois farmers
… of Illinois farmers towards the promotion of specialty crop consumption. Previous literature on this topic encompassed information about fruit and vegetable social marketing campaigns that were conducted through farmers’ markets and grocery stores. However, to our knowledge, there was no …
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