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 13 of 13 for “"direct seeding"”.
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Rice adaptation to high temperatures at flowering stage and to direct-seeding
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Approaches to wildflower meadow establishment
… by the Virginia Department of Transportation. Direct seeding in the field, either in spring or fall, failed to produce acceptable levels of emergent plants. Under two treatments conducted in the greenhouse many species germinated well. Weed control is the most critical factor in successful …
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An economic analysis of the potential of Virginia's processing tomato industry
… tomatoes, i.e., high-yield varieties adapted to direct seeding and machine harvesting, has been developed in the Mid-Atlantic region, and many tomato growers in Virginia have indicated intentions to adopt the new production alternative. Under such circumstances, the major concern of this study …
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Utilization of common buckwheat as a short-cycle cover crop before direct-seeded processing cucumber production
… 2010. Using buckwheat as a cover crop prior to direct-seeding cucumber had negative effects on overall cucumber growth and yield in both field and greenhouse experiments. . In the field experiments, buckwheat reduced weed growth during the buckwheat stand, but did not provide long-term weed …
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Live Oak (<em>Quercus virginiana</em>) Recruitment and Seedling Survivorship in a Southern Maritime Forest
… current oak restoration methods by comparing direct seeding to seedling transplantation, as well as the effects of burial depth on seedling recruitment. Live oak (<em>Quercus virginiana</em>) was the species utilized for this study. Restoration methods were compared in Kenan Field on Sapelo …
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Transgenic Rice in Asia: A General Equilibrium Assessment of Potential Welfare Effects and Regional Distribution
… but can only be adopted in areas under direct seeding. Specifying individual technologies contributes to a better comparative assessment of impacts from transgenic rice. The simulation uses a modified version of the Global Trade Analysis Project (GTAP) model with several innovative …
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Development of collagen-based scaffolds for differentiation of induced pluripotent stem cells
… collagen-based scaffolds that are suitable for direct seeding and lineage progression of iPSCs. In this work, three formulas of collagen-based scaffolds were developed by fabricating poly(ethylene glycol) diacrylate (PEGDA) into the collagen hydrogel to form an interpenetrating network (IPN). …
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Physical and chemical properties of coarse coal refuse from Southwest Virginia
… that some refuse piles may be suitable for direct seeding, but many will require heavy lime and/or organic treatments.
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Persistence potential of Great Basin high-elevation conifers under novel climates and disturbance regimes
… and plasticity while testing the utility of direct seeding, and 3) evaluated the ecophysiological limitations to seedling survival. My research shows species-specific differences in the regeneration niche and in seedling strategies for success that may lead to differential survival under …
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Restoring Abandoned Agricultural Lands in Puget Lowland Prairies: A New Approach
… followed by reintroduction of fire, and then seeding and planting. Significant improvements have been made, however existing habitat continues to be converted and additional strategies to restore the ecosystem need to be explored. Developing techniques and methods for restoring abandoned …
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Seasonal soil carbon fluxes in transitioning agricultural soils in Central Washington State: Relations to land-use, environmental factors and soil carbon-nitrogen characteristics
… fertilizers to conservation farming methods with direct seeding and organic soil amendments with a goal of sequestering carbon in the soil. This project evaluates relationships of soil CO<sub>2</sub> respiration and net ecological exchange (NEE) with land-use types, seasonal environmental factors …
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Reclamation of surface-mined forest land in the southern Appalachians
… and black locust (Robinia psuedoacacia) by direct seeding versus hand planting seedlings. After five years, on a minesoil derived from brown sandstone and rough-graded to reduce compaction, the tree-compatible ground cover produced more cover than the traditional ground cover, and the site …