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 115 for “"Turfgrass"”.
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Determining Water Requirements in Turfgrass Systems
<p>Turfgrass lawns are commonly utilized for home and commercial applications because of the aesthetic, environmental, and recreational benefits grasses provide, but many people perceive turfgrass as solely an aesthetic benefit that requires significant water inputs. It is important to identify and …
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Water Conservation Practices for Irrigation of Turfgrass Lawns
<p>Turfgrass lawns are widely used in residential and commercial landscapes, providing many environmental, aesthetic, and recreational benefits. However, concerns and scrutiny arise with perceived maintenance requirements, particularly with regards to irrigation. It is important to manage …
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Reduction of wildlife on airfields through turfgrass selection
… habitat in a way that repels birds is vital. A turfgrass species that reduces bird use will minimize the need for these less efficient management tactics. The purpose of this project was to identify a turfgrass species that birds find unattractive that can be used as a part of the management …
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Cyclic irrigation of turfgrass using a shallow saline aquifer
… of applying shallow saline aquifer water to two turfgrass sports fields. The water (0.69-- 3.4 dSm-1) was applied using cyclic irrigation during peak demand months (May--Oct). Treatments consisted of cycling saline water through the existing irrigation systems. Saline substitution of fresh water …
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Evaluation and breeding of Hilaria belangeri for turfgrass use.
… to determine the value of this species as a turfgrass, if sufficient genetic variation existed in vegetative , reproductive, and germination traits to allow for improvement of the turfgrass value by breeding, and if this species could be successfully established by seeding. curly mesquite can …
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Field Measurements of Denitrification From Fertilizer Applied to Turfgrass
Denitrification and mass balance measurements of fertilizer N applied to turf was studied under field and greenhouse conditions. Highly enriched 15N-labeled KNO3 or urea was applied to replicated plots on a Flanagan silt loam soil under Kentucky bluegrass (Poa pratensis L.) or creeping bentrgrass …
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Sprinkler system performance and irrigation scheduling effects on turfgrass quality
… Tests to determine the aesthetic quality of turfgrass at different levels of irrigation were run on small turf plots. The grass used in the plot was Cynodon dactylon (L.) Pers. (Common Bermudagrass). Data for cool season grasses were obtained from literature. The data were analyzed and a …
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Computer-assisted evaluation of nationally collected turfgrass cultivar performance data
… related studies, each concerned with improving turfgrass cultivar recommendations to end users and with matching turfgrass cultivars with the management and environmental conditions that best suit them.
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Improving Soil Moisture Assessment of Turfgrass Systems Utilizing Field Radiometry
The need for water conservation continues to increase as global freshwater resources dwindle. In response, many golf course superintendents are implementing new methods and tools to become more frugal with their water applications. For example, scheduling irrigation using time-domain reflectometer …
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Expanding the Application of Spectral Reflectance Measurement in Turfgrass Systems
… investigated to a lesser extent with managed turfgrass systems. The frequent agronomic inputs associated with maintaining golf course grasses allow for exceptional stand quality under harsh growing conditions, but often expend resources inefficiently, leading to either stand loss or …
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Biosolids as a source of soil conditioning and fertility for turfgrass
… managed to improve degraded soil properties and turfgrass quality while minimizing risk of P loss in a field study; and 2) to use spectral reflectance data to compare relationships of vegetation indices to soil and turfgrass parameters. We found that after an initial lag-time of one year, …
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Effect of Turfgrass on Soil Mobility and Dissipation of Several Pesticides
… and dissipation of several pesticides applied to turfgrass and bare soil was studied under field conditions. Cyproconazole [alpha-(4-chlorophenyl)-alpha-(1-cyclopropylethyl)-1H-1,2,4-triazole-1-ethanol] was applied to bare soil (Flanagan silt loam) and creeping bentgrass (Agrostis palustris Huds.) …
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Response of cool-season turfgrass to foliar applied and stabilized nitrogen fertilizers
… factors that affect uptake of N by cool-season turfgrasses. Experiments were conducted to determine the quantity of foliar-applied N that is absorbed by turfgrass leaves, ways to optimize the process, and whether other common management practices can affect foliar N uptake under field …
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Physiological and Environmental Basis of Turfgrass and Weed Response to Mesotrione Formulations
… first triketone herbicide registered for use in turfgrass. Triketones prevent carotenoid biosynthesis by inhibiting the enzyme p-hydroxyphenylpyruvate dioxygenase (HPPD). Although mesotrione controls many species of grass and broadleaf weeds, it is best know for selective control of perennial …
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Optimizing Laser and Liquid Nitrogen Treatments for Weed Control in Turfgrass Systems
… individual-plant treatments to problematic turfgrass weeds: cryogenic liquid exposure and patterned laser energy. In the cryogenic study, a custom-built applicator was used to deliver precise doses of liquid nitrogen (LN) to individual plants of goosegrass (Eleusine indica) and annual …
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Developing remote sensing approaches for integrated pest and pollinator management in turfgrass
… light reflectance to detect non-insect pests in turfgrass. This thesis aims to develop remote sensing and light reflectance methods to aid in a turfgrass IPPM plan, to document the phenology of ABW weevil (Listronotus maculicollis Kirby, Coleoptera: Curculionidae, ABW), and to catalogue …
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Utilization and Configuration of a Multi-Spectral Image Sensor for Turfgrass Data Collection
… sensors, measures reflected light from turfgrass leaves. The primary hypothesis of this research is that image sensors can be used as a viable data collection tool for physical and chemical turfgrass data and that image sensors provide an advantage of over sensing technologies or …
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Ecological Aspects of Four Turfgrass Nematode Genera on Putting Green Turf in Illinois
Studies were conducted to determine the following: (1) the effect of Tylenchorhynchus nudus on root growth of bentgrass and annual bluegrass; (2) the effect and interaction of T. nudus and Magnaporthe poae on bentgrass and annual bluegrass at 24C, 28C, and 30C; (3) the vertical distribution of T. …
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Influence of Plant Growth Regulators on Turfgrass Growth, Antioxidant Status, and Drought Tolerance
… and ascorbic acid concentrations in the three turfgrass species. In the experiment with Kentucky bluegrass, drought stress increased beta-carotene concentration, but did not significantly influence superoxide dismutase (SOD) activity. Foliar application of humic acid (25% active HA) at 5 l/ha …
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Evaluation of Novel Techniques to Control Annual Grasses in Intensively Managed Turfgrass Systems
… weeds are problematic in intensively managed turfgrass systems due to a lack of selective and affordable control options. Four projects were conducted from 2020-2023 to evaluate novel techniques for Annual bluegrass (Poa annua L.), goosegrass (Eleusine indica L. Gaertn.), and smooth crabgrass …
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