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 18 of 18 for “"turfgrass quality"”.
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Sprinkler system performance and irrigation scheduling effects on turfgrass quality
… types. 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 …
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ESTABLISHMENT OF TURFGRASS FROM SEED AND SOD IN SAND BASED SYSTEMS COMBINING SPRINKLER AND SUBSURFACE DRIP IRRIGATION SYSTEMS
<p>The establishment of turfgrass using subsurface drip irrigation (SDI) in sand based media has limited success. However, it is unknown if starting with overhead (sprinkler) irrigation and transitioning to SDI can enhance turfgrass establishment. Two experiments were conducted at Stephen F. Austin …
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Competitive Effects of Perennial Ryegrass and Chewings Fescue on Bermudagrass Seed Establishment
… bermudagrass could potentially enhance summer quality of a perennial ryegrass fairway during periods of extreme summer stress. Studies were conducted over two years on both perennial ryegrass and Chewings fescue (Festuca rubra L. ssp. commutata Gaud.) areas to assess the competitive effects of …
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Biosolids as a source of soil conditioning and fertility for turfgrass
… are shifting towards producing exceptional quality (EQ) biosolids to increase recycling rates to land, especially urban areas. Other methods of improving the environmental impact of wastewater treatment includes additions of iron (Fe) to reduce phosphorus (P) concentrations in outgoing …
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Establishment Method and Cultural Practice Effects on Sports Turf
… water infiltration, gas exchange, rooting, and turfgrass quality caused by soil layering. Core-aerification and sand topdressing may help alleviate the problems associated with soil layering from the use of soil-based sod on sand-based rootzones. Therefore, the objectives of this research were …
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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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Spectral analysis of hybrid bermudagrass placed under various combinations of nitrogen and water availability
… for rapid, accurate and objective evaluation of turfgrass quality for instantaneous nitrogen and water application correction. Such a test has been made on hybrid bermudagrass 'Tifway' [ Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy] through a 2-year field study at the Center for …
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Evaluation of fine fescues as alternative golf course fairway turfgrasses
… be able to withstand the pressure from typical turfgrass disease and stresses while producing acceptable turf and excellent playing quality with fewer overall inputs of pesticides, water, and fertilizer. Little research has been conducted on these species in a fairway setting, so golf course …
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Physiological response of two turfgrass species to increasing drought and salinity stress using a line source gradient
… valley, as an alternative irrigation source for turfgrass. Results indicated that the aquifer could be used as a supplemental irrigation source, without any diminished turfgrass quality, if total water potentials {dollar}\rm(\Psi\sb{T}){dollar} were maintained above species specific thresholds, …
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Evaluation of Sensing and Machine Vision Techniques in Stress Detection and Quality Evaluation of Turfgrass Species
… was also studied in objectively evaluating turfgrass quality parameters like, color, density and texture from National Turfgrass Evaluation Program trials. Image sensing took the greatest amount of time, while non-image sensing techniques were the fastest among the evaluated methods. All …
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Evaluation of novel techniques to establish and transition overseeded grasses on bermudagrass sports turf
… control of PR. During each transition, turf quality suffers as one grass dies or enters dormancy while another grass is promoted to fill voided areas. Field studies at various locations in Virginia were conducted to investigate methods of improving spring and fall transition. Bermudagrass …
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Drought and salinity tolerance of cool-season turfgrasses
… increased use of recycled water/saline water for turfgrass irrigation in arid and semi-arid climates, there is an increasing demand for drought and salt tolerant turfgrass. Kentucky bluegrass (Poa pratensis L.), tall fescue (Festuca arundinacea Schreb.), and perennial ryegrass (Lolium perenne L.) …
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Nutritional and PGR effects on lipid unsaturation, osmoregulant content, and relation to bermudagrass cold hardiness
… study. Ethephon promoted early senescence and turfgrass quality during fall ratings in both years of the study while N, Fe, and SWE increased quality over the control in 2001 and only N showed better quality and color retention over the control in 2002. Samples removed from cold acclimated …
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Impact of Management Practices on Cold Tolerance of Ultradwarf Bermudagrass Putting Greens
… (TE) on UDB cold tolerance, winter quality, and cold de-acclimation (CD). Our results indicate that the use of turf covers significantly increased UDB canopy and soil temperatures when air temperatures were below -3.9°C. Air gaps under covers and the use of double turf covers …
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Effects of Biosolids on Tall Fescue-Kentucky Bluegrass Sod Production and Soil Chemical and Physical Properties
Composted biosolids have been shown to enhance turfgrass establishment and growth more than fertilizer alone, but few studies have investigated the production of turfgrass using uncomposted biosolids. Increasingly employed treatment methods that generate pathogen-free, low pollutant-containing …
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Optimizing Topramezone and Other Herbicide Programs for Weed Control in Bermudagrass and Creeping Bentgrass Turf
… could enhance weed control and may conserve turfgrass quality. A novel mixture of topramezone at 3.7 g ae ha-1 and metribuzin at 210 g ai ha-1 controlled goosegrass effectively and reduced bermudagrass foliar bleaching associated with topramezone 10-fold compared to higher doses of …
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Compost Application Practices for Revegetating Disturbed Soils
… applications on changes in soil properties and turfgrass stand on a highway roadside. The short-term effects of (1) no compost application; (2) 2.5 cm compost surface mulch; (3) 2.5 cm compost application, incorporated; (4) 5.0 cm compost application, incorporated; (5) 0.6 cm compost blanket; …