page contains abstracts and reports taken from a sample of ongoing or
completed studies. The research has been categorized into five categories:
1) Water-Use Efficiency, 2) New
Turfgrass Development and Establishment, 3) Chemical
and Fertilizer Environmental Impacts, 4) Unbiased
Product Testing, and 5) Sports Turf Management.
Please note that additional research summaries can be found on the UCRTRAC
page on this website.
Updated Sept. 2008
Turfgrass Performance with Reduced Resource Input
objective of this study, which was conducted at the UC South Coast Research
and Extension Center in Irvine, was to evaluate various aspects of quality
of four turfgrass that were chosen for reduced-input practices, when irrigated
with calculated optimum and less than optimum irrigation regimes and maintained
with varying moderate to low level of nitrogen fertilization.
Turfgrass Development and Establishment
National Turfgrass Evaluation Program (NTEP) is a non-profit organization
that provides leadership in turfgrass evaluation and improvement by linking
the public and private sectors of the industry through their common goals
of grass development, improvement, and evaluation. Its mission is to provide
a mechanism for uniform evaluations; to advance the science of species
and cultivar evaluation; to collect and disseminate performance information;
and to enhance the transfer and use of information and technology relating
to turfgrass improvement and evaluation. Five-year-long studies that examined
the performance of cultivars of tall fescue, buffalograss, bermudagrass
and zoysiagrass at the UCR Turfgrass Facility have been completed. The
results of our findings, as well as the performance results of the same
grasses at other US locations, can be found at www.ntep.org.
and Fertilizer Environmental Impacts
Nitrogen Leaching and Best Management Practices for Overseeded Bermudagrass Fairways
The objective of this study was to investigate the effect of soil type (sandy
loam or loamy sand), annual nitrogen-fertility program (6.0 and 3.0 lb
N/1000 ft2 or 5.0 and 5.0 lb N/1000 ft2 for a 24-
to 27-week cool season and a 22- to 23-week warm season, respectively),
and irrigation amount (100% or 130% ET crop/distribution uniformity) on
of Compost in Turfgrass Management
This study evaluates the effect of composted green waste/biosolids as
a soil amendment on the quality of bermudagrass with and without simulated
sports traffic. Water infiltration rate, surface hardness and surface
elevation changes are also observed.
The Evaluation of Slow-Release Nitrogen Fertilizers Applied on Arizona Common Bermudagrass During the Warm Season
objective of this study was to evaluate the performance of slow-release
nitrogen (N) fertilizers, and a fast-release N fertilizer, in terms of
visual turfgrass quality and color, when applied during the warm season
on an Arizona common bermudagrass that is maintained similar to fairway
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Sports Turf Management
Effect of Putting Green Cultural Practices on Traffic Tolerance
Nitrogen and potassium fertility, core cultivation
and vertical mowing are studied in various combinations to determine the
best package of cultural practices to overcome the effect of simulated
golf traffic on a creeping bentgrass putting green.
Bermudagrass Fall Color Retention
The objective of this project was to examine cultural programs that influence
dormancy or turfgrass color loss of three seeded bermudagrasses during
the late fall and winter in Riverside, California.