Navigation Links
Optimal topdressing applications for athletic fields determined
Date:6/22/2011

EAST LANSING, MIThe practice of "topdressing" athletic fields with sand has been used by turfgrass professionals for years. Topdressing is essential to maintaining safe and healthy turf, and using porous sand allows the turfgrass system to retain the necessary pore space for adequate drainage, even in heavy foot traffic.

While sand-based athletic fields may be preferred by schools and municipalities, conversion to a sand-based system is expensive. Complete renovation is often cost-prohibitive and renders the field temporarily unusable. Because of these drawbacks, complete field renovation is not an option for locations with high use requirements and limited budgets. An alternative method to complete field restoration requires installing drain tiles into athletic fields, followed by applications of sand topdressing. The method is more cost-effective than complete restoration, but if cumulative topdressing rates exceed root system development, surface stability may be compromised.

In a study published in HortTechnology, Alexander R. Kowalewski and colleagues evaluated the effects of cumulative topdressing (over a compacted sandy loam soil) on the fall wear tolerance and surface shear strength of a kentucky bluegrassperennial ryegrass stand. "The initial hypothesis of our research was that topdressing would increase turfgrass wear tolerance characteristics and surface shear strength; however, high amounts of cumulative topdressing applications would reduce these characteristics", said Kowalewski.

A well-graded, high-sand-content root zone (90.0% sand, 7.0% silt, and 3.0% clay) was topdressed at a 0.25-inch depth [2.0 lb/ft2 (dry weight)] per application, providing cumulative topdressing depths of 0.0, 0.5, 1.0, 1.5, or 2.0 inches applied from mid-July to mid-August. A traffic simulator was used for two traffic applications per week from mid-October to early November. In the following year, topdressing applications and traffic were repeated on the same experimental plots. A total topdressing depth of 1.0 inch applied over a 2-year period provided the optimum resultsa combination of turfgrass cover, shoot density, and divot resistance.

Results of the experiments suggested that the 0.5-inch topdressing depth applied over a 5-week period in the summer will provide improved shoot density and surface shear strength in the subsequent fall. The research also indicated that topdressing rates as thick as 4.0 inches accumulated over a 2-year period will provide increased shoot density, but will diminish surface shear strength. The outcomes support previous findings suggesting that overall turfgrass strength will increase as a turfgrass system matures.


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert  

Related biology news :

1. Skywalker ensures optimal communication between neurons
2. Like products, plants wait for optimal configuration before market success
3. April grafting optimal for Fraser fir
4. Study uncovers optimal ecology of bioinsecticide
5. Latest analysis confirms suboptimal vitamin D levels in millions of US children
6. NIMBioS hosts tutorial on optimal control and optimization for biologists
7. Optimal dose of vitamin E maximizes benefits, minimizes risk
8. Ceelox Provides Biometric Identity Access to Cloud Applications
9. Advance in microchannel manufacturing opens new industry applications
10. Silk moths antenna inspires new nanotech tool with applications in Alzheimers research
11. Caffeine energizes cells, boosting virus production for gene therapy applications
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Optimal topdressing applications for athletic fields determined
(Date:1/4/2017)... VEGAS , Jan. 4, 2017  CES ... performance biometric sensor technology, today announced the launch ... sensor systems, the highly-accurate biometric sensor modules ... biometric technology, experience and expertise. The two ... Benchmark designed specifically for hearables, and Benchmark BW2.0, ...
(Date:12/20/2016)... , Dec. 20, 2016 The ... sharing, rental and leasing is stoking significant interest ... radio frequency technology, Bluetooth low energy (BLE), biometrics ... as the next wave of wireless technologies in ... access system to advanced access systems opens the ...
(Date:12/16/2016)... 2016 Research and Markets has announced the ... Forecast to 2021" report to their offering. ... The biometric vehicle access system ... CAGR of 14.06% from 2016 to 2021. The market is estimated ... reach 854.8 Million by 2021. The growth of the biometric vehicle ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... , Jan. 17, 2017 Noom ... is the first to offer fully Spanish behavior ... Noom,s Spanish diabetes prevention and healthy ... and accessibility of lifestyle interventions among Hispanic Americans ... conditions. Noom,s robust food database, program-specific curriculum content ...
(Date:1/17/2017)... ... January 17, 2017 , ... Pono Ola , a ... healthy lifestyle, announced today the official launch of its much-anticipated Pono Board: a re-invented ... , In development for over a year, the patented Pono Board is the ...
(Date:1/17/2017)... -- On January 10 at the Medtech Showcase held in ... in San Francisco , ProclaRx CEO, ... pharmaceutical leaders and public and private investors about the ... destroy biofilms.  Biofilms are a physical ... body,s immune system from eradicating chronic infections. Infections with biofilms ...
(Date:1/14/2017)... CA (PRWEB) , ... January 14, 2017 , ... ... Proximo™, a new service providing complete end-to-end genome assemblies to researchers around the ... genomes eliminates a major obstacle in answering a wide range of scientific questions. ...
Breaking Biology Technology: