Full TGIF Record # 138800
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Web URL(s):https://issuu.com/leadingedgepubs/docs/tn-turfgrass-2008-february-march/24
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Publication Type:
Author(s):Samples, Tom; Sorochan, John
Author Affiliation:The University of Tennessee
Title:Soil texture, wetting agents and water-repellent, sand-based sports fields
Section:Turf talk
Other records with the "Turf talk" Section
Source:Tennessee Turfgrass. February/March 2008, p. 24-29.
# of Pages:6
Publishing Information:Franklin, TN: Leading Edge Communications, LLC
Keywords:TIC Keywords: Texture; Wetting agents; Sandy soils; Athletic fields; Soil analysis; Physical properties of soil; Construction; Root zone; Compaction; Aerification; Coring; Particle size; Dethatching; Thatch; Topdressing; Drainage
Abstract/Contents:Discusses soil texture and the use of wetting agents on water-repellent, sand-based sports fields. Explains that "during sports-field construction, sand is often added to, or used to cap, the existing native soil to create or 'manufacture' a coarse-textured turfgrass rootzone that is resistant to compaction." States that "the texture of a soil is a measure of its fineness or coarseness. Sand particles are relatively large, or coarse, ranging from 0.05 to 2.0 millimeters (mm) in diameter." Describes the soil mechanical analysis, stating that "sports-turf professionals who manage turf in sandy soils are very familiar with soil and tissue testing for nutrient analysis. A soil sample can also be submitted to a soil physical testing laboratory for mechanical or particle-size analysis to determine texture. A full mechanical analysis involves extracting all silt and clay particles from the soil sample before sieving the resulting sand fraction." States that "in time, sandy sports-field soils may become water repellent near the surface, especially within the top 2" [inches]." Explains that "there are several sources of water repellency, or hydrophobicity, in soils. Turfgrasses produce waxy compounds on leaf surfces that can be dislodged by rainfall and irrigation. For example, the leaf cuticle...serves as a shield against penetration by insects and fungi and helps turfgrasses conserve internal moisture. However, once dislodged, waxes from the cuticle may collect in soil pores, restricting the rate at which water moves into (infiltration) and through (percolation) the soil." Offers suggestions for preventing water-repellent soils, including core aerification and core removal, dethatching and thatch removal, topdressing, and wetting agents. Profiles wetting agents, stating that "wetting agents are anionic, cationic, and nonionic...Anionic wetting agents are negatively charged...cationic wetting agents are positively charged...[and] nonionic wetting agents have neither a positive or negative charge."
Note:Reprint appears in Virginia Turfgrass Journal, July/August 2011, p. 18-22
Includes sidebar, "Key points at a glance", p. 26
Pictures, color
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Samples, T., and J. Sorochan. 2008. Soil texture, wetting agents and water-repellent, sand-based sports fields. Tenn. Turfgrass. p. 24-29.
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MSU catalog number: b5471477a
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