Full TGIF Record # 71961
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Web URL(s):https://archive.lib.msu.edu/tic/its/articles/1997pro139.pdf
    Last checked: 11/10/2008
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Author(s):Cisar, J. L.; Snyder, R. H.; Snyder, G. H.
Author Affiliation:University of Florida, FLREC, Ft. Lauderdale, FL
Title:Alleviating soil-water repellency
Section:Technical paper
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Meeting Info.:Sydney, NSW, Australia: 20-25 July, 1997
Source:Proceedings of the 8th International Turfgrass Research Conference. Vol. 8, 1997, p. 139-145.
# of Pages:7
Publishing Information:Sydney, Australia: International Turfgrass Society
Keywords:TIC Keywords: Hydrophobic soils; Cynodon dactylon; Cynodon transvaalensis; Golf greens; Surfactants; Comparisons; Wetting agents; Combination treatments; Application rates; Turfgrass quality; Localized dry spots; Drought; Physical properties of soil; Precipitation; Color
Cultivar Names:Tifdwarf
Abstract/Contents:"Even with routine irrigation, soil-water repellency on sand-based turfgrass systems can occur. This study evaluated three commercially-available surfactants alone or in combination for their effect on reducing soil-water repellency in mature Cynodon dactylon x Cynodon transvaalensis cv. Tifdwarf USGA green. The surfactants were a commercial standard AquaGro, and two recently commercially-available products, Primer, and Aqueduct, applied as liquids at a rate of 250, 190 and 250ml, 100m-2, respectively. Combination treatments of AquaGro+Primer, AquaGro+Aqueduct and Primer+Aqueduct were also applied at standard rates. The experiment was initiated on 14 May 1996. Surfactants were applied weekly to 4 Jun 1996, and monthly thereafter through December 1996. Surfactants were evaluated for their effect on turfgass quality and percent dry spot incidence through a period of drought which induced soil-water repellency symptoms and subsequently through a period of turf recovery. Soil cores were collected on 24 July 1996 and dried for two weeks at room temperature. Water repellency was measured at 1cm intervals from the air/thatch interface to a depth of 6cm by placing 36μl of water on the soil surface and recording the water drop penetration time (WDPT). Data were analysed for statistical significance (P<0.05) by automated ANOVA procedures. Results from this study demonstrated that during a period of drought, Primer or Aqueduct generally provided both significantly (P<0.05) higher turfgrass quality and reduced percent dry spotting than AquaGro and untreated controls. Primer or Aqueduct significantly (P<0.05) reduced WDPT. Furthermore, during a five month period following the drought, Primer or Aqueduct treatment provided significantly (P<0.05) better turf quality than untreated controls. Combination treatments of primer and AquaGro or Primer and Aqueduct did not provide significantly higher quality turf or less percent dry spots than individual application of either Primer or Aqueduct."
See Also:Other items relating to: LDS

Other items relating to: Wetting Agents
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cisar, J. L., R. H. Snyder, and G. H. Snyder. 1997. Alleviating soil-water repellency. Int. Turfgrass Res. Conf. 8:p. 139-145.
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    Last checked: 11/10/2008
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MSU catalog number: SB 433 .I52 no.8
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