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| Web URL(s): | http://usgatero.msu.edu/v08/n04.pdf
Last checked: 03/04/2009
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Van Dyke, Adam;
Johnson, Paul G.;
Grossl, Paul R. |
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| Author Affiliation: | Van Dyke: Research Associate; Johnson and Grossl: Associate Professors, Department of Plants, Soils and Climate, Utah State University, Logan, Utah |
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| Title: | Humic substances effect on moisture retention, nutrition, and color of intermountain west putting greens |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 8, No. 4, February 15 2009, p. [1-9]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Humic substances; Soil water retention; Nutrition; Color; Golf greens; Evapotranspiration; Humic acid; Fulvic acid; Chlorophyll content; Nutrient uptake
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| Abstract/Contents: | "Humic substances are often applied to putting greens to improve turf health, but little is known regarding their effects on soil moisture retention. Commercial humic substance products and pure organic acids were applied to three golf course putting greens in Utah in 2006 and the Utah State University research putting green in 2006 and 2007. These treatments were evaluated for effects on soil volumetric water content, phosphorus (P) uptake, and chlorophyll content of creeping bentgrass. Three irrigation levels, 80%, 70% and 60% of reference evapotranspiration (ETo) were imposed on the turf at the research putting green. Results indicate: Humic substances did not increase moisture retention in putting green soils as pure humic acid significantly decreased soil volumetric water content compared to the control. Both humic acid- and fulvic acid-treated plots had lower soil moisture content readings than the control at a depth of 10 to 15 cm during the growing season. Uptake of P by creeping bentgrass was significantly decreased with the application of humic acid. No differences were observed for chlorophyll content of the turf with any humic substance treatment suggesting turf color is not enhanced when using humic substances." |
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| Language: | English |
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| References: | 17 |
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| See Also: | See also related article "Effects of humic acids on greens: Humic acids have been used to promote nutrient uptake and water retention in greens, but are they effective?" Golf Course Management, 77(11) November 2009, p. 82-84, 86, 88, 90 R=157351 R=157351 |
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| See Also: | Other Reports from this USGA research project: 2007-19-360 |
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| Note: | Summary as abstract
Pictures, color
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Van Dyke, A., P. G. Johnson, and P. R. Grossl. 2009. Humic substances effect on moisture retention, nutrition, and color of intermountain west putting greens. USGA Turfgrass Environ. Res. Online. 8(4):p. [1-9]. |
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| Web URL(s):
http://usgatero.msu.edu/v08/n04.pdf
Last checked: 03/04/2009
Requires: PDF Reader |
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MSU catalog number: b3952822a |
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