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| Web URL(s): | http://usgatero.msu.edu/v02/n19.pdf
Last checked: 11/2003
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Miller, Robert O. |
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| Author Affiliation: | Affiliate Professor, Soil and Crop Sciences Department, Colorado State University, Fort Collins, Colorado |
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| Title: | Variation in saturated hydraulic conductivity: The effect of antecedent moisture content |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 2, No. 19, October 1 2003, p. [1-7]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Physical properties of soil; Golf greens; Hydraulic conductivity; Root zone mixture; Root zone
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| Abstract/Contents: | "Researchers at Colorado State University have studied inter-lab variability in testing for saturated hydraulic conductivity (SHC) in samples of putting green rootzones. In 2000, a research project was initiated to investigate the impact of antecedent moisture on SHC. Antecedent moisture is the inherent initial moisture content of the rootzone mix immediately prior to initiation of the test method in the laboratory. Results of the study include: Data provided by several cooperating laboratories indicated rootzone mixes low in antecedent moisture tend to have higher SHC rates than those which have a high moisture content at the time of anlaysis. Antecedent moisture had little impact on either capillary porosity, air-fill porosity, or bulk density across the range of antecedent moisture evaluated. In 2002, the USGA Green Section Putting Green Committee (PUG) program revised ASTM method F187497, to include and antecedent moisture equilibration step to the method. All USGA-PT rootzone samples were to be equilibrated to a moisture content of 8.0% ± 0.5% (by weight) prior to analysis for SHC. Results from the 2002 USGA-PT program show that the addition of the antecedent moisture step to the SHC method has resulted in decrease in inter-lab variation in the SHC results over a previous year." |
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| Language: | English |
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| References: | 3 |
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| See Also: | Other Reports from this USGA research project: 1999-05-165 |
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| Note: | Pictures, color
Tables
Graphs
Summary as abstract |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Miller, R. O. 2003. Variation in saturated hydraulic conductivity: The effect of antecedent moisture content. USGA Turfgrass Environ. Res. Online. 2(19):p. [1-7]. |
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| Web URL(s):
http://usgatero.msu.edu/v02/n19.pdf
Last checked: 11/2003
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 A65 [online] |
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