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| Web URL(s): | https://stri.lib.msu.edu/vol77-2001/pdf/sptri00077024.pdf
Last checked: 09/19/2005
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Author(s): | Honig, J. A.;
Murphy, J. A. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Foran Hall, New Brunswick, NJ |
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| Title: | Antecedent water content and air encapsulation effects on physical properties of sand root zone material |
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| Source: | Journal of Turfgrass Science. Vol. 77, 2001, p. 24-37. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 14 |
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| Keywords: | TIC Keywords: Soil water content; Physical properties of soil; Root zone; Air filled porosity; Saturated hydraulic conductivity; Sand-based root zones
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| Abstract/Contents: | "Soil physical properties are used to select acceptable sand-based materials for construction of sports turf root zones. However, considerable variation in physical property results can occur, particularly saturated hydraulic conductivity (Ksat). Three laboratory studies determined whether air encapsulations occurred in samples during test procedures and the subsequent effect on test results. All studies evaluated sand-based samples packed into 50.8 and 76.2 mm i.d. cylinders and saturated at three antecedent sample water contents. Sample water content treatments were developed to avoid confounding effects including compacting samples at different water contents. Study 1 also assessed three methods of saturation before the Ksat test: slowly saturated, quickly saturated, and vacuum saturated. Studies 2 and 3 assessed antecedent sample water content at sample loading into cylinders and after compaction of the samples, respectively. Use of 50.8 mm i.d. cylinders increased bulk density by 0.02 g cm-3 compared to 76.2 mm i.d. cylinders and, therefore, slightly decreased porosity values; cylinder diameter did not interact with other factors evaluated. Encapsulated air was observed in all samples except for those saturated under vacuum. Antecedent sample water content less than approximately 0.10 m3 m-3 before saturation reduced the amount of air encapsulated in test samples and subsequently Ksat increased. High antecedent water content (0.332 m3 m-3) before sample saturation also minimized encapsulated air in test samples and subsequently Ksat increased. Current water conductivity testing of sand-based root zone materials assesses satiated rather than saturated samples; procedures that eliminate or control bias caused by antecedent water content of test samples are needed." |
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| Language: | English |
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| References: | 28 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Honig, J. A., and J. A. Murphy. 2001. Antecedent water content and air encapsulation effects on physical properties of sand root zone material. J. Sports Turf Res. Inst. 77:p. 24-37. |
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| Web URL(s):
https://stri.lib.msu.edu/vol77-2001/pdf/sptri00077024.pdf
Last checked: 09/19/2005
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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