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DOI: | 10.21273/HORTTECH.23.6.803 |
Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/23/6/article-p803.xml Last checked: 04/30/2020 Access conditions: Item is within a limited-access website https://journals.ashs.org/horttech/downloadpdf/journals/horttech/23/6/article-p803.xml Last checked: 04/30/2020 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | McCoy, Edward L. |
Author Affiliation: | School of Environment and Natural Resources, Ohio Agricultural Research and Development Center, Ohio State University, Wooster, OH |
Title: | Commercial amendments for sand-based root zones: Review and interpretation |
Section: | Reviews Other records with the "Reviews" Section
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Source: | HortTechnology. Vol. 23, No. 6, December 2013, p. 803-813. |
Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
# of Pages: | 11 |
Keywords: | TIC Keywords: Soil amendments; Biosolids; Calcined clay; Capillary porosity; Cation exchange capacity; Clinoptilolite; Diatomaceous earth; Inorganic amendments; Organic matter; Sand-based root zones; Soil management; Soil water retention
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Abstract/Contents: | "Amendments used in sand-based root zones are typically native peats, composts, or inorganic materials of diverse mineralogy. Literature-based guidelines for amendment inclusion include root zone capillary porosity (CP) values exceeding 0.2 m3·m-3 or soil surface water contents exceeding 0.1 m3·m-3. It is also suggested that the cation exchange capacity (CEC) need not exceed 4 cmolc·kg-1. Summarizing published data, native peat added to a U.S. Golf Association (USGA) guideline sand yielding organic matter (OM) content values of ≅15 g·kg-1 would typically yield benchmark values of CP = 0.2 m3·m3, surface water content = 0.1 m3·m-3, and CEC values between 3 and 4 cmolc·kg-1. This OM content is roughly equivalent to 15% by volume of a fibric sphagnum or 7.5% by volume of a hemic reed-sedge. By comparison 15% by volume of an inorganic amendment would likely result in CP and surface water content values less than the benchmark values, and CEC values between 1.5 and 4 cmolc·kg-1. However, the CP benchmark measured at 30 cm of soil water suction should be re-evaluated because it may bias against the use of biosolids compost and inorganic amendments that reduce the thickness of the capillary fringe and create a broader pore size distribution. Also a weak relationship has been observed between longer-term turfgrass quality and 30-cm CP values. Measurement of CP at 40-cm suction would be a better indication of water retention in sand-based root zones for all amendment types. Lastly, inorganic amendments produce a drier root zone that may be preferred for both playability and long-term agronomic concerns." |
Language: | English |
References: | 33 |
Note: | Tables Graphs Summary appears as abstract |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): McCoy, E. L. 2013. Commercial amendments for sand-based root zones: Review and interpretation. HortTechnology. 23(6):p. 803-813. |
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| DOI: 10.21273/HORTTECH.23.6.803 |
| Web URL(s): https://journals.ashs.org/horttech/view/journals/horttech/23/6/article-p803.xml Last checked: 04/30/2020 Access conditions: Item is within a limited-access website https://journals.ashs.org/horttech/downloadpdf/journals/horttech/23/6/article-p803.xml Last checked: 04/30/2020 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2917674a |
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