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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
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Publication Type:
i
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
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
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
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