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Rootzone amendments to improve soil moisture relations under newly-laid sod

Duff, A.A., Poulter, R.E. and Loch, D.S. (2009) Rootzone amendments to improve soil moisture relations under newly-laid sod. TPI Turf News, 33 (3). pp. 42-45.


Organisation URL: http://www.deedi.qld.gov.au
Publisher URL: http://www.turfgrasssod.org
Article URL: http://archive.lib.msu.edu/tic/turfn/articles/2009may42.pdf


Three experiments were conducted on the use of water retaining amendments under newly-laid turf mats. The work focused on the first 12 weeks of establishment.

In soils that already possessed a good water-holding capacity, water retaining amendments did not provide any benefit. On a sand-based profile, a rooting depth of 200 mm was achieved with soil amendment products within three weeks of laying turf. Most products differed in their performance relative to each other at each three weekly measurement interval.

Polyacrylamide gels gave superior results when the crystals were incorporated into the soil profile. They were not suitable for broadcasting at the soil/sod interface. Finer grades of crystals were less likely to be subject to excessive expansion than medium grade crystals after heavy rainfall. Turf establishment was more responsive to products at higher application rates, however these higher rates may result in surface stability problems.

Item Type:Article
Funders:International Turf Producers Foundation.
Corporate Creators:QPIF, Department of Employment, Economic Development and Innovation (DEEDI), Agri-Science, Horticulture and Forestry Science
Projects:Rootzone amendments to improve soil moisture relations under newly-laid sod.
Business groups:Horticulture and Forestry Science
Additional Information:© The State of Queensland (Department of Employment, Economic Development and Innovation) 2009. Copyright protects this publication. Except for purposes permitted by the Copyright Act 1968, reproduction by whatever means is prohibited without prior written permission of the Department of Employment, Economic Development and Innovation. http://www.dpi.qld.gov.au/77.htm. Enquiries should be directed to Commercialisation Unit SAFTRSCopyright@deedi.qld.gov.au or telephone the Business Information Centre on 13 25 23 (Queensland residents) or +61 7 3404 6999.
Keywords:Rootzone; soil mositure; newly-laid sod; turfgrass; warm season turfgrass; root system; establishment; water holding amendments; underlay soil; water holding crystals; polyacrylamide gels.
Subjects:Technology > Technology (General)
Plant culture
Plant culture > Lawns and turfgrasses > Performance and management
Live Archive:10 Oct 2011 04:37
Last Modified:03 Sep 2021 16:43

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