Influence of gypsum enhanced chicken-manure-and-wheat-straw compost on amelioration of an irrigated sodic brown vertisol – laboratory experiment

Bennett, J. McL. and Cattle, S. R. and Singh, B. and Quilty, J. R. (2015) Influence of gypsum enhanced chicken-manure-and-wheat-straw compost on amelioration of an irrigated sodic brown vertisol – laboratory experiment. Arid Land Research and Management, 29 (4). pp. 415-431. ISSN 1532-4982

Abstract

The use of gypsum to ameliorate soil sodicity is a typical practice in Australian agriculture. However, the longevity of ameliorative effect due to gypsum application is often short, due to the rate of dissolution and subsequent leaching by rainfall and/or irrigation. Gypsum was combined with chicken manure/wheat straw compost, during the composting process, in order to investigate the potential of creating a slow release source of calcium (Ca2+). A leaching column experiment was conducted using a Brown Vertisol treated with C0G0 (compost 0 t.ha-1, gypsum 0 t.ha-1), C0G5, C5G0, and C5G5. Columns were irrigated with 635mm of irrigation water in total. C5G5 treated soil retained more Ca2+ and leached less Ca2+ than gypsum alone, decreased the exchangeable cation ratio and increased soil saturated hydraulic conductivity.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 02 Jun 2016 06:09
Last Modified: 22 Sep 2016 02:34
Uncontrolled Keywords: compost; gypsum; leaching; sodicity
Fields of Research : 05 Environmental Sciences > 0503 Soil Sciences > 050304 Soil Chemistry (excl. Carbon Sequestration Science)
05 Environmental Sciences > 0503 Soil Sciences > 050302 Land Capability and Soil Degradation
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070101 Agricultural Land Management
Socio-Economic Objective: D Environment > 96 Environment > 9614 Soils > 961402 Farmland, Arable Cropland and Permanent Cropland Soils
Identification Number or DOI: 10.1080/15324982.2014.991882
URI: http://eprints.usq.edu.au/id/eprint/27598

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