Short-term responses of two contrasting species of earthworms in an agricultural soil amended with coal fly-ash

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Show simple item record Muir, M en_US Yunusa, Isa en_US Burchett, Margaret en_US Lawrie, Roy en_US Chan, K en_US Veeragathipillai, Manoharan en_US 2009-12-21T02:29:24Z 2009-12-21T02:29:24Z 2007 en_US
dc.identifier 2006008623 en_US
dc.identifier.citation Muir M et al. 2007, 'Short-term responses of two contrasting species of earthworms in an agricultural soil amended with coal fly-ash', Pergamon, vol. 39, pp. 987-992. en_US
dc.identifier.issn 0038-0717 en_US
dc.identifier.other C1 en_US
dc.description.abstract With the renewewd interest in the use of coal fly-ash for amendment of agricultural soils in Australia, we assessed how earthworms, as indicators of soil health, responded to this ameliorant. We assessed survival, weight, burrowing and elemntal concentrations for earthworms of a native unnamed Megascolecid species and exotic Aporrectodea trapezoides inintect soil cores treated with an alkaline fly-ash at rates aquivalent to 0, 5 and 25t/ha over 6 weeks. Fly ash did not affect survival, growth number of burrows created or phosphorous solubilisation. Transfer of the earthworms to the new environment having vastly different pH from where they were collected, and possibly overcrowding, caused mortality in the soil cores for all treatments. A.trapezoides that had smaller individuals suffered mortality by 0.24 (25% of their original weight) while those of A. trapezoides lot 0.18g each (21% of their original weight).The difference in growth between the two earhtworms was associated with grazing habit andprobably with the large differences in the pH which was more abundant in the fly-ash than the soil, compared with A. trapezoides that had elevated concentration of this metal.Extractable P in the soil was increased with noth species of earhtworms, more so with the exotic species that solubilised 11% more P than the native Megascolecids. The benign influence of fly-ash on survival and growth of worms was associated with the pH of soil remaining unchanged during the six weeks of incubation. en_US
dc.publisher Pergamon en_US
dc.relation.isbasedon en_US
dc.title Short-term responses of two contrasting species of earthworms in an agricultural soil amended with coal fly-ash en_US
dc.parent Soil Biology & Biochemistry en_US
dc.journal.volume 39 en_US
dc.journal.number 5 en_US
dc.publocation United Kingdom en_US
dc.identifier.startpage 987 en_US
dc.identifier.endpage 992 en_US DVCRch.Institute for Water & Environmental Resource Mgmnt en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 0000031750 en_US
dc.personcode 030005 en_US
dc.personcode 101663 en_US
dc.personcode 107130 en_US
dc.personcode 0000031668 en_US
dc.personcode 995955 en_US
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords Fly Ash Earthworm toxicity trace elements en_US
dc.staffid 995955 en_US

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