Full TGIF Record # 192693
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/1065657X.2011.10736987
    Last checked: 10/01/2015
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Publication Type:
i
Refereed
Author(s):Illmer, Paul; Liebensteiner, Martin
Author Affiliation:Illmer: Instiute of Microbiology, University of Innsbruck, Austria; Liebensteiner: Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
Title:Use of avoidance tests for investigating potential of the earthworm Eisenia fetida to improve composting of grass clippings
Source:Compost Science & Utilization. Vol. 19, No. 2, Spring 2011, p. 123-128.
# of Pages:6
Publishing Information:Emmaus, PA: JG Press
Keywords:TIC Keywords: Acetic acid; Anaerobic composting; Anoxic conditions; Clipping utilization; Clippings; Composting; Composting methods; Decomposition; Eisenia foetida; Geotrichum klebahnii; Inoculation; Lactic acid; Microbial inoculants; Organic matter; Silage; Sublethal factors; Substrates; Trichoderma viride
Abstract/Contents:"The earthworm Eisenia fetida is the most commonly used worm for worm-supported composting of organic residues. Within the present study, the potential of E. fetida for decomposing grass clippings, an organic waste which usually causes anoxic conditions and thus insufficient degradation in the course of common composting, was investigated. To enable a thorough investigation, the substrate-related requirements of E. fetida were studied using so-called avoidance tests. These tests provide a sensitive method for evaluating the preferences and aversions of soil animals related to substrate ingredients in a sublethal range. E. fetida favored relatively moist soil with about 70% of the WHCmax and the most preferred concentration of fresh grass clippings within soil was 15% (v/v). Pretreatments of the grass clippings like silage, precomposting or inoculation with the fungi Trichoderma viride and Geotrichum klebahnii were investigated and point to an increased tolerance of the worms against pre-composted and inoculated grass whereas ensiled grass and remoistened hay was avoided. The optimum concentration of ammonium for E. fetida was 18 μg NH4+-N g-1 DW soil although the worms could withstand much higher concentrations. Lactic and acetic acid, intermediates that are quickly released from fresh lawn clippings under oxygen lacking conditions, were indicated to be the most important factors for preventing worms from tolerating higher concentrations of grass clippings."
Language:English
References:25
Note:Figures
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Illmer, P., and M. Liebensteiner. 2011. Use of avoidance tests for investigating potential of the earthworm Eisenia fetida to improve composting of grass clippings. Compost Sci. Util. 19(2):p. 123-128.
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Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/1065657X.2011.10736987
    Last checked: 10/01/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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