Full TGIF Record # 42323
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/1065657X.1998.10701913
    Last checked: 10/01/2015
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Publication Type:
i
Refereed
Author(s):Sela, Roy; Goldrat, Tal; Avnimelech, yoram
Author Affiliation:The Laboratory for Management of Environmental Systems, Department of Agricultural Engineering, Technion, Israel Institute of Technology, Haifa, Israel
Title:Determining optimal maturity of compost used for land application
Section:Articles
Other records with the "Articles" Section
Source:Compost Science & Utilization. Vol. 6, No. 1, 1998, p. 83-88.
# of Pages:6
Publishing Information:Emmaus, PA: JG Press
Keywords:TIC Keywords: Composts; Sewage sludge; Soil stabilization; Soil structure; Age; Hydraulic conductivity; Polysaccharides
Abstract/Contents:"A stable compost is needed in plant growth media. However, when compost is land applied, its effect is through the intitation and acceleration of of microbial processes leading to the production of soil stabilizing agents. It was proposed that there is an optimum degree of maturity of compost used for land application, a degree characterized by the reduction of the labile organic matter to the point when the material is relativly stable yet is still active enough to support an increased microbial activity in the soil. The effect of composting time on the efficiency of municipal solid waste compost (MSWC) to improve soil structure properties is, evaluated through laboratory indexes, presented in this work. MSWC was sampled immediately following 24 hours precomposting in a Dano drum. Samples were taken throughout 60 days of windrow composting. The compost samples were mixed with a structure-impaired loess soil and incubated aerobically for 21 days. Hydraulic conductivity and residual turbidity, a measure of microaggregate stability, were measured in solutions of two SAR levels, five and 20. Compost application had a positive effect on on these soil structural properties. The optimal activity was obtained for the compost sampled following seven to 14 days of windrow composting. Polysaccharide concentrations also followed a similar optimum curve. The peak concentration was found following 14 to 30 days old compost application. The determination of optimal maturity of composted municipal solid wastes is essential toward an efficent utilization of the compost, toward satisfaction of environmental constraints and for a cost-efficient operation of conposting plants. The present preliminary study calls for more research in this field."
Language:English
References:14
Note:Figures
See Also:Other items relating to: COMEVA
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sela, R., T. Goldrat, and y. Avnimelech. 1998. Determining optimal maturity of compost used for land application. Compost Sci. Util. 6(1):p. 83-88.
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Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/1065657X.1998.10701913
    Last checked: 10/01/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: TD 796.5 .C584
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