Chemical characteristics of Malian and Belgian solid waste composts

Two composts, a Malian ( C 1) and a Belgian ( C 2), and a peat substrate ( C 3) were analyzed for their suitability for land application. The results revealed that the materials can be used in agriculture but only the composts can supply all macro-nutrients necessary for plant growth. The fractionat...

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Bibliographic Details
Published in:Bioresource technology 2002, Vol.81 (2), p.97-101
Main Authors: Soumaré, M, Demeyer, A, Tack, F.M.G, Verloo, M.G
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fractions
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Heavy metals
Metals, Heavy - analysis
Municipal solid waste compost
Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries
Peat substrate
Soil-plant relationships. Soil fertility. Fertilization. Amendments
Waste Management
Waste Products - analysis
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Summary:Two composts, a Malian ( C 1) and a Belgian ( C 2), and a peat substrate ( C 3) were analyzed for their suitability for land application. The results revealed that the materials can be used in agriculture but only the composts can supply all macro-nutrients necessary for plant growth. The fractionation of Mn, Fe, Zn and Cu in operationally defined fractions (water soluble, exchangeable, complexed, organically bound and residual) allows estimation of the availability of metals for uptake. For example, 16% of the total Mn in the composts ( C 1 and C 2) and 22% in the peat substrate would be plant available. Available Fe in the three materials was less than 2%. Available Zn varied from 10% to 25%. The fractionation also allowed estimation of the potential for contamination of groundwater following the applications of composts to agricultural lands.
ISSN:0960-8524
1873-2976
DOI:10.1016/S0960-8524(01)00125-0