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Stabilisation of metals in mine spoil with amendments and growth of red fescue in symbiosis with mycorrhizal fungi

Author

Listed:
  • L. Simon

    (Department of Land and Environmental Management, College of Nyíregyháza, Nyíregyháza, Hungary)

  • J. Tamás

    (Department of Water and Environmental Management, University of Debrecen, Hungary)

  • E. Kovács

    (Department of Water and Environmental Management, University of Debrecen, Hungary)

  • B. Kovács

    (Department of Food Science and Technology, University of Debrecen, Debrecen, Hungary)

  • B. Biró

    (Laboratory of Rhizobiology, Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary)

Abstract

Metal stabilisation effects of amendments (1% m/m CaCO3-L, 5% m/m municipal sewage sludge compost-MSSC, and 7.5% m/m natural zeolite-Z) were studied on acidic mine spoil (pHKCl 3.73) from Gyöngyösoroszi (Hungary) containing Cd-15.0, Cu-336, Mn-568, Pb-1919, and Zn-3306 mg/kg. Red fescue (Festuca rubra, cv. Keszthelyi 2) was grown in a pot experiment in amended mine spoil, and was infected with spores of a Zn-tolerant arbuscular mycorrhizal fungi (AMF) Glomus intraradices. During 12 weeks of plant growth L + MSSC + Z amendments were more effective in stabilizing the pH, reducing the leaching and phytoavailability of metals in mine spoil than the lime application itself. Liming (L) had a negative effect on Cd, Mn and Zn concentrations in mine spoil water (leachate) as compared to the untreated control. In mine spoil stabilized with a combination of amendments red fescue growth can be established in symbiosis with AMF. Rate of AMF infection (F 4%) was low in limed mine spoil but was especially high (F 93%) in the case of L + MSSC + Z application. In shoots of these cultures - as a trend - AMF reduced the concentration of Cd by 35-55%, Cu by 9-34%, Mn by 14-55%, and Zn by 22-44%.

Suggested Citation

  • L. Simon & J. Tamás & E. Kovács & B. Kovács & B. Biró, 2006. "Stabilisation of metals in mine spoil with amendments and growth of red fescue in symbiosis with mycorrhizal fungi," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(9), pages 385-391.
    • Handle: RePEc:caa:jnlpse:v:52:y:2006:i:9:id:3456-pse
    DOI: 10.17221/3456-PSE
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