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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11847

Title: Inorganic Materials as Ameliorants for Soil Remediation of Metal Toxicity to Wild Mustard (Sinapis arvensis L.)
Authors: Ribeiro Filho, Mateus Rosas
Siqueira, Jose Oswaldo
Fonseca Sousa Soares, Claudio Roberto
Curi, Nilton
Issue Date: 2011
Abstract: The ameliorating effects of different inorganic materials were investigated on a soil originating from a zinc smelter dumping site contaminated by toxic metals. Wild mustard (Sinapis arvensis L.) was used as a test plant. The soil was amended with different doses of mining sludge, Perferric Red Latosol (LVj), steel shots, cyclonic ash, silifertil, and superphosphate. The most effective amendments improved plant growth with 45% and reduced metal uptake by over 70% in comparison to untreated soil. Reductions in availability as estimated by BaCl2-extractable metals reached up to 90% for Zn and 65% for Cd as compared to unamended soil. These reductions were associated with lower shoot and root metal contents. Shoot Zn content was reduced from 1,369 g g-1 in plants grown on untreated soil to 377g g-1 when grown on cyclonic ash amended soil while Cd decreased from 267 to 44 g g-1 in steel shots amended soil. Superphosphate addition had no ameliorating effect. On the contrary, it increased BaCl2-extractable amounts of Zn. Considering all parameters we determined, steel shots, cyclonic ash and silifertil are the most promising for remediating metal contaminated soil in the tropics. Further studies evaluating impacts, cost-effectiveness and durability of effects will be conducted.
Notes: [Ribeiro Filho, Mateus Rosas] Univ Fed Rural Pernambuco UFRPE, Dept Agron, BR-52171900 Recife, PE, Brazil. [Siqueira, Jose Oswaldo; Curi, Nilton] Univ Fed Lavras UFLA, Dept Soil Sci, Lavras, MG, Brazil. [Vangronsveld, Jaco] Hasselt Univ, Ctr Environm Sci, Diepenbeek, Belgium. [Fonseca Sousa Soares, Claudio Roberto] Univ Fed Santa Catarina, Dept Microbiol Immunol & Parasitol, Santa Catarina, Brazil.
URI: http://hdl.handle.net/1942/11847
DOI: 10.1080/15226511003753938
ISI #: 000288276000009
ISSN: 1522-6514
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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