Phytotoxicity and distribution of copper in tropical soil amended with sewage sludge and copper sulfate
| Autor: | Vitor C. Almeida, Antonio Carlos Saraiva da Costa, Alexandro M.M. Vargas, Ervim Lenzi, Juliana C.G. Moraes, Lais Bukman, Fernando F. Sodré, Alessandro C. Martins |
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| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Chemical Health and Safety Soil test Health Toxicology and Mutagenesis Iron oxide chemistry.chemical_element Copper sulfate Toxicology Copper chemistry.chemical_compound Sequential method chemistry Agronomy Environmental chemistry Organic matter Phytotoxicity Sludge |
| Zdroj: | Chemical Speciation & Bioavailability. 24:97-104 |
| ISSN: | 2047-6523 0954-2299 |
| DOI: | 10.3184/095422912x13334505546124 |
| Popis: | A greenhouse experiment was conducted to evaluate phytotoxicity and distribution of Cu in a tropical soil amended with sewage sludge (Sw) and copper sulfate (CuSO4.5H2O). Samples of a clay soil from the State of Parana, Brazil were collected at depth of 0–20; 20–40 and 40–60 cm, and brought to the laboratory to be properly accommodated in experimental units (PVC tubes). The Cu treatments were performed by the application of Sw (10 t ha-1) amended with Cu (SB-T), and by CuSO4. H2O (WB-T). Lettuce plants were cultivated in the amended soil in order to predict the toxicity of the Cu. The experiment was conducted for 70 days, and then the lettuce plants and soil samples were collected for analysis. A sequential method was used to separate soil Cu into following fractions: exchangeable, amorphous iron oxide bound, crystalline iron oxide bound, organic matter bound and residual bound. The experimental results showed that Fe, Zn, K, P, Cu and organic matter amounts of the soil increased with the treatmen... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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