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Mudanças químicas e fitodisponibilidade de zinco estimada por método isotópico, em solo tratado com lodo de esgoto

2012; Brazilian Chemical Society; Volume: 35; Issue: 7 Linguagem: Inglês

10.1590/s0100-40422012000700012

ISSN

1678-7064

Autores

Felipe Carlos Alvarez Villanueva, Antônio Enedi Boaretto, Lúcia Pittol Firme, Takashi Muraoka, Virgílio Franco do Nascimento Filho, Cassio Hamilton Abreu‐Junior,

Tópico(s)

Heavy metals in environment

Resumo

THE ISOTOPIC METHOD.Zn availability in Red Latossol (Rhodic Ferralsol) of different pH amended with different rates of sewage sludge was studied by the isotopic 65 Zn L value method.Soil chemical properties were found to be altered by SS addition.Zn concentration and Zn derived from SS (ZnpfSS) in plant, and Zn phytoavailability (L value), were increased with increasing SS rates.The linear correlation coefficient of plant Zn with SS rates and with L value was significant at 1% probability.The L value proved an efficient method for predicting Zn phytoavailability in sewage sludge-amended soil with different pH under the soil conditions studied.

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