2002
DOI: 10.5380/rsa.v3i1.1026
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Fitodisponibilidade De Cádmio, Chumbo E Crômio, Em Soja Cultivada Em Argissolo Vermelho Eutrófico a Partir De Adubos Comerciais

Abstract: O objetivo deste trabalho foi avaliar a disponibilidade dos metais pesados tóxicos: cádmio, chumbo e crômio, em soja a partir de alguns adubos. Foram utilizados cinco adubos e sais solúveis contendo Cd, Pb e Cr. Os tratamentos foram realizados em vasos de 2,5 L com aplicação de duas doses, 50 e 100 kg ha-1 para os fertilizantes e 25 e 50 kg ha-1 para os sais. O tecido vegetal de soja foi submetido à determinação de Cd, Pb e Cr, através de espectrometria de absorção atômica (chama). Para as plantas cultivadas n… Show more

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Cited by 10 publications
(7 citation statements)
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“…The presence of from soil heavy metals in plants and seeds is due to absorption from soil or absorption via the application of pesticides or fertilizers, since the fertilizers used to supply micronutrients have toxic heavy metals such as Cd, Pb and Cr in their composition, in addition to the desirable elements (Gonçalves Jr. & Pessoa, 2002). These heavy metals may come from indiscriminate disposal of industrial waste, which contain micronutrients and are sold as fertilizers (Gonçalves Jr. et al, 2000).…”
Section: Methodsmentioning
confidence: 99%
“…The presence of from soil heavy metals in plants and seeds is due to absorption from soil or absorption via the application of pesticides or fertilizers, since the fertilizers used to supply micronutrients have toxic heavy metals such as Cd, Pb and Cr in their composition, in addition to the desirable elements (Gonçalves Jr. & Pessoa, 2002). These heavy metals may come from indiscriminate disposal of industrial waste, which contain micronutrients and are sold as fertilizers (Gonçalves Jr. et al, 2000).…”
Section: Methodsmentioning
confidence: 99%
“…Os adubos comerciais, utilizados com a finalidade de suprir micronutrientes, comprovadamente apresentam em sua composição, além dos elementos desejáveis, metais pesados tóxicos, principalmente Cádmio, Chumbo, Cromo (GONÇALVES JR. & PESSOA, 2002), Zinco e Níquel (AMARAL SOBRINHO et al, 1992). Até o momento, não há dados que permitam indicar níveis de tolerância desses elementos indesejáveis nos fertilizantes (ALCARDE & RODELLA, 2003).…”
unclassified
“…The plants absorb directly the toxic metals from the soil or via application of pesticides and fertilizers, which have in their composition, beyond desirable elements, also metals such as Cd, Pb and Cr (Gonçalves Jr. & Pessoa, 2002). These elements may come from indiscriminate disposal of industrial waste as fertilizers containing micronutrients, which are a great concern, since these elements persist in the soil, becoming a source of (1) (2) (3) (4) metal contamination to the environment (Gonçalves Jr. et al, 2000;.…”
Section: Resultsmentioning
confidence: 99%