2006
DOI: 10.1590/s0103-90162006000400003
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Bioavailability of cadmium and lead in a soil amended with phosphorus fertilizers

Abstract: Phosphorus fertilizers are essential to obtain high productivity, however, they contain heavy metals that can contaminate the soil and threat the health of animals and humans. The present study focused the determination of Cd and Pb concentrations in different phosphorus fertilizers as well as the absorption of these heavy metals by velvet green bean grown on soil amended with such fertilizers. The experiment was set up as a completely randomized design in a factorial scheme. The factors were four phosphorus s… Show more

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Cited by 85 publications
(45 citation statements)
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“…Moreover, the fact that the Ni content was always higher in forest areas than in cultivated soil reinforces the natural origin of the element. Decreased Ni levels may occur in cultivated areas due to Ni removal by crops, uptake via agricultural inputs or leaching into deeper soil layers (Mendes et al 2006, Antoniadis & Tsadilas 2007. In addition, Ni exhibits greater affinity to soil organic matter (Senesi et al 1989), which is found in higher concentrations in soils under natural vegetation (Table 2), and may reduce Ni losses in the system.…”
Section: Resultsmentioning
confidence: 99%
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“…Moreover, the fact that the Ni content was always higher in forest areas than in cultivated soil reinforces the natural origin of the element. Decreased Ni levels may occur in cultivated areas due to Ni removal by crops, uptake via agricultural inputs or leaching into deeper soil layers (Mendes et al 2006, Antoniadis & Tsadilas 2007. In addition, Ni exhibits greater affinity to soil organic matter (Senesi et al 1989), which is found in higher concentrations in soils under natural vegetation (Table 2), and may reduce Ni losses in the system.…”
Section: Resultsmentioning
confidence: 99%
“…Only in the upper section of the cultivated areas, regardless of depth, the Cd levels were slightly higher than the quality reference value, which is 0.5 mg kg -1 (Pernambuco 2014). In the upper section, the Cd enrichment in the soil generally results from fertilizers, particularly phosphate fertilizers (Mendes et al 2006, Freitas et al 2009). …”
Section: Resultsmentioning
confidence: 99%
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“…A poluição do solo com esses agentes decorre, principalmente, da mineração, indústria metalúrgica, disposição de resíduos tóxicos e práticas agrícolas, como aplicação de lodos e fertilizantes inorgânicos (Camelo et al, 1997;Chen et al, 2004;Mendes et al, 2006). A acumulação desses elementos em solos pode conduzir não apenas à diminuição da produtividade das culturas em decorrência de seus efeitos fitotóxicos, mas também a efeitos deletérios à saúde humana e animal.…”
Section: Introductionunclassified