CADMIUM BIOAVAILABILITY IN PHOSPHATE FERTILIZERS

被引：3

作者：

Goncalves, Veridiana Cardoso ^{[1
]}

Meurer, Egon Jose ^{[2
]}

Pereira Tatsch, Fernanda Roberta ^{[2
]}

Carvalho, Sheila Andreia ^{[2
]}

dos Santos Neto, Olimpio Abadio ^{[3
]}

机构：

[1] Univ Fed Rio Grande do Sul, Fac Agron, Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Dept Solo, Porto Alegre, RS, Brazil

[3] Agencia Goiana Defesa Agropecuaria Agrodefesa, BR-74140020 Goiania, Go, Brazil

来源：

REVISTA BRASILEIRA DE CIENCIA DO SOLO | 2008年 / 32卷

关键词：

trace-element; commercials phosphates; Avena strigosa; heavy metal;

D O I：

10.1590/S0100-06832008000700034

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Phosphate fertilizers contain heavy metals, including Cd, which is potentially toxic to humans, animals and plants. The objective of this study was to assess the bioavailability of Cd contained in phosphate fertilizers. Six phosphate fertilizers (two natural phosphates, two simple superphosphate, a triple superphosphate and a monoammonia phosphate) were selected for the study of bioavailability in a greenhouse experiment, using Avena strigosa as an indicator of the bioavailability of Cd. The Cd was bioavailable in phosphate fertilizers, since it was found in roots and shoots of the oat. The phosphate fertilizers with higher Cd levels increased its accumulation in plants.

引用

页码：2871 / 2875

页数：5

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