ADSORPTION OF ATRAZINE IN TROPICAL SOIL UNDER NO-TILLAGE AND CONVENTIONAL TILLAGE

被引：0

作者：

Correia, Fabio Verissimo ^{[1
]}

Mercante, Fabio Martins ^{[2
]}

Fabricio, Amoacy Carvalho ^{[2
]}

Pereira de Campos, Tacio Mauro ^{[3
]}

Vargas, Euripedes, Jr. ^{[3
]}

Langenbach, Tomaz ^{[4
]}

机构：

[1] Univ Fed Rio de Janeiro, IMPPG, Rio de Janeiro, Brazil

[2] Empresa Brasileira Pesquisa Agropecuaria, Ctr Pesquisa Agropecuaria Oeste, Dourados, Mato Grosso Do, Brazil

[3] Pontificia Univ Catolic Rio de Janeiro PUC Rio de, Dept Geotecn Ambiental, Rio De Janeiro, Brazil

[4] Univ Fed Rio de Janeiro, IMPPG, Rio de Janeiro, Brazil

来源：

PESTICIDAS-REVISTA DE ECOTOXICOLOGIA E MEIO AMBIENTE | 2007年 / 17卷

关键词：

SOIL POLUTION; LEACHING; HERBICIDE; ADSORPTION; NO-TILLAGE; ATRAZINE;

D O I：

暂无

中图分类号：

R99 [毒物学（毒理学）];

学科分类号：

100405 ;

摘要：

The purpose of this research was to study the influence of a tillage system kind over the potential of atrazine's adsorption in the soil. The results of the adsorption coefficient showed that isotherms of atrazine in soils under conventional tillage (CT), natural system (SN) and subsuperficial soil (SUB) did fit to Freundlich model, while in the no-tillage (NT) the model did not answer to the behavior of the herbicide. Due the time that the atrazine was in contact with the PD and SN soil, the adsorption increased, reducing the leaching risks. The quality of the organic matter (OM) was, in fact, the reason that caused the largest potential of adsorption in the NT, and not only its quantity. The largest potential of adsorption and the null desorption in the NT, shows more chances of less leaching and water contamination. The main findings advises the NT as the technology that reduces environmental impact from the atrazine and other pesticides.

引用

页码：37 / 46

页数：10

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