Sorption of the insecticide thiamethoxam in latsols under the effect of both phosphate and vinasse

Quimica nova

Carvalho, Renato Fráguas de¹  Lima, José Maria de¹  Oliveira, Vitória de Souza de¹  Rigitano, Renê Luís Oliveira¹ 

[1] Universidade Federal de Lavras, Lavras, Brasil

关键词: constant of Freundlich;    retention;    pesticide.;   

DOI  :  10.1590/S0100-40422009000600013

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Little informationis available on the behavior of thiamethoxam in soils, whereas many studiesshow the effect of phosphate and vinasse in soils in Brazil. This study evaluatedthe sorption, desorption and retention of thiamethoxam in vinasse- and phosphate-amendedsamples of a dystrophic Red-Yellow Latosol (LVAd) and a distroferric Red Latosol(LVdf). The LVAd presented higher sorption of thiamethoxam. Phosphate did notaffect the sorption or retention and vinasse increased the interaction of thecompound with the soil particles, reducing desorption to the soil solution.

【 授权许可】

CC BY