Persistence and metabolism of imidacloprid in different soils of West Bengal

被引：90

作者：

Sarkar, MA ^{[1
]}

Roy, S ^{[1
]}

Kole, RK ^{[1
]}

Chowdhury, A ^{[1
]}

机构：

[1] Bidhan Chandra Krishi Viswavidyalaya, Fac Agr, Dept Agr Chem, Pesticide Residue Lab, Nadia 741252, W Bengal, India

来源：

PEST MANAGEMENT SCIENCE | 2001年 / 57卷 / 07期

关键词：

imidacloprid; imidacloprid-urea; imidacloprid-olefin; soil; persistence; metabolism;

D O I：

10.1002/ps.328

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A laboratory experiment was performed to study the persistence of imidacloprid from two formulations (Confidor 200 g litre(-1) SL and Gaucho 700 g kg(-1) WS), and its metabolism in three different soils (Gangetic alluvial soil of Kalyani, lateritic soil of Jhargram and coastal alkaline soil of Canning) of West Bengal following application at 0.5 kg and 1.0 kg AIha (-1). Dissipation of imidacloprid in soil followed first-order kinetics and DT50 values ranged from 28.7 to 47.8 days. The shortest half-lives (28.7 and 35.8 days) were observed in the lateritic soil of Jhargram for both liquid and powder formulations. The formation of two metabolites of imidacloprid, imidacloprid-urea and imidacloprid-olefin, was first detected on day 30 of degradation at 28 (+/-1) degreesC in all three soils. (C) 2001 Society of Chemical Industry.

引用

页码：598 / 602

页数：5

共 17 条

[1] ACTIONS OF IMIDACLOPRID AND A RELATED NITROMETHYLENE ON CHOLINERGIC RECEPTORS OF AN IDENTIFIED INSECT MOTOR-NEURON [J].