Persistence Behaviour of Thiamethoxam and Lambda Cyhalothrin in Transplanted Paddy

被引:40
作者
Barik, Suhrid Ranjan [1 ]
Ganguly, Pritam [1 ]
Kunda, Samir Kumar [1 ]
Kole, Ramen Kumar [1 ]
Bhattacharyya, Anjan [1 ]
机构
[1] Bidhan Chandra Krishi Viswavidyalaya, Dept Agr Chem, Pesticide Residue Lab, Mohanpur 741252, W Bengal, India
关键词
Alika; 247; ZC; Thiamethoxam; Lambda cyhalothrin; Paddy;
D O I
10.1007/s00128-010-0101-2
中图分类号
X [环境科学、安全科学];
学科分类号
083001 [环境科学];
摘要
A field study was conducted in Pre-Kharif season 2007 on paddy to determine the persistence of thiamethoxam (12.6%) and lambda cyhalothrin (9.4%) [in a 'Readymix' formulation Alika 247 ZC], following the application of 33 g. a.i. ha(-1) (T(1)) and 66 g. a.i. ha(-1) (T(2)). Spraying of insecticide was done during milking stage of the crop (63 days after transplantation). Thiamethoxam and lambda cyhalothrin residues were estimated by HPLC and GLC respectively. The half-life values were 5.2-5.8 and 4.8 days for thiamethoxam and lambda cyhalothrin respectively. No residue was detected in the harvested paddy, straw, grain, and soil samples.
引用
收藏
页码:419 / 422
页数:4
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