烯啶虫胺50％可湿性粉剂在水稻及稻田水土中的残留动态
为了评价烯啶虫胺在水稻上使用后的残留行为和环境安全性，2010—2011年在湖南、吉林、河北3地进行烯啶虫胺50％可湿性粉剂在水稻环境中的消解动态和最终残留试验，并采用HPLC检测水稻环境中烯啶虫胺的残留量。结果表明：烯啶虫胺50％可湿性粉剂在稻田水、土壤和稻杆中的消解速率非常快，其半衰期分别为：5．77h、28．52h、1．60～2．09d；按推荐剂量在稻田环境中施用烯啶虫胺50％可湿性粉剂3次，距末次施药后14d以上，收获的稻米中烯啶虫胺的残留量均为未检出（〈O．05mg／kg）。此时收获的稻米食用是安全的。...
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| Published in | 西南农业学报 Vol. 25; no. 6; pp. 2065 - 2069 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
湖南农业大学农业环保研究所,湖南长沙,410128
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4829 |
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| Summary: | 为了评价烯啶虫胺在水稻上使用后的残留行为和环境安全性，2010—2011年在湖南、吉林、河北3地进行烯啶虫胺50％可湿性粉剂在水稻环境中的消解动态和最终残留试验，并采用HPLC检测水稻环境中烯啶虫胺的残留量。结果表明：烯啶虫胺50％可湿性粉剂在稻田水、土壤和稻杆中的消解速率非常快，其半衰期分别为：5．77h、28．52h、1．60～2．09d；按推荐剂量在稻田环境中施用烯啶虫胺50％可湿性粉剂3次，距末次施药后14d以上，收获的稻米中烯啶虫胺的残留量均为未检出（〈O．05mg／kg）。此时收获的稻米食用是安全的。 |
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| Bibliography: | To evaluate the residue variation and environment security using nitenpyram in rice, the field trials on the dissipation and final residue of nitenpyram 50 % WP were carried out in Changsha, Hangzhou in rice during 2010 -2011. The residues of nitenpyram in rice were determined by HPLC. The results showed that nitenpyram dissipated rapidly in paddy water, soil and rice, of which half-life were 5.77 h, 28.52 h, 1.60 - 2.09 d, respectively. When nitenpyram 50 % WP was sprayed three times at the recommended dosage in rice field, the final residues of nitenpyram were not detected （ 〈 0.05 mg/kg ） in the rice, which was safe to eat after 14 days. 51-1213/S Nitenpyram ; Liquid chromatography; Rice; Residual dynamics JIANG Bo, YANG Ren-bin , FU Qiang, ZOU Rong, XU Shuang, HUANG Yao （ Institute of Agro-Environmental Protection, Hunan Agricultural University, Hunan Changsha 410128, China） |
| ISSN: | 1001-4829 |