| 恶唑酰草胺在稻田中的残留及消解动态 |
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| 引用本文： | 孔德洋,石利利,单正军,吴文铸.恶唑酰草胺在稻田中的残留及消解动态[J].生态与农村环境学报,2011,27(5). |
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| 作者姓名： | 孔德洋 石利利 单正军 吴文铸 |
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| 作者单位： | 环境保护部南京环境科学研究所国家环境保护农药环境评价与污染控制重点实验室,江苏南京,210042 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2008ZX07101-006-05); 江苏省“333高层次人才培养工程”科研项目 |
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| 摘 要： | 借助加速溶剂提取、凝胶渗透色谱净化和液相色谱测定方法,研究了南京和南昌两地稻田施用w为10%的恶唑酰草胺乳油后,其有效成分恶唑酰草胺在稻田中的残留及消解动态。结果表明,恶唑酰草胺在水稻植株、稻田土壤及稻田水中的消解较快,在南京和南昌两地水稻植株中的消解半衰期分别为3.5和2.2 d,在稻田土壤中的消解半衰期分别为11.7和20.2 d,在稻田水中的消解半衰期分别为1.3和2.3 d。在稻田中按照最高推荐剂量和最高推荐剂量的2倍施用恶唑酰草胺乳油,施药1次,在收获的稻秆、稻壳、糙米及稻田土壤中均未检出恶唑酰草胺。这说明恶唑酰草胺为低残留、易降解农药。
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| 关 键 词： | 恶唑酰草胺 稻田 降解 残留 |
Residue and Degradation of Metamifop in Paddy Field |
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| KONG De-yang,SHI Li-li,SHAN Zheng-jun,WU Wen-zhu.Residue and Degradation of Metamifop in Paddy Field[J].Journal of Ecology and Rural Environment,2011,27(5). |
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| Authors: | KONG De-yang SHI Li-li SHAN Zheng-jun WU Wen-zhu |
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| Institution: | KONG De-yang,SHI Li-li,SHAN Zheng-jun,WU Wen-zhu(Key Laboratory of Pesticide Environmental Assessment and Pollution Control,Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection,Nanjing 210042,China) |
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| Abstract: | Field experiments were conducted in Jiangxi and Jiangsu Provinces,separately,of spraying metamifop(10% emulsifiable solution) in paddy fields to explore dynamics of metamifop residues in the paddy fields with the accelerated solvent extraction(ASE),gel permeation chromatography(GPC) and high performance liquid chromatography(HPLC) methods.Results show that metamifop degraded quickly in the plant and water,but not so in the soil.The half-life of metamifop in plant,water and soil was approximately 3.5 and 2.2... |
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| Keywords: | metamifop paddy field degradation residue |
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