生态与农村环境学报 ›› 2007, Vol. 23 ›› Issue (4): 76-77.doi:

• 研究简报 • 上一篇    下一篇

敌草快在甘蔗及土壤中的残留动态

彭娟莹, 杨仁斌, 郭正元   

  1. 湖南农业大学环境保护研究所
  • 收稿日期:2006-12-04 出版日期:2007-10-25 发布日期:2011-07-06
  • 作者简介:彭娟莹(1981-),女,湖南株洲人,硕士生,主要从事环境污染检测与治理方面的研究。
  • 基金资助:

    农业部项目(NC-2005-721)

Dynamics of Diquat Residue in Sugarcane and Soil

PENG  Juan-Ying, YANG  Ren-Bin, GUO  Zheng-Yuan   

  1. Institute of Agro-Environmental Protection,Hunan Agricultural University
  • Received:2006-12-04 Online:2007-10-25 Published:2011-07-06

摘要: 对敌草快在湖南和海南甘蔗及土壤中的残留研究结果表明:(1)敌草快在湖南甘蔗苗和土壤中的半衰期分别为4.72和50.59 d;(2)敌草快在海南甘蔗苗和土壤中的半衰期分别为5.73和40.01 d;(3)在常规使用剂量下,湖南和海南甘蔗中敌草快的最终残留量均未检出,说明正常使用下食用甘蔗安全。

关键词: 敌草快, 甘蔗, 残留, 消解, 半衰期

Abstract: A GC method was used to determine degradation behavior and evaluate environmental safety of diquat in sugarcane and soils in Hunan and Hainan.Results show that the half-life of diquat in sugarcane and soil was 4.72 and 50.59 d,respectively,in Hunan,and 5.73 and 40.01 d,respectively,in Hainan.When diquat was applied at a recommended rate,residue of the effective component was much lower than 0.05 mg·kg-1,which ensures food safety of sugarcane.

Key words: diquat, sugarcane, residue, degradation, half-life

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