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中国农学通报 ›› 2009, Vol. 25 ›› Issue (1): 185-189.

所属专题: 园艺

• 植物保护 农药 • 上一篇    下一篇

毒死蜱在苹果果实、叶片及果园土壤中的残留分析研究

张金虎   

  • 收稿日期:2008-10-07 修回日期:2008-11-21 出版日期:2009-01-05 发布日期:2009-01-05

Residue determination of chlorpyifos in apple fruit,leaf and orchard soil

  • Received:2008-10-07 Revised:2008-11-21 Online:2009-01-05 Published:2009-01-05

摘要: 通过降解动态试验和最终残留量试验,研究了毒死蜱在苹果果实、叶片及树下土壤中的残留降解规律。结果表明,毒死蜱在苹果不同部位中的残留主要集中在果皮部分;在推荐浓度和使用次数下,毒死蜱在果实中的半衰期为24.50d,最低检测限量为0.012 mg/kg;毒死蜱在果实、叶片和土壤中的残留量与试药量和次数有关;毒死蜱的残留量与时间有函数关系,随着时间的增加,残留量逐渐减少,整个消解过程呈负指数函数变化;毒死蜱降解速率:叶片>果实>土壤,最终残留量:果实>土壤>叶片。

关键词: 观赏植物野生资源, 观赏植物野生资源, AHP, 评价体系

Abstract: Experiment was conducted to investigate the residual dynamic of chlorpyrifos of ‘Gala’ apple’s fruit, leaf and soil in orchard by GC-TSD. The results showed that the pesticide residues was greatest in peel; chlorpyrifos half life of apple was 24.50d at the recommended concentration and times, the limit of determination was 0.012mg/kg; pesticide residue was related to concentration and times, there was a negative exponential function in dissolution process in the interval; the rate of residual dynamic of chlorpyrifos was leaf>aplle>soil, ultimately pesticide residue was aplle>soil>leaf.

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