| 毒死蜱在设施青菜上的残留动态及安全使用技术 |
| |
| 引用本文： | 王道泽,宋亮,洪文英,吴燕君,洪奎贤.毒死蜱在设施青菜上的残留动态及安全使用技术[J].浙江农业学报,2011,23(2). |
| |
| 作者姓名： | 王道泽 宋亮 洪文英 吴燕君 洪奎贤 |
| |
| 作者单位： | 1. 杭州市植保土肥总站,浙江杭州,310020
2. 杭州市农业科学院,浙江杭州,311101 |
| |
| 摘 要： | 为评价毒死蜱在设施栽培青菜上使用后的残留行为及环境安全性,采用田间试验和气相色谱分析法,研究设施栽培条件下毒死蜱在青菜中的消解动态和最终残留情况,并以残留分析结果为依据,调整实际生产中的用药模式,探索最适的安全间隔期.结果表明,毒死蜱在青菜上的残留消解动态符合一级动力学方程,降解半衰期为1.161～1.438 d;设施栽培青菜巾毒死蜱残留风险与田间用药剂量正相关,随着施药剂量的增加,消解速度减慢,残留量增大;设施栽培条件下,按常规使用剂量及施药方法,施药1次的情况下,毒死蜱在青菜上采收安全间隔期应延长至14 d,产品质量水平才符合我国国家标准规定的MRL要求.建议蔬菜生产过程中加强对毒死蜱使用用量及停药期的控制或用易降解的生物农药替代.
|
| 关 键 词： | 毒死蜱 设施栽培青菜 残留 消解动态 安全使用技术 |
Residual dynamics and safe applying technology of chlorpyrifos in pakchoi under greenhouse conditions |
| |
| WANG Dao-ze,SHONG Liang,HONG Wen-ying,WU Yan-jun,HONG Kui-xian.Residual dynamics and safe applying technology of chlorpyrifos in pakchoi under greenhouse conditions[J].Acta Agriculturae Zhejiangensis,2011,23(2). |
| |
| Authors: | WANG Dao-ze SHONG Liang HONG Wen-ying WU Yan-jun HONG Kui-xian |
| |
| Institution: | WANG Dao-ze1,SHONG Liang2,HONG Wen-ying1,WU Yan-jun1,HONG Kui-xian1(1Hangzhou Plant Protection and Soil-fertilizer Station,Hangzhou 310020,China,2Hangzhou Academy of Agricultural Sciences,Hangzhou 311101,China) |
| |
| Abstract: | To determine the changes in residue and environmental safety of chlorpyrifos application on pakchoi under greenhouse conditions,the residue dynamics and final residues of chlorpyrifos in pakchoi was studied by the methods of gas chromatography and field experiment.Meanwhile,a safe application method of the insecticide was explored to provide a guideline for application of chlorpyrifos in field,and to refine and update the residue data while helping to determine the harvest interval.The results showed that t... |
| |
| Keywords: | chlorpyrifos greenhouse pakchoi residue degradation dynamics techniques for safe use |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
