摘要
采用气相色谱法测定不同生长期油菜中对硫磷的残留和降解动态情况。试验结果表明，以体积浓度为800mL／L的对硫磷处理苗期、抽薹期和花期三个生长时期的油菜，得出对硫磷在油菜上的残留半衰期为23．05-25．85h，在施药120h后对硫磷在油菜上三个时期的消解率均达到90％以上，三个不同生育时期中对硫磷的消解规律无显著差异。
Residue and degradation of parathion in rape at seedling, bolting and flowering stages were investigated by gas chromatography. The results showed that the half life of the degradation of parathion in rape were 23.05 25.85 h. The degradation rates of parathion sprayed on rape more than 90%o after 120 hours. Degradations dynamics of parathion applied on rape in three stages were no difference.
出处
《北京农学院学报》
2006年第2期51-53,共3页
Journal of Beijing University of Agriculture
基金
北京市教委和科学技术委员会以及农业应用新技术北京市重点实验室资助
关键词
对硫磷
油菜
残留
降解
degradation dynamics residue parathion rape
