【摘要】 为了解甲基对硫磷在小白菜上的降解动态及最终残留量,指导该农药的使用,给安全食用小白菜提供科学依据,该试验在银川郊区银新乡农户的温室菜棚中进行.喷药后第零天,第一天,第二天,第三天,第五天,第七天,每天分别取样,用气相色谱法分析测定甲基对硫磷在小白菜上的残留量,得出甲基对硫磷残留量(Y)与时间(t)的关系.实验结果表明,甲基对硫磷在小白菜上半衰期为2.91天;喷药后第七天,在小白菜中未检出甲基对硫磷的残留.更多还原

【Abstract】 This paper focuses on understanding the degradation of Methyl parathion in Chinese cabbage. The experiment has been done under the condition of greenhouse. The results show that the half of decay time of Methyl parathion in Chinese cabbage is 2.91days. The residues of methyl parathion have not been detected in seven days when it is used.更多还原