小麦穗期主要使用药剂农药残留超标风险探析

Research on Risk of Main Fungicide Residues in Wheat Earing Stage

为了解小麦穗期主要施用农药残留超标的风险，选取了50％多菌灵可湿性粉剂、25％氰烯菌酯悬浮剂、40％戊唑·多菌灵悬浮剂、50％多菌灵悬浮剂、30％戊唑·福美双可湿性粉剂在小麦穗期用药1～3次，考察其最终残留量。试样验结果表明，施用多菌灵的处理，不同的用药次数、用药剂量，小麦籽粒中均能检测出多菌灵残留，而氰烯菌酯、戊唑醇、福美双均为未检出。

In order to investigate the risk of fungicide residue exceeding maximum residue limit, the field trials were carried out with carbendazim 50% WP, phenamacril 25% SC, tebuconazole ＋ carbendazim 40% SC, carbendazim 50% SC,tebuconazole ＋ thiram 30% WP in wheat earing stage by spraying one time, two times or three times, respectively. The results showed that carbendazim were detectable in wheat, but phenamacril, tebuconazole, thiram were non-detectable.