【摘要】 为明确53%2甲4氯·苄嘧磺隆·唑草酮水分散粒剂对小麦田阔叶杂草的防除效果和对小麦的安全性,于小麦返青后采用茎叶喷雾施药,定期调查杂草防效及其对小麦安全性的影响。结果表明,53%2甲4氯·苄嘧磺隆·唑草酮水分散粒剂适宜用量为159.00～238.50 g a.i./hm~2,药后40 d对杂草总体株数防效为84.85%～89.52%,鲜重防效为91.46%～93.85%。53%2甲4氯·苄嘧磺隆·唑草酮水分散粒剂对小麦田阔叶杂草有很好的防除效果,且对小麦安全。更多还原

【Abstract】 The efficacy and selectivity of MCPA·bensulfuron-methyl ·carfentrazone-ethyl 53% WG against broadleaf weeds in wheat were characterized after applying the formulated mixture at the time crop plants were turning green. Results indicate that the proper dose of MCPA·bensulfuron-methyl ·carfentrazone-ethyl 53% WG was 159.00～238.50 g a.i./hm~2. The achieved level of control was 85%～90% and 91%～94% based on plant density and fresh weight,respectively,at 40 days after spraying. Efficacy of MCPA·bensulfuron-methyl ·carfentrazone-ethyl 53% WG was excellent and the herbicide was safe to wheat.更多还原