论文部分内容阅读
为了准确地把握保护性耕作冬麦田化学除草施药适期,确定有效防除方案,为其防除提供理论依据和技术支持,分别在春季冬小麦返青早、中、晚期对保护性耕作的冬麦田杂草进行了茎叶用药试验。结果表明,返青中期用75%苯磺隆WJ 1.5 g/667m2株防效可达90%以上,鲜重防效可达95%以上,10%苯磺隆WP 15 g/667m2株防效在80%以上,鲜重防效可达90%以上。
In order to accurately grasp the appropriate period of chemical herbicide application in conservation tillage winter wheat fields, and to determine effective control programs to provide a theoretical basis and technical support for its prevention and control, respectively, in winter spring wheat return green early, middle and late conservation tillage winter wheat weeds Stem and leaf medication test. The results showed that the control efficacy of WJ 1.5 g / 667m2 with 75% tribenuron-methyl was more than 90% in mid-rejuvenation period, and the fresh weight was more than 95%. The control efficacy of 10% triasulfuron WP 15 g / 667m2 was 80% % Or more, fresh weight control effect of more than 90%.