春油菜华油杂62除草剂高效组合筛选研究

目的]筛选出适宜春油菜华油杂62田地化学除草的药剂及推荐用量.方法]对春油菜田进行杂草调查,并通过大田试验研究了几种化学除草剂对春油菜田杂草的防除效果.结果]通过杂草调查,油菜田以禾本科杂草与阔叶杂草混生为主,阔叶杂草种类较多.油菜田化学除草时,采用单一药剂处理很难达到预期效果,以2种药荆混用效果较佳.结论]生产中建议采用精喹禾灵＋胺苯磺隆为茎叶处理药剂,推荐用量25％胺苯磺隆150 g/hm^2＋ 10.8％精喹禾灵乳油600 ml/hm^2.

Screening of Efficient Herbicide Combination for Spring Rape Cultivate Huayouza 62

Objective] The aim was to screen out an efficient herbicide combination for spring rape cultivate Huayouza 62. Method ] The weeds in spring rape cultivate Huayouza 62 were investigated, and control effects of several herbicides on weeds in spring rape field were studied through field experiment. Result ] Weeds in spring rape field were mainly Gramineous weeds mixed with broad-leaved weeds, and broad- leaf weed species were more. In herbicide experiment of spring rape, using single drug treatment was very difficult to achieve the desired effect, while a mixture of two kinds of agents had better control effect against weeds. Conclusion] The combination of quizalofop-p-ethyl ＋ Etbametsulfuron-methyl was recommended as stem and leaf treating herbicide in production, and the recommended dosage was 25% Ethametsulfuron-methyl 150 g/hm^2 ＋ 10.8% quizalofop-p-ethyl EC 600 ml/hm^2.