低芥酸油菜在我县生态环境条件下具有很好的适应性、抗性和增产效果.然而,连续四年的试验证明:草害是发展低芥酸油菜生产的主要障碍之一.为了摸清杂草危害规律,寻找可行的防治措施,我所在1985～1986年和1986～1987年度进行不同除草剂不同浓度的杀草效果试验. Low-erucic acid rape has good adaptability, resistance and yield-increasing effect in the ecological environment of our county.However, for four years in succession, it has been proved that grass canopy is one of the major obstacles in the development of low erucic acid production.In order to touch Weed law of endanger the law of weed and look for the feasible prevention and cure measure, my place is from 1985 to 1986 and from 1986 to 1987 different herbicide different concentration grass kill effect test.