我市油菜种植面积常年在15～20万亩左右,由于杂草危害较重,产量常常低而不稳,尤其是直播油菜,如出苗后一个月内不及时中耕除草,常导致草盖苗,甚至重耕改种。近年来虽大面积推广使用丁草胺,吡氟禾草灵等化学除草剂,但这些药剂对牛繁缕、雀舌草等阔叶杂草的防效较差,因此在油菜生长中后期,农户用于拔草的时间每亩至少7～8工。针对这一情况,我们于1987年试验了敌草胺,结果证明敌草胺不仅杀草谱广,而且对油菜十分安全,并取得显著的增产效果,深受农户欢迎。现将结果整理如下,供生产上参考。 Rape acreage in our city perennial in 15 to 20 acres, due to heavy weeds harms, the yield is often low and unstable, especially live rapeseed, such as within one month after emergence of not timely cultivation of weeds, often lead to grass cover seedlings, Even heavy farming to species. Although large-scale promotion of the use of butachlor, fluazifop and other chemical herbicides in recent years, but these agents on the control of broadleaf weeds, such as chickweed, Buxus, weeds less effective, so in the late rape growth, Farmers spend at least 7 to 8 workers per mu for drawing time. In view of this situation, we tested the herbaceous amine in 1987, the results prove that not only herbicides to kill grass broad spectrum, but also very safe for rapeseed and achieved significant yield increase, welcomed by farmers. The results are now organized as follows, for the production of reference.