据几年来试验结果证明,氟乐灵对稗草、狗尾草等禾本科杂草有很好防效,而对兰花菜、蓼、苍耳等阔叶草防除效果则不好,如果氟乐灵与2.4—滴混合使用,不但有效的防除禾本科杂草,而且对阔叶草也有很好的防除效果。 1979年我所从12个组合中,选择出2个比较好的组合,48％氟乐灵有效剂量1公斤+72％2.4—滴丁酯0.6或0.8公斤。1980年在全省五个地区爱辉、北安、同江、嘉荫、罗北、东宁、宝清、饶河、逊克等十个县的农科所及所内进行了中试,除宝清点落空 According to the test results over the years, trifluralin is very effective against gramineous weeds such as barnyard grass and foxtail grass, while the control effect on broadleaf grass such as orchids, cocklebur and cocklebur is not good. If trifluralin 2.4-drop mixed use, not only the effective control of grass weeds, but also have a good control of broad-leaved grass. In 1979, from 12 combinations, I chose two better combinations, 48% of the effective dose of trifluralin 1 kg + 72% 2.4-Dibutyl 0.6 or 0.8 kg. In 1980, a pilot test was carried out in agricultural institutes and institutes in ten counties of Aihui, Bei’an, Tongjiang, Jiayin, Luo Bei, Dongning, Baoqing, Raohe and Xunke in five districts of the province except Bao Qing empty point