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韭菜生育期较长,播种后幼苗生长缓慢,地面裸露适于杂草生长。靠人工除草十分困难,且拔草时易伤韭根。1987年,我们在铁山镇北四队应用50％“扑草净”在韭菜育苗田,进行化学除草,每亩用药100克,对水50—75公斤,于播种后出苗前地面喷雾,效果很好。对单子叶杂草防效达95.3％,对双子叶杂草防效达99.2％,平均防效97.25％。又经实验,在韭菜生育期间,在杂草萌发前用药除草效果也非常明显。
Leek longer period of growth, seeding seedlings grow slowly, bare ground suitable for weed growth. Weeding by artificial is very difficult, and easy to hurt when pulling the leek roots. In 1987, we applied 50% “prometryn” in the northern part of Tieshan Town to leek nursery field for chemical weeding, 100 grams per mu and 50-75 kilograms of water, spraying on the ground before emergence after sowing well. 95.3% against monocotyledonous weeds and 99.2% against dicotyledonous weeds, with an average of 97.25% control. Again experiment, during the period of Chinese chives, weeding herbicide effect is very obvious before weed germination.