园林草坪化学除草试验

Weeding results of some herbicides on chomophyte in lawn

为清除园林草坪杂草 ,寻求安全高效的园林草坪除草剂 ,在马蹄金、葱兰和麦冬草坪上用 2 3 5%果尔乳油、 1 8 2 %田草净可湿性粉剂、 50 %丁草胺颗粒剂和 50 %杀草丹乳油加水喷雾或拌土撒施 ,除草率为 75 45%～ 92 1 9%。其中以 1 8 2 %田草净可湿性粉剂0 0 396g·m- 2 加土 45g撒施后用清水湿床 ,或用 2 3 5%果尔乳油 0 1 2mL·m- 2 加土 45g撒施 ,除草率分别达 92 1 9%和 88 43% ,节省除草成本 81 33%和 78 88%。草坪生长良好。表 3参

In order to control the chomophyte in lawn and test the safety of herbicides on turfgrass,herbicides(Goal 23 5EC,Tiancaojing(Acetochlort Bensulfuron menthyl) 18 2wp,Butachlor 50MG and Benziocarb 50EC)were applied with spraying or broadcasting on Dichondra repens,Zephyranthes candida and  Ophiopogon japonicus turfgrass during the establishment of lawn.The results showed that Tiancaojing(Acetochlort Bensulfuronmenthyl) 0 039 6 g·m -2 mixed with soil 45 g or Goal 0 12 mL·m -2 mixed with soil 45 g had a good control result for weeds with efficiency of 92 19% and 88 43%,and made a reduction of 81 13% and 78 80% in the costs,respectively.For other two herbicides,weeding rate reached over 75 00% too.After herbicide application,the lawn grew well.