不同药剂对台湾草草坪杂草的防除效果研究

Control Effect of Different Agents on Taiwan Grass(Zoysia tenuifolia Willd.ex Trin.)Turf

为了探讨台湾草草坪杂草的化学防除措施,根据所选草坪的杂草种类,选用20%二甲四氯、20%使它隆乳油、绿宝、海正绿坊4种化学除草剂进行试验。结果表明院防除杂草效果最差的是药剂20%二甲四氯,其杂草死亡率为60%～70%,对草坪草本身也存在较大的危害,20 d后草坪草仍不能恢复健康生长;防除效果最好的是药剂海正绿坊,其杂草死亡率达90%以上,20 d恢复生长后,草坪草叶色与对照无差异且长势旺盛,可推荐作为台湾草草坪杂草化学防除除草剂。

In order to discuss chemical control methods of weeds in Taiwan grass （Zoysia tenuifolia Willd.ex Trin. ）turf, the chemical herbicide named 20% 2-methyl-4-chlorophenoxy acetic acid, 20% Acetic acid, Lubao and Haizbenglufang were selected to study the implementation effect in the turf according to weed species.The result showed that the worst implementation effect was chemical herbicide named 20% 2-methyl--4-chlorophenoxy acetic acid.By this way,the weeds mortality were 60%-70%, the larger damage was also caused on the turf itself and the turf couldn＇t restore health growth after twenty days.The best implementation effect was chemical herbicide named Haizhenglufang by which the weeds mortality were more than 90%, and the leaf color and health growth of turf was the same with contrast check turf after twenty days,it would be a chemical herbicide for Taiwan grass tuff.