不同药剂防除黄帚橐吾对草地植被的影响研究

STUDY ON INFLUENCE OF APPIYING HERBICIDE TO CONTROL LIGULARIA VIRGAUREA ON GRASSLAND VEGETATION

应用不同药剂在高寒牧区对草地黄帚橐吾(Ligularia virgaurea)进行了药剂筛选试验。结果表明,施药后,迈士通和清橐1号防治效果均达到85%以上,并对草地植被群落及地上生物量均有明显影响,但从经济、有效、安全的角度考虑,清橐1号用药量1800m L/hm^2施药当年较为理想。

The different herbicides were used to screening test contro1 Ligularia virgaurea in Alpine Region. After spraying herbicide the result showed that the effect to control Ligularia virgaurea of NO.1 Qingtuo and Milestone were achieved over 85%,and were a significant to grassland vegetation community and aboveground biomass. But we considered from the perspective of economy,control effect and safety.NO.1 Qingtuo was more ideal at the doses of 1800 m L/hm^2 treatment area in the spraying year.