黑麦草草坪杂草防除的药剂试验

利用3种除草剂对黑麦草草坪的主要杂草进行了药效试验,结果表明在供试的三种药剂中,环草隆WP对禾本科杂草和阔叶杂草的除草效果优良,在21d、26d、31d施药后对禾本科杂草平均防效分别为57.6%、59.7%和63%,在对阔叶杂草分别为100%、98%和95.4%;在31d对禾本科和阔叶杂草的鲜重防效是94.3%和99.4%。研究表明环草隆在黑麦草草坪杂草防除中最有应用价值。

Drug-efficiency Experiment on Weeds Control of Ryegrass Lawn

The drug-efficiency experiment on control of the main weeds in ryegrass lawn was carried out using three kinds of herbicides.The results showed that the control effects of Siduron WP were excellent to grassy weeds and broadleaf weeds.The efficiencies were 57.6%,59.7% and 63% on 21st day,26th day and 31st day respectively against the grassy weeds,and the efficiencies were 100%,98% and 95.4% on this condition against the broadleaf weeds.Moreover the efficiencies in fresh weight were 94.3% and 99.4% against the grass and broadleaf weeds respectively on 31st day.In conclusion Siduron is the best choice among these herbicides on the weed control of ryegrass lawn.