几种三氮苯类除草剂的除草效果比较及对作物的安全性评价

通过室内生物测定，研究了几种三氮苯类除草剂对几种杂草防治效果和对作物的安全性。结果表明，40％莠去津悬浮剂O．04ga．i．／hm^2对牵牛防治效果最好；50％赛克津可湿性粉剂O．04ga．i．／hm^2对稗草和茼麻防治效果最好：50％氰草津可湿性粉剂200g／667m。对玉米和棉花安全性较高．在土壤处理时50％阿灭净可湿性粉剂200g/亩对花生、大豆有较高安全性。

Weed Control of Several Triazine Herbicides and Safety to Crops

Weed control effect of several triazine herbicides and safety to crops were studied in bioassay trials during the emergence period. The results showed that pharibilis nill was effectively controlled by 40% atrazine SC at the dose of 0.04 g a.i./hm^2. barnyardgrass and abutilon theophrasti were most effectively controlled by 50% metribuzin SC at the dose of 0.04 g a.i./hm^2. 50% cyanazine WP had better effect to corn and cotton at the dose of 200 g/667 m^2 than other herbicides. 50% ametryn WP had better effect to earthnut and soja when these herbicides were soil-applied.