答:经开原县八宝公社友谊大队试验证明:“禾大壮”是防除一年生 禾本科杂草的理想除草药剂,尤其防除稻田稗草有特效,并兼治牛毛草。本田施用96％“禾大壮”乳油除稗,每亩用药4.5～5两,加清水80～100斤,均匀泼施保有水层的田面。据田间观察,施药后10天,3～4片叶 A: The trial of Friendship Brigade of Babao Commune in Kaiyuan County proves that “Wo Dazhuang” is an ideal herbicide for controlling annual grass weeds. In particular, it has the special effect of controlling barnyardgrass in paddy fields, and also treats the ox hair grass. Honda use 96% “Wo Dazhuang” EC except barnyard, 4.5 ~ 5 mu per acre two, add water 80 ~ 100 pounds, even pour the water to keep the field surface. According to field observations, 10 days after application, 3 to 4 leaves