通过田间小区及大区对比试验的结果表明,40%乙草胺(Acetochlor)+扑草净(Prometryne)EC,对玉米田多种杂草,如稗草、马唐、狗尾草、鸭跖草、藜、铁苋菜等均有特效,防除效果稳定在90%以上。在杂草基数低于200株·m-2的地块,用药量为3000mL·hm-2,超过200株·m-2的地块,用药量为3750~4500mL·hm-2,施药时期为播种后5~9d。该除草剂对玉米安全、无药害,且不影响下茬作物生长。 The results of field trials and field trials showed that 40% Acetochlor + Prometryne EC was effective against a variety of weeds in corn fields such as barnyardgrass, crabgrass, Setaria viridis, Commelina communis, Pigment, iron amaranth, etc. have special effects, prevention and control of stability in more than 90%. In the plots with weed base less than 200 plants · m-2, the dosage was 3000mL · hm-2, more than 200 plants · m-2, the dosage was 3750 ~ 4500mL · hm-2, 5 ~ 9d after sowing. The herbicide is safe and harmless to corn and does not affect the crop growth.