51%烟嘧.莠去津作为玉米田苗期茎叶处理剂,在玉米4~6叶期施用,用量为1 500~1 875 g/hm2,可以有效防除马唐、稗草、马齿苋、反枝苋等一年生禾本科杂草和阔叶杂草,同时兼除多年生杂草香附子,一次用药基本控制玉米全生育期草害,对玉米安全,除草增产效果显著。 51% nicotine.Atrazine was used as the stem and leaf treatment agent at the seedling stage of corn field and applied at 4 ~ 6 leaf stage of corn with the dosage of 1 500 ~ 1875 g / hm2, which could effectively control crabgrass, barnyardgrass, purslane, Amaranthus retroflexus and other annual grass weeds and broadleaf weeds, as well as the addition of perennial weeds Cyperus rota, a single medication basically control corn grass during the whole growth period, the safety of corn, herbicides yield significant results.