1.莠去津(阿特拉津)广谱性除草剂,可以防治多种一年生禾本科和阔叶杂草,对阔叶杂草的除草效果优于禾本科杂草。可于玉米播种前、播后苗前进行土壤处理,也可在苗后玉米3~4叶期、禾本科杂草1~2叶期、阔叶杂草3~4叶期进行茎叶处理,用40%悬浮剂150~200毫升/亩,黏土地和有机质含量高的土壤中加大剂量。土壤有机质对莠去津有较强的吸附作用,当土壤有机质含量超过6%时,由于用药量大而不经济,应改为苗后茎叶处理,时间在玉米3~5叶期,杂草2~3叶期,或用其它除草剂。苗后茎叶处理以200~270毫升/亩为宜。 Atrazine (atrazine) broad-spectrum herbicide, can control a variety of annual grass and broad-leaved weeds, broad-leaved weeds weeding better than weeds. The soil can be treated before sowing before sowing and before sowing after sowing. The stems and leaves can also be treated in 3-4 leaf stages of post-emergence corn, 1 to 2 leaf stages of grass weeds and 3 to 4 leaf stages of broad-leaved weeds, With 40% SC 150 ~ 200 ml / acre, clay and organic matter in the soil to increase the dosage. Soil organic matter has a strong adsorption of atrazine, soil organic matter content of more than 6%, due to the amount of large and uneconomical, should be changed to post-emergence treatment of stems and leaves, the time in the corn 3 to 5 leaf stage, weeds 2 ~ 3 leaf stage, or with other herbicides. Post-emergence foliar treatment to 200 ~ 270 ml / mu is appropriate.