83—1是四川化工研究所研制成的一种选择性除草剂。对防除麦田杂草猪秧秧有特效,对十字花科,茜草科等阔叶杂草也有良好的防除效果。我县1986年春季,在小麦拔节时进行田间试验表明;以亩用83—1(50％可湿性粉剂)100克和2,4—D丁酯(72％乳剂)40克混用防效最佳,平均防效达92.5％,杂草鲜重减少87.9％,保产效果达(除20％保险系数)14.5％以上。 83-1 is Sichuan Institute of Chemical Technology developed a selective herbicide. On the prevention and control of wheat weed piggy seedling have special effects, cruciferous, Rubiaceae and other broadleaf weeds also have good control effect. In the spring of 1986 in our county, field experiments were conducted at the jointing stage of wheat; the best combination of 100 g of mu 83-1 (50% wettable powder) and 40 g of 2,4-D butyl ester (72% emulsion) , The average control effect reached 92.5%, weed fresh weight decreased 87.9%, the effect of yield (up to 20% insurance factor) 14.5%.