是西德巴斯夫公司生产的除草剂,其有效成分为苯达松,乃是一种液体制剂,在稻田中可用于苗后防除阔叶杂草及莎草科杂草。据1986年大面积试验、示范,排草丹防除碎米莎草、野慈姑、鸭舌草可达100％,防除恶性杂草三棱草可达99％以上。排草丹的作用方式为触杀,当杂草与它相互接触时,它的有效成分主要通过植物的绿色部分被吸收,才能将杂草杀死。因 Is the herbicide produced by West Germany BASF, the active ingredient of which is bentazon, a liquid formulation that can be used in paddy fields to control broad-leaved weeds and sedge weeds. According to a large area of ​​1986 experiments, demonstrations, rowing Dan defense Mesa grasses, wild arrowheads, Monumental grass up to 100%, the control of weeds can reach more than 99% The role of the lawn grass to touch and kill, when weeds and it contact with each other, its active ingredient is mainly absorbed through the green part of the plant, weeds can be killed. because