1.选择品种。根据园田杂草发生的种类和除草要求,分类用药。如以一年生浅根性杂草为主的园田,宜选用甲草胺进行土壤处理,而以多年生深根性杂草为主的园田,应选用输导型除草剂草甘磷进行茎叶处理,才能使杂草地上地下同时被杀死。 2.适期施用。一般杂草种子刚萌发的幼芽和幼苗期对药剂反应敏感,是防除的最适期,可收到用药少、防效高的良好效果。 Choose a variety According to the type of field weeds and weeding requirements, classification medication. For example, the annual field shallow root weeds mainly garden, should use alachlor for soil treatment, and perennial deep-rooted weeds in the garden, we should use the guide herbicide glyphosate stems and leaves treatment, in order to make Weeds on the ground at the same time be killed. 2. Appropriate application. Generally weed seed germination of young buds and seedlings sensitive to the drug reaction is the most appropriate period of control, can receive less medication, good effect of good effect.