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不同类型除草剂可以混用。除草剂混用可扩大杀草谱,提高用药安全性,减少药物残留,降低生产成本,提高经济效益。但混用除草剂必须掌握以下几点:两种除草剂的除草范围应有所不同;速效药剂应与迟效药剂搭配;长效药剂与短效药剂相配;触杀型药剂和内吸传导型药剂相配;在土壤中扩散性、移动性大的药剂与扩散性、移动性小的药剂相配;药剂混用应有增效作用,至少不能相互拮抗,或对农作物产生药害;两种药剂的使用时期和使用方法必须吻合。 混用除草剂时对除草剂品种的选择和各种药剂的用量,应根据田间杂草群落、土壤质地等情况确定,随配随用。两种药剂混用,各自的用量多为单独使用量的1/3～1/2。同时要求药剂在混配后不发生化学反应;没有沉淀、分层现象。
Different types of herbicides can be mixed. Mixture of herbicides can be expanded to kill herbicide spectrum, improve drug safety, reduce drug residues, reduce production costs, improve economic efficiency. However, we must grasp the following mixed herbicides: two herbicides weeding range should be different; quick-acting agents should be used with late-acting agents; long-acting agents and short-acting agents match; ; In the soil diffusibility, mobility of the agent and diffusive, mobility of small agents match; mixed agent should synergistic effect, at least not antagonistic, or crop injury; the use of two agents and Use method must match. Mixed herbicides on the choice of varieties of herbicides and the dosage of various agents should be based on field weed community, soil texture and other circumstances identified, with the use of. Two kinds of medicaments are mixed, the dosage of each is more than one-third to one-half of the amount used alone. At the same time require chemical agents in the mixture does not occur after the chemical reaction; no precipitation, stratification.