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使用除草剂要贯彻预防为主、安全第一的方针。一般说,作物一旦发生除草剂药害就很难挽救。因此,要严格掌握除草剂的安全使用技术。一、正确选用除草剂目前,施用的除草剂有上百个品种,在药剂成分上有无机、有机和生物除草剂之分;在剂型上有水剂、粉剂、乳油、颗粒剂几种;在杀草机理上又分为选择性除草剂和灭生性除草剂等。由于不同除草剂的性质各有不同,在选用除草剂时必须掌握三个要点:一是要了解
The use of herbicides to implement the principle of prevention first, safety first. In general, it is hard to save a crop once a herbicide has been applied. Therefore, we must strictly control the safe use of herbicides technology. First, the correct choice of herbicides At present, the application of herbicides have hundreds of varieties, in the pharmaceutical composition of inorganic, organic and biological herbicides points; in the formulations of a liquid agent, powder, cream, granules several; in Grass-cutting mechanism is divided into selective herbicides and biocidal herbicides. Due to the different nature of different herbicides, the selection of herbicides must master the three main points: First, we must understand