化学除草是目前防除杂草的一种重要手段。不仅成本低、省工、增产,而且经济效益高,因此,深受广大农民的欢迎。由于化学除草剂是一种有毒的化学物质,所以一旦使用不当,不但会降低除草效果,反而会对农作物、人、畜以及环境造成危害和污染。为了提高化学 Chemical weeding is an important method to control weeds. Not only low cost, labor-saving, increase production, but also high economic efficiency, therefore, welcomed by the majority of farmers. Because chemical herbicide is a toxic chemical, once used improperly, it will not only reduce the weeding effect, but will cause harm and pollution to crops, people, livestock and the environment. In order to improve chemistry