长效除草剂是一种新型林用除草剂，试验表明，使用适量时，可显著降低草覆盖度、密度、草鲜重和草高度。是开设、修复林地防火道的理想药剂。采用拌土撒施法施药，便于无水源地区应用 Long-acting herbicide is a new type of herbicide for forestry. Experiments show that the grass coverage, density, grass weight and grass height can be significantly reduced with moderate amount of herbicide. Is to create, repair forest fire prevention ideal agent. Adopt the method of mixing soil to disperse and apply medicine, it is convenient to apply in the area without water source