Florasulam is a sulfonamide herbicide and a typical inhibitor of acetyllactate synthase. It has high selectivity for wheat crops and lawn, and can be widely used in winter wheat, winter wheat, spring wheat, spring barley, lawn, onion, grassland, pasture and so on. Difluorosulfonamide is mainly used to control broad-leaved weeds in winter wheat field after seedling, such as pig plague, Zoysia, Polygonum weeds, Compositae weeds, etc. It is also a broad-spectrum weeding wattle for stem and leaf treatment after seedling to control broad-leaved weeds. 5g per hectare can effectively control the weeds of carnation, Qian forage, Convolvulaceae, Malvaceae and Polygonaceae.