This is a sulfonylurea herbicides. Inhibit plant acetolactate enzyme (ALS) synthesis, blocking side chain amino acid biosynthesis, thereby affecting cell division and growth. The product of sugar beet fields controlling many broadleaf and grass weeds, and post-emergent herbicide is safe, according to the administration of twice the recommended dosage, the beet is still very safe, leaf beet in l ~ 2 or more the DT50 <6h. add non-ionic surfactants or vegetable oils help to improve their mutual solubility, and enhance the activity. recommended dosage is 10 ~ 25g (ai) / ha, and adding a surfactant from 0.05% to 0.25% (by volume) active agent or 0.5 to 1.0 (by volume) of vegetable oil.