It is a selective systemic herbicide. The agent rapidly spreads in the water and is absorbed by the roots and leaves of the weed and then transferred to other sites, hindering the biosynthesis of branched-chain amino acids. Sensitive weed growth is hindered, yellowing of young tissues is premature, and leaf and root growth is inhibited. It can effectively control the 1-year-old and perennial broad-leaved weeds and sedges in paddy fields and can be absorbed by roots and leaves of weeds and spread to other parts. For rice safety, use methods are flexible.