This product is a selective systemic herbicide. The active ingredients can diffuse rapidly in water, be absorbed by the roots and leaves of weeds and transferred to all parts of the weeds, hindering the biosynthesis of amino acids, lysine and isoleucine, and preventing cell division and growth. The growth function of sensitive weeds is hindered, the young tissues turn yellow prematurely, inhibit the growth of leaves, and hinder the growth of roots and cause necrosis. It has little mobility in the soil, and tempera