广灭灵是美国ＦＭＣ公司８０年代中期研究并开发的广谱性、选择性除草剂。它的制剂有４８ %乳油、３６ %微乳剂。该药剂是杂草萌前除草剂 ,通过杂草的根系与芽梢吸收 ,经木质部输导至叶部 ,抑制叶绿素和胡萝卜素的合成 ,而形成白苗、枯死。本产品杀草谱广 ,同时防除多种禾本科 Broad Extinguishant is a broad-spectrum, selective herbicide researched and developed by American FMC company in the mid-1980s. It is formulated with 48% EC, 36% microemulsion. The medicament is a weed preemergence herbicide, which is absorbed by roots and shoots of weeds and is led to the leaf parts by the xylem, inhibiting the synthesis of chlorophyll and carotene, and forms white seedlings and dies. This product to kill grass broad spectrum, while controlling a variety of grasses