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苄嘧磺隆（農得時、稻無草）為磺酰脲類選擇性內吸傳導型除草劑，最先用於稻田防除莎草和闊葉雜草，目前已登記用於麥田防除闊葉雜草。防除田間豬殃殃、繁縷、大巢菜等闊葉雜草，宜在雜草2-3葉期每畝用10%苄嘧磺隆可濕性粉劑30-40kejiashuipenwu。xiaomaikaishibajieshizacaocaolingyipianda，chucaoxiaoguoxiangduijiaocha，tebieshiyouxiedifangmaitianzhongdezhuyangyangyiduibenhuanglongdenghuangxianniaoleichucaojichanshenglejiaoqiangdekangyaoxing，shiyongbianmihuanglonghuachufangxiaogengchaxie。xiaomaibajiehouyibanbuyizaishiyongchucaoji，fouzekenengchanshengyaohai，danbianmihuanglongduihebenkezhiwuchanshengyaohaidekenengxingxiangduijiaoxiao，zaixiaomaibajiehoushiyongbuhuiduimaimiaoyoutaidayingxiang。conghuachuxiaoguoheduimaimiaodeanquanxingdengfangmiankaolv，xiaomaibajiehoushiyongshitalong、快滅靈等除草劑相對安全些（這些除草劑也應盡量在小麥拔節初期施用，推遲施用一方麵可能對小麥產生藥害，另一方麵草害損失較大），而且這些藥劑殘留期很短，不會對後茬作物產生不良影響。
苄嘧磺隆殘效期較長，在黏土中半衰期4-20周，在水中半衰期4-6天。春季在小麥田正常施用苄嘧磺隆（一般每畝用3-4克純藥），daobozaihouchazuowushuidaoshiturangzhongdeyaowucanliuliangbuhuitaiduo。bianmihuanglongjinrushuidaotinei，kebeidaixiefenjieweiwuhuoxingdehuahewu，yinerduishuidaoanquanxinghenhao，keyiyongyushuidaoyangtianhezhibodaotiandenggezhongshuidaotian，yibanzaiboqianzhibohou3周內施藥，每畝用1-2克純藥。麥田春季用苄嘧磺隆化除不會對後茬直播的水稻產生不良影響。
