供试直播稻田以稗草为优势种，伴生水苋菜、异型莎草、陌上菜等。拜田净 50％可湿性粉剂用量为 250～ 300 g/hm2，使用适期为水直播稻播后 6～ 8 d(稗草 1.5叶期 )，以喷雾为主，如稻田有薄水层也可加细土或化肥拌种撒施。防除稗草药后 15 d，校正防效为 90.4％；药后 28 d，校 The test broadcast rice field with barnyardgrass as the dominant species, associated with amaranth, Shaped sesame, street food and so on. Wadam net 50% wettable powder dosage of 250 ~ 300 g / hm2, the use of water suitable for direct seeding 6-8 days after sowing (1.5-leaf stage of barnyard grass) to spray-based, such as the paddy has a thin layer of water also Can add fine soil or fertilizer dressing spread. 15d after the control of barnyard grass, the correct control effect was 90.4%; 28d after school