近几年来,由于水稻条纹叶枯病连续大发生,水稻直播作为避开水稻条纹叶枯病发生的有效措施,在苏北地区迅速扩大。而直播稻田草害是制约直播稻发展和夺取高产的主要障碍因子,在水稻落谷后,封杀田间杂草是解决稻田草害的一项关键技术,由于用药时稻谷正处于萌动发芽阶段,若此时除草 In recent years, direct rice blast as an effective measure to avoid the occurrence of rice stripe virus has rapidly expanded in northern Jiangsu due to the continuous occurrence of rice stripe blight. However, direct seeding of rice field is the main obstacle restricting the development of direct seeding rice and seizing high yield. After the rice landed, the weed control in the field is a key technology to solve the problem of paddy field. Because the rice is in the process of germination and germination, Weeding at this time