近几年,江苏省水稻直播田面积逐年增加,由于水稻直播种子直接播在稻田土壤表层,而水稻的幼芽、幼根对除草剂较敏感,因此对水稻直播田封闭除草剂的选择已成为水稻生产需要解决的重要技术课题。由于适用于水稻直播田的封闭除草剂品种较少,造成江苏省水稻直播田普遍杂草危害严重,对水稻产量影 In recent years, the area of ​​direct seeding rice in Jiangsu Province has been increasing year by year. Since the direct seeding seeds of rice are sown directly on the surface layer of paddy soil, the young shoots and young roots of rice are more sensitive to herbicides. Therefore, the selection of closed herbicides for direct seeding rice has become Rice production needs to be addressed an important technical issue. Due to the fewer varieties of closed herbicides that are suitable for the direct seeding field in rice, the widespread weeds in rice direct seeding fields in Jiangsu Province are seriously endangered.