稻田杂草的抗药性,随着高抗性风险除草剂品种的长期大量且单一地使用,已经成为了稻农挥之不去的种植管理难题,特别是在“重苗后除草而轻早期治理”的防除习惯影响下,直播稻田一年多次化学防除的现象也成为了不得不为的无奈之举,导致稻田除草剂用量逐年增加,并明显地成为了我国农药零增长战略规划顺利实现的一大障碍。为了解决这一难题,全国农业技术 Resistance to weeds in paddy fields has become a daunting problem for rice farmers due to the long-term mass and single use of high-risk herbicide varieties, especially in the areas of heavy weeding and light early Under the influence of “control”, the phenomenon of direct chemical control of direct-seeded rice fields many times a year has become a helpless move that has led to the increasing use of herbicides in rice fields and has obviously become a smooth implementation of our country's zero-growth strategic plan for pesticides A big obstacle. In order to solve this problem, the national agricultural technology