通过近几年多点试验、示范、调查研究 ,基本探明了免耕油菜田杂草发生种类、密度、特点。掌握了克无踪在免耕直播、移栽油菜田单用、混用“一杀一封”或先“杀”后“封”应用技术 ,获得总防效达 90 %左右的除草效果 ,解决了免耕油菜田杂草难防除问题 Through several experiments, demonstration and investigation in recent years, the types, density and characteristics of weeds in no-tillage rape field have been basically ascertained. Grasp the no trace of no-tillage live, transplanting rape fields alone, mixed with “kill one” or “kill” after the “seal” application technology, the total control effect of about 90% of the weeding effect, to solve Tillage weeds in no-till rape fields are difficult to control