不同栽培方式下杂草稻化学防控技术研究

Research on Chemical Control and Prevention Techniques of Weedy Rice under Different Cultivation Methods

开展了移栽、直播等不同栽培方式对杂草稻控制效果的比较试验。结果显示,育苗移栽稻田相对于直播稻田更容易控制杂草稻的发生,在杂草稻发生地区是一种理想的控制杂草稻的栽培方式;而在直播稻田采用解草啶浸种、拌种等安全剂与除草剂分用技术,能在确保栽培稻安全的基础上提高杂草稻的防控效果,解草啶浸种后施用丙草胺封杀对杂草稻的防控效果优于解草啶拌种和播后喷施。

The control effects of different cultivation methods,such as transplanting and direct seeding,on weed rice were compared.The results showed that it was easier to control the emergence of weedy rice by seedling cultivation and transplanting in paddy fields than by direct seeding.However,the application of safety agents and herbicides such as dioxazine seed soaking and seed mixing in direct seeding paddy fields could improve the control effect of weed rice on the basis of ensuring the safety of cultivated rice.The control effect of trioxazine seed soaking followed by promethamine was better than that of dioxazine seed mixing and spraying after sowing.