丙嗪嘧磺隆等药剂对直播稻田杂草的防除效果  

Control Efficacies of Propyrisulfuron and Mixtures with Other Herbicides against Weeds in Direct-seeded Rice Field

作　　者：徐源辉 唐涛 刘都才 漆国武 吴远国 

机构地区：[1]醴陵市植保植检站,湖南醴陵412200 [2]湖南省植物保护研究所,湖南长沙410125

出　　处：《湖南农业科学》2015年第2期23-25,28,共4页Hunan Agricultural Sciences

基　　金：公益性行业(农业)科研专项(201303031)

摘　　要：2014年,通过不同施药时期的田间小区试验,探索了丙嗪嘧磺隆及其与氰戊草酯或双草醚混配对直播稻田杂草的防除效果,并评估其对水稻的安全性。试验结果表明,中稻直播后10 d施用丙嗪嘧磺隆,其对水稻安全,且能有效防除稗草、莎草和阔叶杂草,但对千金子基本无效。鉴于直播中稻田千金子发生危害较重,施用丙嗪嘧磺隆防除直播中稻田杂草时,还需加入氰氟草酯等对千金子高效的除草剂,以确保有效控制稻田杂草危害,从而为水稻安全、高效生产提供保障。In 2014, field plot experiments were conducted to investigate control efficacy and safety of propyrisulfuron and its mixtures with butyl-cyhalofop or bispyribac-sodium applied against weeds at different periods after rice sowing in direct-seeded rice field.The results showed that perfect control efficacies of propyrisulfuron against barnyardgrass, sedges and broadleaf weeds could be achieved, but poor against Leptochloa chinensis, when it was applied at 10 days after sowing of medium rice. Based on the serious occurrence of L. chinensis in medium direct-seeded rice field, propyrisulfuron was needed to apply with cyhalofop-butyl against L. chinensis. This can effectively control weeds in paddy field and provide favorable conditions for safety and efficient production of rice.

关 键 词：丙嗪嘧磺隆 直播稻田 杂草 施药时期 防除效果 安全性 

分 类 号：S451[农业科学—植物保护]