摘要
通过主流防除稗草化学药剂五氟磺草胺、噁唑酰草胺、氰氟草酯、双草醚、二氯喹啉酸等单剂、复配剂及桶混组合10个药剂处理开展田间试验,药后30 d结果表明,在直播早稻中,10%噁唑·氰氟EC 240、300、360、450 g/hm^(2)株防效和鲜重防效均能达94%以上;10%氰氟草酯EC 600 g/hm^(2)、50%二氯喹啉酸WP 450 g/hm^(2)、10%双草醚SC 60 g/hm^(2)鲜重防效分别为81.06%、28.32%、54.56%;25 g/L五氟磺草胺OD 37.5 g/hm^(2)防效最低,株防效和鲜重防效分别为2.34%、7.64%,桶混二氯喹啉酸、双草醚鲜重防效提高至81.85%、67.30%。推荐早稲田以抗性稗草为优势杂草种群,在水稻3叶1心,稗草2叶1心至4叶1心使用10%噁唑·氰氟EC 240~300 g/hm^(2)防效优异,且对水稻安全。
The field experiment was carried out on 10 main chemical agents such as penflusulam,metamifop,cyhalofop-butyl,bispyrifos and quinclorac.The results of 30 days after the treatment showed that in direct seeding early rice,the control effect and fresh weight of 10%metamifop·cyhalofop-butyl EC 240,300,360,450 g/hm^(2)were all over 94%.The fresh weight control effects of 10%cyhalofop-butyl EC 600 g/hm^(2),50%quinclorac WP450 g/hm^(2)and 10%bispyrifos SC 60 g/hm^(2)were 81.06%,28.32%and 54.56%respectively;25 g/L pentaflusulam OD 37.5 g/hm^(2)had the lowest control effect,the plant control effect and the fresh weight control effect were 2.34%and 7.64%respectively,the fresh weight control effect of the barrel mixed with quinclorac and bispyrifos was improved to 81.85%and 67.30%.It was recommended that resistant barnyard grass was used as the dominant weed population in the early rice field,and the control effect was excellent when using 10%metamifop·cyhalofop-butyl EC 240-300 g/hm^(2)in three leaves and one heart of rice and one heart of barnyard grass and one heart to four leaves and safe for rice.
作者
桓宝林
邓炜
黄蕊
武超
罗坤
HUAN Bao-lin;DENG Wei;HUANG Rui(College of Plant Protection,Hunan Agricultural University,Changsha,Hunan 410128;Yongzhou Agricultural Comprehensive Service Center,Yongzhou,Hunan 425000;Changsha Agricultural and Rural Bureau,Changsha,Hunan 410128)
出处
《安徽农业科学》
2025年第6期139-141,共3页
Journal of Anhui Agricultural Sciences
关键词
稗草
水稻除草剂
防效
安全性
Echinochloa spp.
Rice herbicide
Contot effect
Safety
作者简介
桓宝林(1989-),男,陕西咸阳人,硕士研究生,研究方向:杂草抗药性;通信作者:罗坤,讲师,博士,硕士生导师,从事植物病理学、微生物学及微生物与抗药性相关性研究。
