摘要
为了筛选出生产上防治水稻纹枯病的理想药剂,本研究采用茎叶喷雾法,在江苏省宿迁市进行田间药效试验,评价了30%氟环唑·咪鲜胺微乳剂对水稻纹枯病的田间防治效果。试验结果表明,30%氟环唑·咪鲜胺微乳剂施药量为135和225 g a.i./hm^(2)时,第2次施药后14 d对水稻纹枯病的平均防效分别为60.85%和71.24%,能有效控制水稻纹枯病的发生,并且持效期达14 d以上,优于噻呋酰胺推荐剂量72 g a.i./hm^(2)下的防效,远高于空白对照。试验药剂对水稻生长、抽穗灌浆均无不良影响,单季最高增产最高可达20.72%。该药剂可用于水稻纹枯病的防治,推荐施用量为135~225 g a.i./hm^(2),对水稻生长安全,且在一定程度上能够提高水稻的产量,推广应用前景良好,可达到实现农药减量增效的目的。
To screen out the effective fungicide for controlling rice sheath blight,a field efficacy test was conducted in Suqian city of Jiangsu province by stem and leaf spray method to evaluate the control effect of epoxiconazole·prochloraz 30%ME on rice sheath blight in field.The results showed that the average control effects of epoxiconazole·prochloraz 30%ME at 135 and 225 g a.i./hm^(2) on rice sheath blight 14 d after the second application were 60.85%and 71.24%,respectively,which could effectively control the occurrence of rice sheath blight,and the duration of effect was more than 14 d.The control effect was better than that of tifurofuramide at 72 g a.i./hm^(2),and significantly better than that of blank control.The experimental agents had no adverse effects on rice growth and heading filling,and the highest yield increase in a single season was 20.72%.The fungicide could be used to control rice sheath blight,and the appropriate dosage was 135-225 g a.i./hm^(2),which was safe for rice growth,and could improve rice yield to a certain extent.It had a good prospect for popularization and application,and the purpose of reducing pesticide quantity and increasing efficiency.
作者
杨洋
赵宜君
马超
段小莉
张力卜
张彦辉
张立群
徐军
陈昶
YANG Yang;ZHAO Yijun;MA Chao;DUAN Xiaoli;ZHANG Libo;ZHANG Yanhui;ZHANG Liqun;XU Jun;CHEN Chang(Hebei Zhongbao Green Agricultural Crop Technology Co.,Ltd.,Beijing100193,China;Insitute of Plant Protection,Chinese Academy of Agricultural Science,Beijing100193,China)
出处
《现代农药》
CAS
2022年第4期58-61,共4页
MODERN AGROCHEMICALS
基金
国家重点研发计划项目(2016YFD0200507)。
