摘要
通过 3年试验 ,筛选出对稻曲病防效较好的药剂有络氨铜、DT杀菌剂、CT杀菌剂 ,防效达 70 %左右 ,施药的适期在水稻孕穗末期破口前 5d左右 ,施药的有效次数为 1次 ,破口后施药药效不理想 。
Cuprammonia, DT and CT fungicide are selected for controlling rice false smut according to three year experiment results and the optimum period of application is about 5 days before the telophase of booting stage and the control effectiveness rate is up to 70%. But, if the agents are applied at the prophase of heading stage, the control effectiveness is poor and causing medical harm.
出处
《贵州农业科学》
CAS
2000年第5期21-23,共3页
Guizhou Agricultural Sciences
