Control Effect of 75％ Tebuconazole-azoxystrobin WG against Rice False Smut
[Objective] The aim was to verify the effectivity,appropriate dose,safety of 75 ％ tebuconazole-azoxystrobin WG on controlling rice false smut disease.[Method] Six treatments including 75％ tebuconazole-azoxystrobin WG 150.0,225.0,300.0 g/hm2,75％ trifloxystrobin-tebuconazole WG 225.0 g/hm2,20％ validamycin SP 937.5 g/hm2 and blank control were set up to study their field efficacy with randomized block design.[Result] Disease controlling efficiency grew with dose increase.The control effect of 3 different doses of 75％ trifloxystrobin-tebuconazole WG existed markedly significant difference between each other,with a efficiency up to 81.4％ (225.0 g/hm2) when sprayed 5 days before rupturing,which had no significant difference with 75％ trifloxystrobin-tebuconazole WG (225.0 g/hm2),but extremely better than 20％ validamycin SP (937.5 g/hm2).[Conclusion] 75％ tebuconazole-azoxystrobin WG had excellent effect and safety on controlling rice false smut.A regional application can be developed.
国家科技期刊平台
NSTL
万方数据
维普
