75％戊唑醇·嘧菌酯水分散粒剂对稻曲病的防治效果
Control Effect of 75％ Tebuconazole-azoxystrobin WG against Rice False Smut
余山红 1王会福1
作者信息
- 1. 浙江省台州市农业科学研究院,浙江临海317000
- 折叠
摘要
[目的]明确75％戊唑醇·嘧菌酯水分散粒剂对稻曲病的防治效果、适宜剂量及安全性.[方法]采用随机区组试验设计,设水稻破口前5d施用75％戊唑醇·嘧菌酯水分散粒剂150.0、225.0、300.0 g/hm2,75％肟菌·戊唑醇水分散粒剂225.0 g/hm2,20％井冈霉素可溶性粉剂937.5 g/hm2和空白对照共6个处理,研究其对稻曲病的防治效果.[结果]75％戊唑醇·嘧菌酯水分散粒剂随着用药量提高对稻曲病的防效显著上升,其150.0、225.0、300.0 g/hm2剂量处理之间防效均达极显著水平,其中225.0 g/hm2剂量处理的防效达81.4％,与对照药剂75％肟菌·戊唑醇水分散粒剂225.0 g/hm2无显著差异,但均极显著优于20％井冈霉素可溶性粉剂937.5 g/hm2处理.[结论]75％戊唑醇·嘧菌酯水分散粒剂对稻曲病具有较好的防治效果,且安全性好,在生产上具有良好的推广应用前景.
Abstract
[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.
关键词
75％戊唑醇·嘧菌酯水分散粒剂/稻曲病/药效试验Key words
75％ tebuconazole-azoxystrobin WG/Rice false smut/Field effect引用本文复制引用
基金项目
浙江省台州市科技计划农业类项目(14KY01)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据