32.5％苯甲·嘧菌酯悬浮剂对花生叶斑病的防效
Control Effect of 32.5 ％ Benzoyl-azoxystrobin SC on Peanut Leaf Spot Disease
邓丽 1殷君华 1李阳 1谷建中 1任丽 1张博1
作者信息
- 1. 开封市农林科学研究院,河南开封475004
- 折叠
摘要
[目的]明确32.5％苯甲·嘧菌酯悬浮剂对开封地区花生叶斑病的防治效果.[方法]以50％多菌灵可湿性粉剂为对照药剂,于2013、2014年通过小区试验研究32.5％苯甲·嘧菌酯悬浮剂对开封地区花生叶斑病的防治效果及最佳喷药时间.[结果]2013年,花生收获前,32.5％苯甲·嘧菌酯悬浮剂2000倍稀释液对开封地区叶斑病的防效达24.25％,与清水对照相比差异极显著.2014年,在播后65、80d进行初次喷药的情况下,花生收获前叶斑病防效分别达43.63％、49.7％,与清水对照相比差异极显著.[结论]在开封地区,32.5％苯甲·嘧菌酯悬浮剂2 000倍稀释液对花生叶斑病的防效和产量具有较好效果,在播后80d初次喷药防效较佳.
Abstract
[Objective] The aim was to evaluate the control effect of 32.5％ benzoyl-azoxystrobin SC against peanut leaf spot disease in Kaifeng.[Method] Taking 50％ carbendazim wettable powder as contrast agent,we studied efficacy and optimum applying time of 32.5％ benzoyl-azoxystrobin SC against peanut leaf spot disease through plot test in 2013 and 2014.[Result] In 2013,the control effect of 2 000 times of 32.5％ benzoyl-azoxystrobin SC liquid against peanut leaf spot disease was 24.25％ before peanut harvest and reached significant level.In 2014,the control effect was 43.63 ％ and 49.7％ respectively whose first spraying time was 65 days and 80 days after sowing,and the control effect both were very significant than water.[Conclusion] In Kaifeng,2 000 times of 32.5％ benzoyl-azoxystrobin SC liquid against peanut leaf spot disease has good effect on efficacy and yield,and it which is firstly sprayed at 80 days after sowing has optimum control effect.
关键词
32.5％苯甲·嘧菌酯悬浮剂/花生/叶斑病/防效Key words
32.5％ benzoyl-azoxystrobin SC/Peanut/Leaf spot disease/Efficacy引用本文复制引用
基金项目
河南省重大科技专项(161100111000)
国家花生产业技术体系(CARS-14)
开封市农业科技攻关项目(1502007)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据