机插秧粳稻恶苗病重发原因及控制对策
Occurence Reason and Control Countermeasures of Machine Transplanting Rice Bakanae Disease
张春云 1李红 2赵元明 3梅爱萍3
作者信息
- 1. 江苏省仪征市植保植检站,江苏仪征211400
- 2. 江苏省仪征市刘集镇农业服务中心,江苏仪征211400
- 3. 江苏省仪征市陈集镇农业服务中心,江苏仪征211400
- 折叠
摘要
根据2013 ～2015年的田间调查以及不同药剂、不同方法、不同浸种时间进行种子处理试验示范结果,分析了近年来机插秧恶苗病重发原因与症状特点,并提出了控制对策.重发原因包括:病田留种普遍,种子带菌量大;秧田覆膜育秧,病菌侵染有利;常用药抗性高,浸种防病效果差.控制对策包括:选用无病田留种,减少种子带菌量;加强栽培管理,培育健壮植株;淘汰抗性咪鲜胺,推广应用高效药;提倡药剂交替使用,延缓病菌产生抗性.
Abstract
According to field investigation during 2013-2015 and results of seed processing experiments with different medicaments,methods and soaking time,the occurence reasons (plastic film seedling is favorable for pathogen infection;commonly used drugs have high resistance)and symptom characteristics of machine transplanting rice bakanae disease were analyzed,control countermeasures were put forward including selecting disease free field,reducing bacteria quantity of seeds;enhancing cultivation management,cultivating strong plants;eliminating resistant midazolam,promoting high efficient medicaments;advocating alternate use of medicaments.
关键词
恶苗病/重发原因/控制对策Key words
Bakanae/Occurrence reason/Control countermeasures引用本文复制引用
基金项目
江苏省农业自主创新资金项目(CX14 2060)
公益行业(农业)科研专项(201303088)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据