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浅谈桂东县水稻稻瘟病防治技术

摘要 以桂东县为例,介绍了水稻稻瘟病的发生概况、危害症状、发生规律、流行原因及气候因素、栽培肥水管理,并提出了选择抗病品种、消灭越冬菌源、加强栽培管理、合理施肥管水等防治技术,为防治稻瘟病防治提供参考。

关键词 水稻稻瘟病;发生规律;防治技术

中图分类号:S435.11 文献标识码:B 文章编号:2095–3305(2023)12–00-03

Discussion on the Prevention and Control Techniques of Rice Blast in Guidong County

Guo Juan (Agricultural Comprehensive Service Center of Oujiang Town, Guidong County, Guidong, Hunan 423500)

Abstract Taking Guidong County as an example, introduced the occurrence overview, harmful symptoms, occurrence patterns, epidemic reasons and climate factors, cultivation fertilizer and water management of rice blast disease. It also proposed prevention and control technologies such as selecting resistant varieties, eliminating overwintering bacterial sources, strengthening cultivation management, and rational fertilization and water management, providing reference for the prevention and control of rice blast disease.

Key words Rice blast disease; The occurrence pattern; Prevention and control technology

稻瘟病又名稻热病、火烧瘟、叩头瘟,是水稻生产上危害最大的一种流行性、灾害性病害,也是水稻三大重要病害之一,广泛分布于桂东县各稻区,该县稻瘟病每年发生程度虽有差异,但轻则造成减产10%~20%、重则减产40%~50%,甚至在病态严重时,一些被染病的水稻品种会出现全田皆是白穗,因灾害而绝收。(剩余6092字)

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