淺談桂東縣水稻稻瘟病防治技術(shù)
摘要 以桂東縣為例,介紹了水稻稻瘟病的發(fā)生概況、危害癥狀、發(fā)生規(guī)律、流行原因及氣候因素、栽培肥水管理,并提出了選擇抗病品種、消滅越冬菌源、加強(qiáng)栽培管理、合理施肥管水等防治技術(shù),為防治稻瘟病防治提供參考。
關(guān)鍵詞 水稻稻瘟??;發(fā)生規(guī)律;防治技術(shù)
中圖分類號:S435.11 文獻(xiàn)標(biāo)識碼:B 文章編號: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
稻瘟病又名稻熱病、火燒瘟、叩頭瘟,是水稻生產(chǎn)上危害最大的一種流行性、災(zāi)害性病害,也是水稻三大重要病害之一,廣泛分布于桂東縣各稻區(qū),該縣稻瘟病每年發(fā)生程度雖有差異,但輕則造成減產(chǎn)10%~20%、重則減產(chǎn)40%~50%,甚至在病態(tài)嚴(yán)重時(shí),一些被染病的水稻品種會出現(xiàn)全田皆是白穗,因?yàn)?zāi)害而絕收。(剩余6092字)