生姜青枯病的生态防治研究  

ECOLOGICAL CONTROL OF BACTERIAL WILT IN GINGER

作　　者：张碧波[1] 廖林正[1] 

机构地区：[1]渝西学院生命科学系,重庆永川402168

出　　处：《西南农业大学学报（自然科学版）》2005年第3期305-308,共4页Journal of Southwest Agricultural University

基　　金：重庆市科委资助项目(021204)

摘　　要：研究连作地、新开地及施加有机肥的连作地中的微生物多样性与生姜青枯病的关系,结果发现,连作地在施加有机肥后,青枯病的发病率降至37.64%,真菌、放线菌的数量增加。土壤的几丁质酶活力增加,Shannon指数、Simpson指数及MeIntosh指数、Aiataoa均匀度均显著增加。结果表明,施加生态有机肥可以改善土壤微生物群落结构,提高微生物多样性,从而抑制病害发生。The relationship between bacterial wilt (Ralstonia solanacearum) of ginger and the soil biodiversity in freshly plowed soil and continuously cropping soils with or without the addition of EFO (ecological organic fertilizer). The incidence of the disease was reduced to 37.64% in the continuously cropping soil when EFO was applied to it. The number of fungi and actinomycetes, chitinase, Simpson index, Shannon index, McIntosh index and Alatalo evenness increased. Such results showed that application of EFO helped increase soil biodiversity and suppress soil-borne pathogens on the ecological level.

关 键 词：青枯病 防治研究 生姜 Shannon指数 Simpson指数 微生物多样性 微生物群落结构 几丁质酶活力 生态有机肥 改善土壤 病害发生 连作 发病率 放线菌 H指数 均匀度 

分 类 号：S436.412.1[农业科学—农业昆虫与害虫防治] TD324.2[农业科学—植物保护]