石柱黄连根腐病发生的相关生态因子及防治对策  

Ecological factors and control strategies of root rot of Coptis chinensis in Shizhu county,Chongqing city

作　　者：杨成前[1] 余中莲 杨娟 雷美艳[1] 全健[1] 杨天建[1] 宋旭红[2] YANG Chengqian;YU Zhonglian;YANG Juan;LEI Meiyan;QUAN Jian;YANG Tianjian;SONG Xuhong(Chongqing Institute of Medicinal Plant Cultivation, Chongqing Municipal Standardized Production Engineering Technology Research Center, Chongqing 408435, China;Chongqing Academy of Chinese Material Medica, Chongqing, 400065 China)

机构地区：[1]重庆市药物种植研究所,重庆市道地药材规范化生产工程技术研究中心,重庆408435 [2]重庆市中药研究院,重庆400065

出　　处：《植物保护》2020年第5期160-166,共7页Plant Protection

基　　金：重庆市自然科学基金(cstc2019jcyj-msxmX0762);重庆市科研机构绩效激励引导专项(cstc2018jxjl-jbky120013);重庆市卫生卫计委中医药科技项目(ZY201802038);重庆市现代山地特色高效农业技术体系(2018〔5〕号)。

摘　　要：为明确石柱黄连根腐病发生的生态条件、危害特点和防治对策,对67块石柱黄连地块的海拔、土壤质地类型、植被类型、坡度、荫蔽度、黄连耕作制度、生长年限等生态因子与根腐病发病情况进行了相关性分析,并测定了几种杀菌剂对黄连根腐病的防治效果。结果表明,黄连根腐病的发生程度与土壤质地呈显著相关,相关系数为0.290,与耕作制度呈极显著相关,相关系数为0.503;轮作8年地块以3%甲霜·噁霉灵AS处理对黄连根腐病的防治效果最好,为48.38%;轮作5年地块以75%百菌清WP处理对黄连根腐病的防治效果最好,为52.07%;而连作地以50%多菌灵WP+80%代森锰锌WP(1∶1)混合药剂处理对黄连根腐病的防治效果最好,为33.34%。综上所述,选择沙壤或壤土且间隔8年以上轮作黄连,结合化学防治可有效控制黄连根腐病的发生。To identify ecological factors and control strategies of root rot of Coptis chinensis in Shizhu county,Chongqing city,a systematic investigation was conducted on the incidence of root rot of C.chinensis and the control effects of several fungicides on C.chinensis root rot were determined.Results indicated that the occurrence degree of root rot of C.chinensis was significantly correlated with soil texture and farming system,and the correlation coefficients were 0.290 and 0.503,respectively.The rotation of the 8-year plot with the treatment of metalaxyl·hymexazol 3%AS has the highest control effect on the root rot of C.chinensis,with the efficacy of 48.38%.The rotation of the 5-year plot with the treatment of chlorothalonil 75%WP has the highest control effect on the root rot of C.chinensis,with the efficacy of 52.07%.The continuous cropping with the treatment of carbendazim 50%WP+mancozeb 80%WP(1∶1)has the highest control effect on the root rot of C.chinensis,with the efficacy of 33.34%.In conclusion,the selection of sandy soil or loam and the rotation of C.chinensis for more than 8 years in combination with chemical control can effectively control root rot of C.chinensis.

关 键 词：黄连 根腐病 生态因子 防治对策 

分 类 号：R931.2[医药卫生—生药学]