云南师范大学学报（自然科学版）2024，Vol.44Issue(1)：51-58,8.DOI:10.7699/j.ynnu.ns-2024-011
土壤熏蒸对三七连作土壤微生物群落的影响
Effects of Soil Fumigation on Microbial Community under Continuous Cropping of Panax notoginseng
摘要
Abstract
To investigate the microbiological mechanism of chloropicrin fumigation(CF)in reducing continuous cropping obstacles of Panax notoginseng,the soil microbial communities under CP were analyzed and compared with the healthy soil cultivating P.notoginseng under forests.The results showed that after 18 months of cultivation,the survival rate of P.notoginseng in the experimental group was 63.0%,while the survival rate of P.notoginseng in the control group was only 2.0%.High throughput sequencing and bioinformatic analyses showed that compared with the soil under forest,the continuous cropping of P.notoginseng led to the decrease of soil microbial diversity(P<0.05),moreover,the relative abundance of pathogenic microorganisms such as Fusarium,Plectosphaerella,and Alternaria was increased,and the beneficial Burkholderia and Bradyrhizobium was decreased(P<0.05).CF reduced the relative abundance of pathogens in soil(P<0.05),regulated microbial community,and improved the survival rate of P.notoginseng under continuous cropping,which is an effective measure to reduce continuous cropping obstacle and promote sustainable cultivation of P.no-toginseng.关键词
三七/氯化苦/熏蒸/微生物群落/连作障碍Key words
Panax notoginseng/Chloropicrin/Fumigation/Microbial community/Continuous cropping obstacle分类
农业科技引用本文复制引用
王豪吉,陈鹏崟,王勇,魏富刚,杨绍周,官会林,徐武美..土壤熏蒸对三七连作土壤微生物群落的影响[J].云南师范大学学报（自然科学版）,2024,44(1):51-58,8.基金项目
国家自然科学基金资助项目(31901126) （31901126）
云南省"兴滇英才支持计划"资助项目(XDYC-QNRC-2022-0247) （XDYC-QNRC-2022-0247）
云南省院士专家工作站资助项目(202305AF150027,YSZJGZZ-2021062). （202305AF150027,YSZJGZZ-2021062）
