微生物菌剂对连作地块辣椒生长和微生物群落的影响

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中图分类号：S641.3 文献标志码：A 文章编号：1673-2871（2025）08-154-07

Effects of microbial agents on the pepper growth and microbial community in continuous cropping plots

LIU Zhiliang'，LIU Yubing²，LIUXinhua²， YANJiqiong³， CAO Chunxin² （1.TaishunCoutAgricuturalecholgExtesionenteTishun5ejanghna;naAgriculturaliee searchsttenuotd Abstract：Usingthe chili variety Chicken Claw x Jilin as the material， the effect of microbial agents on the growth and microbialcommunityofchili pepper incontinuous cropping plots was studied through holeapplication method.The results indicate that themicrobial agent（SW）promotes the growth ofpepper toacertain extent.The plant height，stemdiameter，fruitlength，fruit widthandyieldoftheplantaresignificantlyhigherthanthoseofthecontrol（CK）.Notablythe yield is the largest，with an increase of 14.76% compared to the control. The application of microbial agent increases the relativespeciesnumberandOTU numberoffungiand bacteria inthesoil.Through KEGGmetabolic pathwayanalysis，it is foundthatmetabolismisthepathwaywiththe mostsignificant enrichmentofdiferential functions，with relative abundance of nearly 80% . Comprehensive analysis shows that microbial agent can improve the community structure of soil fungi and bacteria， promote the growth of pepper plant，and increase pepper yield.

Key words：Pepper;Microbial agent; Crop continuous; Growth;Microbial community

近年来，随着全球人口增加，城市化进程加快，耕地面积逐渐减少，重茬导致的连作障碍已成为制约辣椒生产和发展的一大难题。（剩余8368字）