复合微生物菌剂和化肥配施对连作玉米产量和根际细菌群落的影响

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doi：10.11733/j.issn.1007-0435.2025.09.034

关键词：复合微生物菌剂；化肥；玉米；根际微生物；微生物多样性中图分类号：S154.3；S513 文献标识码：A 文章编号：1007-0435（2025）09-3108-10

Effects of Compound Microbial Agents Combined with Fertilizers Application on Maize continuous cropping Yield and Rhizosphere Bacterial Community

LI Jia- ⋅li1 ，WANG Xing1，WANG Juan1，MIAO Chun-qin1，WANG Tuo-he1，GUAN Cheng-ping1， JIA Gai-xiu1，WU Gang²，HU Hai-yan²，CHEN Xiao-jun1* （1.ZhangyeAcademyofAgriculturalSciences，Zhangye，GansuProvince 734oo，China;2.GansuOlymbel BiotechnologyGroup，Zhangye， Gansu Province 73400o，China）

Abstract：To provide a theoretical basis for solving the obstacles on maize continuous cropping，which were studied on the efects ofcompound microbial agents combined with fertilizers onthe yieldand rhizosphere bacterial community.A total of 1O treatments were set up with conventional fertilization（CK），different doses of CK+ microbial agents，CK + different doses of microbial agents，and the agronomic traits and yield of maize were counted and the changes of bacterial community structure in rhizosphere soil were measured.The results showed that the combined application of 100% compound microbial agent and no less than 80% fertilizers increased the 1OO-grain weight of maize by 3.0%-3.9% ，increased yield by 6.4%-11.8% ，increased the Shannon index of rhizosphere bacteria，enriched the dominant bacteria in maize rhizosphere soil significantly， increased the relative abundanceof soil proteobacteria and somebacteroides significantly，improved the community structure of soil rhizosphere bacteria. To sum up，it was the optimal dose that the combination of 100% （20号 compound microbial agent and 80% fertilizer had the effects of reducing fertilizers，increasing maize yield，promoting the microbial diversity and the abundanceof dominant microbial community in rhizosphere soil，and improving the soil microbial community. This experiment can provide a theoretical basis for addressing the obstacleofcontinuous cropping in maize，which will contribute to promoting the implementation of sustainable development strategies in agricultural production and ensuring food security.

Key words：Compound microbial agent;Fertilizer;Maize;Rhizosphere soil microorganisms;Microbial diversity

玉米（ZeamaysL.）是全球第一大粮食作物，中国的玉米产量仅次于美国，位居第二。（剩余14754字）