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Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (6): 85-94.doi: 10.11924/j.issn.1000-6850.casb2025-0112

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Research Progress on Allelopathy and Planting Mode of Garlic

LUO Junxia1(), GUO Zhigang2(), DUAN Lumei1, ZHAO Qianqian3, WANG Jing3, LI Qing3, ZHANG Qiang3, AN Xiaoliang3, ZHAO Jianbo4(), LIU Yanmin4, LI Guijin4, DONG Yajie4   

  1. 1 Zhengzhou Product Quality Inspection and Testing Center, Zhengzhou 450006
    2 Qixian Agricultural Technology Extension Station, Qixian, Henan 475200
    3 Jiaozuo Product Quality Inspection and Testing Center, Jiaozuo, Henan 454150
    4 Zhengzhou Agricultural Technology Extension Center, Zhengzhou 450002
  • Received:2025-02-19 Revised:2025-07-01 Online:2026-03-25 Published:2026-03-30

Abstract:

This study takes existing literature as the research object and systematically sorts out the types, mechanisms of action, and application effects of garlic allelopathic substances in intercropping, crop rotation, and other planting modes, And clarify the core path to alleviate continuous cropping obstacles by integrating literature with practical production, Based on this, the core mechanism of garlic allelopathy was revealed (direct inhibition of pathogenic bacteria: by releasing active substances such as allicin and thioether compounds, the growth and reproduction of soil borne pathogens in the soil were directly inhibited, reducing the incidence of diseases; regulation of rhizosphere microbiota: by changing the structure of rhizosphere soil microbial communities, increasing the abundance of beneficial bacteria, inhibiting the colonization of harmful bacteria, and improving soil microenvironment stability; enhancement of soil fertility: by affecting soil enzyme activity, promoting organic matter decomposition and nutrient conversion, indirectly improving soil fertility), This article elaborates on the application value of garlic allelopathy, points out the research limitations of existing literature, and looks forward to future research, in order to provide theoretical basis and practical reference for optimizing garlic planting system, promoting green agricultural technology innovation, and helping to achieve the goal of sustainable agricultural development.

Key words: garlic, allelochemicals, continuous cropping obstacle, rhizosphere soil, planting mode