Effect of microbial fertilizers on soil microbial community structure in rotating and continuous cropping Glycyrrhiza uralensis

作者：Daiyu Qiu, Xue Wang, Kan Jiang, Gaoxia Gong, Fang Bao · 发表于：Frontiers in Plant Science · 年份：2025 · DOI：10.3389/fpls.2024.1452090 · 被引用次数：13 · 研究领域：Pharmacological Effects of Natural Compounds、Agriculture, Soil, Plant Science、Soil Carbon and Nitrogen Dynamics

Introduction Glycyrrhiza uralensis is a perennial medicinal plant. It’s generally cultivated for three years, and should avoid long-term continuous cultivation. However, unreasonable crop rotation and extensive fertilization are common in G. uralensis cultivation, which leads to the imbalance of soil microflora structure, and the obstacle of continuous cropping are becoming increasingly serious. Some microbial fertilizers such as Bacillus amyloliquefaciens, Bacillus subtilis , and complex microbial agent have the advantage of regulating soil microbial community structure and improving the soil environment. Therefore, these three kinds of microbial fertilizers were applied to G. uralensis and their effects on soil microorganisms of G. uralensis were studied. Methods Combine microbial fertilizers with conventional fertilization for continuous cropping and rotating G. uralensis . High-throughput sequencing technology was used to determine soil microbial richness, diversity and distribution of community structure in rotating and continuous cropping G. uralensis . Results and discussion Continuous cropping reduced G. uralensis soil bacterial diversity by 7.56% and increased fungal richness by 17.01% compared with crop rotation. However, after the application of microbial fertilizers, the fungal richness and diversity of continuous cropping G. uralensis were significantly reduced by 4.76%~20.96%, and the soil bacterial diversity of continuous cropping and rotating G. uralensis was ...