Effects of Mixed Humus Soil and Straw Ash Substrate on Rhizosphere Bacterial Community and Growth of Hot Peppe
刊名 Asian Agricultural Research
作者 Zhiqi YANG, Yankun WANG
作者单位 College of Agriculture, Fujian Agriculture and Forestry University; College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University
DOI 10.19601/j.cnki.issn1943-9903.2025.08.007
年份 2025
刊期 8
页码 38-45
关键词 Humus soil, Straw ash, Plantation, Hot pepper, Rhizosphere
摘要  [Objectives] To explore the effects of mixed humus soil and straw ash substrate on rhizosphere bacterial community and growth of hot pepper. [Methods] In this pot experiment, high-throughput sequencing was conducted to analyze bacterial communities in the rhizosphere soil of pepper plants treated with four different HA proportions. [Results] Pepper seedlings exhibited optimal growth in the 6:4 (w/w) HA substrate. Bacterial structure and composition varied with the HA proportion. The relative abundance of the Proteobacteria phylum (ranging from 48.37% to 60.40%) was the highest across all treatments. Correlation analysis indicated that certain bacterial communities were closely related to the availability of soil nutrients and enzymatic activities. [Conclusions] This study elucidates the impact of HA proportion on rhizosphere bacterial communities and plant growth, laying a foundation for understanding the application of different mixed substrates and their effects on soil microbiology.