Acta Agriculturae Boreali-Sinica ›› 2026, Vol. 41 ›› Issue (1): 163-176. doi: 10.7668/hbnxb.20195768

Special Issue: Soil fertilizer

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Effects of Bacillus velezensis and Streptomyces lydicus on Soil Microbes and Physicochemical Properties in Peach Orchards

HU Nana, ZUO Qiang, DONG Dan, YU Yang, TIAN Yu, JING Yanfu, WU Huiling, XIE Hua   

  1. Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China
  • Received:2025-01-14 Published:2026-02-28

Abstract:

To evaluate the effects of microbial inoculants on soil microbial population and physicochemical properties,this study investigated the effects of the microbial inoculants,including Bacillus velezensis BPC6(B), Streptomyces lydicus (S), and their combined inoculants(BS) on the soil microbial abundance and physicochemical properties of field-grown and potted peach trees in Pinggu District,Beijing.The results showed that applying microbial inoculants(B,BS,and S) significantly increased the abundance of bacteria,fungi,and actinomycetes in field soils.Additionally,the microbial inoculants enhanced soil nutrient utilization efficiency by increasing the contents of soil organic matter,total carbon,total nitrogen,available nitrogen(alkaline-hydrolysis nitrogen),nitrate nitrogen,ammonium nitrogen,available potassium,total phosphorus,and available phosphorus,while no significant effect was observed on total potassium.Among them,during the peach harvest period,application of microbial inoculants B,BS,and S significantly increased soil available nitrogen by 11.89%,15.19%,and 35.27%,respectively,compared to the control.Available potassium increased significantly by 35.58%,22.92%,and 41.75%,respectively,while available phosphorus rose significantly by 37.97%,3.65%,and 62.60%,respectively.Correlation analysis further revealed that soil microbial abundance was significantly influenced by multiple soil environmental factors,particularly showing a strong positive correlation with available potassium content.The effect of improving soil fertility with different microbial inoculants(B,BS,and S) was as follows:microbial inoculant S was the most effective,and the combination application of B and S was better than that of individual application of inoculant B.The pot experiment further confirmed the important role of microbial inoculants in increasing soil available nitrogen levels.Compared to the control,application of microbial agents B,BS,and S significantly increased soil available nitrogen in potted peach Zhongpan 100 by 15.65%,16.67% and 13.45%,respectively;while microbial agents BS and S significantly increased available nitrogen in Zhongtao 14 by 13.65% and 18.13%,respectively.Overall,microbial inoculants effectively improved soil microbial abundance and fertility,providing scientific support and practical references for sustainable peach production.

Key words: Peach, Microbial inoculants, Bacillus velezensis, Streptomyces lydicus, Soil physicochemical properties, Soil microbial abundance

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Cite this article

HU Nana, ZUO Qiang, DONG Dan, YU Yang, TIAN Yu, JING Yanfu, WU Huiling, XIE Hua. Effects of Bacillus velezensis and Streptomyces lydicus on Soil Microbes and Physicochemical Properties in Peach Orchards[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(1): 163-176. doi: 10.7668/hbnxb.20195768.

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