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Effects of Biochar and Plant Growth-Promoting Rhizobacteria on Plant Performance and Soil Environmental Stability

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  • Han Ren

    (College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
    Forestry College, Guangxi University, Daxue E Rd., Xixiangtang District, Nanning 530004, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China)

  • Zilu Li

    (College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China)

  • Hualin Chen

    (College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China)

  • Jiangmin Zhou

    (College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China)

  • Chengqun Lv

    (Forestry College, Guangxi University, Daxue E Rd., Xixiangtang District, Nanning 530004, China)

Abstract

(1) Background: Biochar and plant growth-promoting rhizobacteria (PGPR) are widely used as amendments to increase the availability of nutrients and the diversity of the bacterial community within soil. (2) Methods: In this study, we investigated the effects of biochar and PGPR amendments on plant performance, soil physicochemical property, and soil microbial diversity, as well as their relationship in a Eucalyptus (clone DH32−29) plantation in Guangxi, China. We determined the microbial AWCD , Simpson, Shannon, and McIntosh indices, and soil inorganic nitrogen (NH 4 + , NO 3 − ), total phosphorus (TP), total potassium (TK), total nitrogen (TN), and plant growth and nutrient concentrations; (3) Results: Biochar-only had a significant impact on soil microbial community function, although the effects on plant performance were limited. PGPR plus biochar was found to significantly increase the diversity indices of soil microbes, as well as soil TK and TP. Besides, soil microbes displayed a preference for carbohydrates rather than other carbon sources. (4) Conclusion: Soil microbial functional diversity responded to changes in plant performance and, therefore, it could indicate soil ecological stability and ecosystem productivity. These findings may suggest that biochar and PGPR could potentially maintain ecological sustainability in the soil and improve plant performance through altering soil physicochemical properties in a eucalyptus plantation.

Suggested Citation

  • Han Ren & Zilu Li & Hualin Chen & Jiangmin Zhou & Chengqun Lv, 2022. "Effects of Biochar and Plant Growth-Promoting Rhizobacteria on Plant Performance and Soil Environmental Stability," Sustainability, MDPI, vol. 14(17), pages 1-15, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:17:p:10922-:d:904123
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    References listed on IDEAS

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    1. Simone Marzeddu & Andrea Cappelli & Andrea Ambrosio & María Alejandra Décima & Paolo Viotti & Maria Rosaria Boni, 2021. "A Life Cycle Assessment of an Energy-Biochar Chain Involving a Gasification Plant in Italy," Land, MDPI, vol. 10(11), pages 1-29, November.
    2. Hua, Lei & Yu, Fei & Qiu, Quan & He, Qian & Su, Yan & Liu, Xiaodong & Li, Jiyue, 2021. "Relationships between diurnal and seasonal variation of photosynthetic characteristics of Eucalyptus plantation and environmental factors under dry-season irrigation with fertilization," Agricultural Water Management, Elsevier, vol. 248(C).
    3. Cristiane Francisca Barbosa & Dehon Aparecido Correa & Jefferson Santana da Silva Carneiro & Leônidas Carrijo Azevedo Melo, 2022. "Biochar Phosphate Fertilizer Loaded with Urea Preserves Available Nitrogen Longer than Conventional Urea," Sustainability, MDPI, vol. 14(2), pages 1-15, January.
    4. Bhatia, Shashi Kant & Bhatia, Ravi Kant & Yang, Yung-Hun, 2017. "An overview of microdiesel — A sustainable future source of renewable energy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 1078-1090.
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