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Effects of Biochar under Different Preparation Conditions on the Growth of Capsicum

Author

Listed:
  • Haiwei Xie

    (School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Xuan Zhou

    (School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Yan Zhang

    (School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China)

Abstract

Biochar return to the field has been widely explored, but there is a problematic disconnect between biochar preparation and biochar return to the field. In this study, soybean straw is used as a raw material and is sieved into two components: 60-mesh (0.250 mm) and 110-mesh (0.130 mm). Four kinds of biochar were obtained by pyrolysis under the condition of no heat preservation and heat preservation for 60 min. The biochar was applied to the soil, and the effects of biochar on soil and capsicum growth were analyzed by Spearman correlation. Compared with the control group, soil pH, soil electrical conductivity, and soil organic matter decomposition were increased by 0.58, 101 μs/cm, and 9.48%, respectively. The fruit quantity, plant height, water, fat, soluble solid, and titrable acidity of capsicum were increased by 1, 0.55, 0.08, 0.62, 0.67, and 0.7 times, respectively. Spearman correlation analysis showed that soil properties and capsicum growth were most affected by biochar’s specific surface area (SSA). Therefore, increasing the biomass mesh number and heat preservation time is beneficial to increasing the SSA of biochar and facilitating the return of biochar to the field and the best preparation conditions are 110-mesh soybean straw biomass pyrolysis and heat preservation for 60 min.

Suggested Citation

  • Haiwei Xie & Xuan Zhou & Yan Zhang, 2024. "Effects of Biochar under Different Preparation Conditions on the Growth of Capsicum," Sustainability, MDPI, vol. 16(16), pages 1-13, August.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:16:p:6869-:d:1453684
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    References listed on IDEAS

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    1. Xinyi Huang & Xue Chen & Yunzhi Guo & Hanxi Wang, 2023. "Study on Utilization of Biochar Prepared from Crop Straw with Enhanced Carbon Sink Function in Northeast China," Sustainability, MDPI, vol. 15(7), pages 1-19, March.
    2. Zhongqing Zhang & Chenhui Zhou & Jingmin Yang & Bingjian Yan & Jinhua Liu & Sinan Wang & Qi Li & Mengmeng Zhou, 2022. "Preparation and Characterization of Apricot Kernel Shell Biochar and Its Adsorption Mechanism for Atrazine," Sustainability, MDPI, vol. 14(7), pages 1-15, March.
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