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Analysis of the Effect of Modified Biochar on Saline–Alkali Soil Remediation and Crop Growth

Author

Listed:
  • Chunyu Li

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Zhichao Wang

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Yutao Xu

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Jingfei Sun

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Xinyi Ruan

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Xuanwen Mao

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Xiangyun Hu

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

  • Peng Liu

    (Botany Laboratory, College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China)

Abstract

To solve the problem of soil degradation in coastal saline–alkali land, three different types of biochar (rice straw biochar, magnetic biochar, and humic acid–magnetic biochar) were prepared to remedy the saline–alkali soil under different mixing ratios. The effects of biochar on the growth of crops in saline–alkali soil were explored through a pot experiment on Chinese cabbage. The experimental results showed that the soil leaching treatment combined with humic acid–magnetic biochar could effectively repair the coastal saline–alkali soil. After adding 5% humic acid–magnetic biochar, the content of soil organic matter was 33.95 g/kg, the water content was 13.85%, and the contents of available phosphorus and available potassium were 9.43 mg/kg and 29.51 mg/kg. After adding 5% humic acid–magnetic biochar, the plant height of Chinese cabbage was 9.16 ± 0.19 cm, and the plant germination rate reached 83.33 ± 5.54%. The incorporation of biochar could effectively increase the chlorophyll content and soluble protein content of pakchoi and reduce the soluble sugar content of pakchoi. The study analyzed the effect of different modified biochar on saline–alkali land restoration and crop growth and explored the action rule of hydrochloric acid magnetic biochar on saline–alkali land restoration, which has important practical value for improving coastal saline–alkali land.

Suggested Citation

  • Chunyu Li & Zhichao Wang & Yutao Xu & Jingfei Sun & Xinyi Ruan & Xuanwen Mao & Xiangyun Hu & Peng Liu, 2023. "Analysis of the Effect of Modified Biochar on Saline–Alkali Soil Remediation and Crop Growth," Sustainability, MDPI, vol. 15(6), pages 1-17, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5593-:d:1104398
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    References listed on IDEAS

    as
    1. Sylwia Lew & Katarzyna Glińska-Lewczuk & Paweł Burandt & Klaudia Kulesza & Szymon Kobus & Krystian Obolewski, 2022. "Salinity as a Determinant Structuring Microbial Communities in Coastal Lakes," IJERPH, MDPI, vol. 19(8), pages 1-16, April.
    2. Pablo Rugero Magalhães Dourado & Edivan Rodrigues de Souza & Monaliza Alves dos Santos & Cintia Maria Teixeira Lins & Danilo Rodrigues Monteiro & Martha Katharinne Silva Souza Paulino & Bruce Schaffer, 2022. "Stomatal Regulation and Osmotic Adjustment in Sorghum in Response to Salinity," Agriculture, MDPI, vol. 12(5), pages 1-12, May.
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