The effects of biochar on soil quality and potato yield in Arid and Semi-Arid Regions of North China.

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Title: The effects of biochar on soil quality and potato yield in Arid and Semi-Arid Regions of North China.
Authors: Guo, Jiawei1 (AUTHOR), Zhou, Hui2,3 (AUTHOR) zhouhui@iwhr.com, Jia, Liguo1 (AUTHOR) nndjialiguo@163.com, Wang, Yongqiang1 (AUTHOR), Fan, Mingshou1 (AUTHOR), Qin, Yonglin1 (AUTHOR)
Source: Plant & Soil. Nov2025, Vol. 516 Issue 2, p1803-1824. 22p.
Subjects: Biochar, Soil quality, Thermolysis, Potato industry, Field research, Arid regions
Geographic Terms: North China Plain (China)
Abstract: Aims: To evaluate the effects of biochar produced at different pyrolysis temperatures on soil quality and its regulatory factors, and to elucidate the relationship between soil quality and potato yield, thereby identifying the optimal pyrolysis temperature and better biochar rates. Methods: A two-year (2023–2024) randomized block field experiment was conducted in North China to investigate the impact of different biochar pyrolysis temperatures (T1: 300 °C, T2: 500 °C, T3: 700 °C) and application rates (C1: 10 t·ha⁻1, C2: 20 t·ha⁻1, C3: 30 t·ha⁻1) on soil quality and its synergistic effect on potato yield. Results: (1) The Soil Quality Index (SQI) calculated using the nonlinear scoring model more accurately assessed soil quality in potato farmland, with the C2T2 treatment achieving the highest SQI, showing an increase of 1.04 to 1.28 times compared to other treatments over the two years. (2) In 2023 and 2024, the potato yield under the C2T2 treatment increased by 23.93% and 30.69%, respectively, compared to CK, and potato yield exhibited a linear increase with rising SQI. (3) Partial Least Squares Path Modeling (PLSPM) analysis indicated that the improvement in SQI was mainly attributed to biochar-enhanced soil moisture (θ), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and organic carbon content (SOC), which in turn promoted potato yield. Conclusions: A soil quality evaluation method is developed for a sandy loam soil used for potato production in an arid region., The suitable biochar application effectively improved θ, MBC, MBN, and SOC, thereby synergistically enhancing soil quality and potato yield. [ABSTRACT FROM AUTHOR]
Copyright of Plant & Soil is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: The effects of biochar on soil quality and potato yield in Arid and Semi-Arid Regions of North China.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Guo%2C+Jiawei%22">Guo, Jiawei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Hui%22">Zhou, Hui</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> zhouhui@iwhr.com</i><br /><searchLink fieldCode="AR" term="%22Jia%2C+Liguo%22">Jia, Liguo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> nndjialiguo@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yongqiang%22">Wang, Yongqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fan%2C+Mingshou%22">Fan, Mingshou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Yonglin%22">Qin, Yonglin</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Plant+%26+Soil%22">Plant & Soil</searchLink>. Nov2025, Vol. 516 Issue 2, p1803-1824. 22p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Biochar%22">Biochar</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+quality%22">Soil quality</searchLink><br /><searchLink fieldCode="DE" term="%22Thermolysis%22">Thermolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Potato+industry%22">Potato industry</searchLink><br /><searchLink fieldCode="DE" term="%22Field+research%22">Field research</searchLink><br /><searchLink fieldCode="DE" term="%22Arid+regions%22">Arid regions</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22North+China+Plain+%28China%29%22">North China Plain (China)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Aims: To evaluate the effects of biochar produced at different pyrolysis temperatures on soil quality and its regulatory factors, and to elucidate the relationship between soil quality and potato yield, thereby identifying the optimal pyrolysis temperature and better biochar rates. Methods: A two-year (2023–2024) randomized block field experiment was conducted in North China to investigate the impact of different biochar pyrolysis temperatures (T1: 300 °C, T2: 500 °C, T3: 700 °C) and application rates (C1: 10 t·ha⁻1, C2: 20 t·ha⁻1, C3: 30 t·ha⁻1) on soil quality and its synergistic effect on potato yield. Results: (1) The Soil Quality Index (SQI) calculated using the nonlinear scoring model more accurately assessed soil quality in potato farmland, with the C2T2 treatment achieving the highest SQI, showing an increase of 1.04 to 1.28 times compared to other treatments over the two years. (2) In 2023 and 2024, the potato yield under the C2T2 treatment increased by 23.93% and 30.69%, respectively, compared to CK, and potato yield exhibited a linear increase with rising SQI. (3) Partial Least Squares Path Modeling (PLSPM) analysis indicated that the improvement in SQI was mainly attributed to biochar-enhanced soil moisture (θ), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and organic carbon content (SOC), which in turn promoted potato yield. Conclusions: A soil quality evaluation method is developed for a sandy loam soil used for potato production in an arid region., The suitable biochar application effectively improved θ, MBC, MBN, and SOC, thereby synergistically enhancing soil quality and potato yield. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Plant & Soil is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s11104-025-07832-6
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      – Code: eng
        Text: English
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        PageCount: 22
        StartPage: 1803
    Subjects:
      – SubjectFull: Biochar
        Type: general
      – SubjectFull: Soil quality
        Type: general
      – SubjectFull: Thermolysis
        Type: general
      – SubjectFull: Potato industry
        Type: general
      – SubjectFull: Field research
        Type: general
      – SubjectFull: Arid regions
        Type: general
      – SubjectFull: North China Plain (China)
        Type: general
    Titles:
      – TitleFull: The effects of biochar on soil quality and potato yield in Arid and Semi-Arid Regions of North China.
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              Text: Nov2025
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              Y: 2025
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