Straw and biochar co-application: a strategy to reduce Cd–Zn bioavailability, alleviate microbial nutrient limitations and enhance soil C stability

Kang, Xirui; Geng, Na; Li, Yaping; Wang, Hui; Pan, Hong; Yang, Quangang; Yang, Zhongchen; Lou, Yanhong; Zhuge, Yuping

doi:10.5194/soil-12-1021-2026

Articles | Volume 12, issue 2

https://doi.org/10.5194/soil-12-1021-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/soil-12-1021-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 2

Original research article

|

19 Oct 2026

Original research article |

| 19 Oct 2026

Straw and biochar co-application: a strategy to reduce Cd–Zn bioavailability, alleviate microbial nutrient limitations and enhance soil C stability

Xirui Kang, Na Geng, Yaping Li, Hui Wang, Hong Pan, Quangang Yang, Zhongchen Yang, Yanhong Lou, and Yuping Zhuge

Supplement

https://doi.org/10.5194/soil-12-1021-2026-supplement

Data sets

Straw and biochar co-application reduce Cd-Zn bioavailability, V1, Xirui Kang https://doi.org/10.17632/pg4d42wjwf.1

Short summary

Effective strategies are needed to remediate heavy metal pollution while supplying carbon (C) to maintain microbial activity and soil fertility. In this study, we revealed that optimised straw:biochar ratio (1 : 3) provides a novel integrated approach for remediating heavy metal-contaminated agricultural soils while simultaneously enhancing soil C stability, nutrient availability, and microbial activity.