Articles | Volume 8, issue 2
https://doi.org/10.5194/soil-8-605-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-8-605-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Original research article
| 
26 Sep 2022
Original research article |
| 26 Sep 2022
| 26 Sep 2022
Effects of returning corn straw and fermented corn straw to fields on the soil organic carbon pools and humus composition
Yifeng Zhang
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Sen Dou
CORRESPONDING AUTHOR
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Batande Sinovuyo Ndzelu
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Rui Ma
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Dandan Zhang
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Xiaowei Zhang
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Shufen Ye
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Hongrui Wang
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, Jilin Province 130118, China
Related authors
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Yuhan Xia, Sen Dou, Song Guan, and Dilimulati Yalihong
EGUsphere, https://doi.org/10.5194/egusphere-2025-5686, https://doi.org/10.5194/egusphere-2025-5686, 2025
This preprint is open for discussion and under review for SOIL (SOIL).
Short summary
Short summary
Straw decomposes readily in soil: residues reduced aliphaticity, enhanced oxidation, higher humification, sharp POM decline. Biochar: highly stable, minimal residue/element shifts, slow POM decline, strong decomposition resistance. vs. CK, CS/Bc have higher POM organic carbon/SOM proportion—"false elevation" from undecomposed residues. Full POM counting risks SOM overestimation: recalcitrant organics’ long persistence biases global SOM assessments, providing key refs for precise SOM evaluation.
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Short summary
How to effectively convert corn straw into humic substances and return them to the soil in a relatively stable form is a concerning topic. Through a 360 d field experiment under equal carbon (C) mass, we found that return of the fermented corn straw treated with Trichoderma reesei to the field is more valuable and conducive to increasing easily oxidizable organic C, humus C content, and carbon pool management index than the direct application of corn straw.
How to effectively convert corn straw into humic substances and return them to the soil in a...
