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Articles | Volume 12, issue 2
Articles | Volume 12, issue 2
https://doi.org/10.5194/soil-12-791-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-12-791-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 2
Original research article
 | 
28 Jul 2026
Original research article |  | 28 Jul 2026

The pH and available phosphorus as primary drivers of compost-induced CO2 emissions from Malaysian tropical soil: empirical relationships

Xingxing Cheng, Faridah Othman, Rosazlin Abdullah, and Chiu Chuen Onn

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Short summary
This study examined how different composts affect carbon dioxide emissions from tropical soil. We found that soil phosphorus and pH are key drivers and chicken dung compost resulting in the highest CO2 release. The work shows that compost is not carbon neutral; its environmental impact depends on how it changes the soil. This research helps farmers select composts that enhance soil health while curbing emissions, advancing climate-friendly tropical agriculture.
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