Agriculture

Soil microbial metabolism on carbon and nitrogen transformation links the crop-residue contribution to soil organic carbon

Z. Xie, Z. Yu, et al.

Discover how microbial metabolic processes reshape soil organic carbon accumulation in response to nitrogen supply from crop residues. This groundbreaking research by Zhihuang Xie, Zhenhua Yu, Yansheng Li, Guanghua Wang, Xiaobing Liu, Caixian Tang, Tengxiang Lian, Jonathan Adams, Junjie Liu, Judong Liu, Stephen J. Herbert, and Jian Jin reveals the correlation between microbial activity and carbon sequestration, highlighting a pathway to enhance soil health.

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Abstract

The study investigated how microbial metabolic processes influence soil organic carbon (SOC) accumulation in response to varying nitrogen (N) supply from crop residues. Using metagenomic analysis, NMR, and <sup>15</sup>N labeling, they found that residue amendment increased genes involved in carbon degradation and N mineralization. These genes correlated with C and N accumulation in SOC pools, suggesting microbial transformation of residues into persistent organic compounds, enhancing C and N sequestration.

Publisher

npj Biofilms and Microbiomes

Published On

Apr 01, 2022

Authors

Zhihuang Xie, Zhenhua Yu, Yansheng Li, Guanghua Wang, Xiaobing Liu, Caixian Tang, Tengxiang Lian, Jonathan Adams, Junjie Liu, Judong Liu, Stephen J. Herbert, Jian Jin

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