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April 21, 2026Frontiers in MicrobiologyOpen Access

Mechanistic insights into nitrogen fertilizer regulation of carbon-nitrogen cycling and greenhouse gas emissions: a metagenomics-based investigation

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Authors

TMTiantian MengJSJingjing ShiXZXi Zhang

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Overview

Metagenomic analysis demonstrates nitrogen fertilizer impacts greenhouse gas emissions in soil, suggesting management strategies for agriculture.

Key Points

  • This research investigates how nitrogen fertilizer affects soil microbial communities and greenhouse gas emissions through functional gene regulation.
  • Applied six nitrogen rates (N0 to N360) and measured greenhouse gas emissions (CH₄, N₂O, CO₂)
  • Utilized 16S amplicon and metagenomic sequencing to analyze microbial diversity and functional genes
  • Assessed changes in soil nutrients and microbial biomass carbon content.
  • Nitrogen application elevated greenhouse gas emissions, peaking at N300 treatment
  • Increased total nitrogen, nitrate nitrogen, and microbial biomass carbon observed
  • N240 treatment improved bacterial diversity by 10.82% to 14.65% compared to N0.

Cite This Study

Meng et al. (2026) studied this question.

synapsesocial.com/papers/69e7132bcb99343efc98cf3dhttps://doi.org/10.3389/fmicb.2026.1808047
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