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This analysis aims to evaluate the effectiveness of bacterial inoculation for reducing nitrous oxide emissions in different environments.

Bacterial N2O mitigation potential in soil-based systems and liquid cultures: a comprehensive meta-analysis

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This analysis aims to evaluate the effectiveness of bacterial inoculation for reducing nitrous oxide emissions in different environments.
Conducted a meta-analysis with 257 data points from 34 studies.
Assessed bacterial inoculation's effects on N2O emissions in soil-based and liquid culture systems.
Performed functional gene analysis and phylogenetic characterization to explore molecular mechanisms.
Bacterial inoculation reduced cumulative N2O emissions significantly in both systems.
Liquid cultures achieved a 68.3% reduction, while soil-based systems had a 42.9% reduction.
N2O reduction rates were 3.68 μmol·h −1 ·g −1 for liquid cultures and 1.78 μmol·h −1 ·g −1 for soil-based systems.
Key functional genera identified include Bradyrhizobium in soil and Azospira in liquid cultures.

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Meta-analysis shows bacterial inoculation reduces N2O emissions in soil and liquid cultures, indicating environment-specific strategies.

Zhou et al. (2026) studied this question.

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