How soil organic carbon structures diazotrophic communities: Insights from apple orchards across China

Key Points

• Microbial diversity is significantly shaped by levels of soil organic carbon, influencing diazotrophic communities.
• Key metrics show that variations in soil organic carbon correlate with changes in community composition.
• Observational analysis across multiple apple orchards in China highlights the role of soil composition.
• This supports the notion that improving soil health through organic matter may enhance nitrogen-fixing capabilities.