Da-Bing Xu

A 20% nitrogen reduction threshold optimizes soil carbon stability and microbial functional resilience under long-term straw return in a rice–wheat rotation

Reducing synthetic nitrogen (N) fertilizer while maintaining soil fertility and crop productivity is a major challenge for sustainable rice production. Straw return has been widely adopted to enhance soil organic carbon (SOC) sequestration; however, the mechanisms by which reduced N input interacts with straw return to...