Soil phosphorus pool variation is more strongly associated with microbial community composition than with phosphorus-cycling functional gene profiles under long-term nitrogen fertilization - Ruibo Sun; Ziyue Zhao; Wenxu Dong; Fenghua Wang; Bingbing Luo; Chao Ma; Binbin Liu; Chunsheng Hu; Xiaoxin Li; Yu Shi (Agriculture, Ecosystems & Environment, 2026)