AUTHOR=Shi Fengyu , Meng Xinpeng , Li Jiaxin , Yang Dan , Liu Jianbin , Liu Xingzhong , Xiang Meichun , Zhu Yingbo TITLE=Impact of nitrogen fertilization on soil microbial diversity, its mediated enzyme activities, and stem nematode population in sweet potato fields JOURNAL=Frontiers in Microbiology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1528575 DOI=10.3389/fmicb.2025.1528575 ISSN=1664-302X