Decreased net N nitrification rate constrains soil N availability during long-term Camellia oleifera cultivation - Tinghao Zong; Jingwei Ma; Xinming Guan; Yusong Lin; Yuqi Chen; Meiqi Wang; Jiaze Lv; Yichao Rui; Yang Chen; Lichao Wu; Sheng Lu (Applied Soil Ecology, 2025)