Biological Mechanisms of Phosphorus Mobilization in Long-term and Short-term Tea–White Clover Intercropping Systems on Red Acidic Soils - Ya Chen; Pei Yuan; Chun Wang; Yingzi Wang; Dandan Xu; Mamdouh A. Eissa; Ghulam Mustafa Shah; Jinjing Li; Shuaiming Li; Zeyu Zhong; Chang Tian (Journal of Soil Science and Plant Nutrition, 2026)