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Chinese Journal of Applied Ecology
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Soil Olsen-P content changing trend and its relationship with phosphorus surplus and crop yield under long-term fertilization in loessial soil region on the Loess Plateau, China.
E Sheng-zhe1,2, YANG Zhi-qi3, ZENG Xi-bai1*, WANG Ya-nan1, LUO Zhao-xia3, YUAN Jin-hua2, CHE Zong-xian2#br#
(1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2Institute of Soil and Fertilizer and Save Water Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China; 3Tianshui Academy of Agricultural Sciences, Tianshui 741000, Gansu, China).

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