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Relation between Aged-pine’s Soil Phosphatse Activation and Soil Nutrient of Root District in Shenyang East Imperial Tomb
Hao Zhanghong, Yang Jianzhong, Yan Li, Chen Jiaguang, Zha Chunmei, Guan Lianzhu
Chinese Agricultural Science Bulletin . 2006, (1): 194 -194 .  DOI: 10.11924/j.issn.1000-6850.0601194