Welcome to Chinese Agricultural Science Bulletin,
Research on Different Form of Phosphorus of Different
Layers in Calcareous Soil
Hua Dangling, Yu Changkun, Liu Shiliang, Liu Fang, Jie Xiaolei,
Chinese Agricultural Science Bulletin . 2008, (9): 277 -282 .  DOI: 10.11924/j.issn.1000-6850.2008-0186