中文摘要：

以沈阳农业大学蔬菜保护地长期定位试验为基础，通过田间试验和室内分析系统的研究了长期定位条件下，不同施肥处理对蔬菜保护地土壤无机磷组分的影响。结果表明，各不同施肥处理土壤无机磷组分均以Ca-P为主，其中又以Calo-P占绝对优势。不同组分的无机磷之间处于一个动态平衡过程，它们之间存在着一定程度的影响和制约关系，其中Ca2-P、Fe-P是速效磷的主要来源。

英文摘要：

In long-term experiment in vegetable greenhouse of Shenyang Agriculture University and through the cooperation of field experimen and the chemical analysis, it was conducted to study the effects of different fertilization on the characteristics of inorganic phosphorus.The results are summarized as follows： In the treatments with different fertilization, the large proportion of inorganic phosphorus was from Ca-P, especially Ca10-P. There was a dynamic balance in all kinds of inorganic P, and they were affected by each other. Ca2-Pand Fe-P were the main sources of rapidly available phosphorus（RAP）.