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Position: Home > Articles > Relationship Among Phosphorus Forms in 0~100cm Soil Profiles After 23 Year Application of Fertilizers Journal of Soil and Water Conservation 2003,17 (3) 48-50

23年肥料定位试验0~100cm土壤剖面中各形态磷之间的关系研究

作  者:
吕家珑;张一平;陶国树;韩新宁
单  位:
运城市农业局;西北农林科技大学资源环境学院
关键词:
石灰性土壤;土壤磷形态;通径分析;多元回归分析
摘  要:
采用蒋柏藩-顾益初无机磷分级体系和Bowman-Cole建议的土壤有机磷分组方法对长期定位试验0~100cm土层土壤无机、有机磷的形态组成进行了分级测定,并运用相关分析、通径分析和逐步回归分析对土壤磷各组分与速效磷之间的关系进行了研究,结果表明,对速效磷贡献(通径系数)的相对重要性依次为:Ca2-P(0.8941)>Ca8-P(0.1603)>Al-P(-0.0683)>O-P(-0.0297)>Fe-P(0.0248)>活性有机磷(0.0193)>高稳性有机磷(-0.0187)>中稳性有机磷(-0.0178)>中活性有机磷(0.0077)>Ca10-P(0.0029)。由逐步回归分析得出Ca2-P、Ca8-P是速效磷的主要磷源。
译  名:
Relationship Among Phosphorus Forms in 0~100cm Soil Profiles After 23 Year Application of Fertilizers
作  者:
LU Jialong1, ZHANG Yiping1, TAO Guoshu2, HAN Xinning1 (1.College of Resources & Environment, Northwest SciTech University of Agriculture & Forestry, Yangling, Shaanxi 712100; 2.Yuncheng Agricultural Office, Yuncheng, Shanxi 044000)
关键词:
calcareous soil;soil phosphorus forms;path analysis;multiple regression analysis
摘  要:
This paper studied the forms of inorganic phosphorus and organic phosphorus in 0~100 cm soil profiles after 23 year continuum application fertilizers by the methods of JiangGus, and BowmanColes, and researched the relationships among phosphorus forms by correlation analysis, path analysis and multiple regression analysis. The results showed that the importance of phosphorus, path coefficient, for available phosphorus in proper order is Ca2-P(0.8941)>Ca8-P(0.1603)> Al-P(-0.0683)> O-P(-0.0297)> Fe-P(0.0248)> active organic P(0.0193)>high stable organic P(-0.0187)> medium stable organic P(-0.0178)> medium active organic P(0.0077)> Ca10-P(0.0029).The Ca2-P and Ca8-P are main source of available phosphorus by the results of multiple regression analysis. 

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