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土壤磷有效性及其与土壤性质关系的研究
引用本文:贾兴永,李菊梅.土壤磷有效性及其与土壤性质关系的研究[J].中国土壤与肥料,2011(6):76-82.
作者姓名:贾兴永  李菊梅
作者单位:1. 农业部作物营养与施肥重点实验室,中国农业科学院农业资源与农业区划研究所,北京100081
2. 农业部作物营养与施肥重点实验室,中国农业科学院农业资源与农业区划研究所,北京100081;中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏南京210008
基金项目:自然科学基金,南京土壤与农业可持续发展国家重点实验室开放基金
摘    要:选取我国14个不同地点土样,测定理化性质、全磷、速效磷、水溶性磷含量,采用通径分析研究土壤磷有效性与土壤性质的关系。结果表明,土壤磷有效性是各个土壤性质综合作用的结果。土壤CEC、有机碳、粘粒、砂粒、碳酸钙含量对土壤速效磷比例影响显著,土壤CEC、粘粒、砂粒含量对土壤速效磷比例贡献为正值,而土壤有机碳对土壤速效磷比例贡献为负值;土壤pH和CEC含量对土壤水溶性磷含量影响显著,土壤pH对水溶性磷比例贡献为正值,土壤CEC对土壤水溶性磷比例贡献为负值。本文所选土样基本符合土壤磷有效性与土壤性质之间通径分析的结果。

关 键 词:土壤磷有效性  土壤性质  通径分析
收稿时间:2011/2/25 0:00:00
修稿时间:2011/5/24 0:00:00

Study on soil phosphorus availability and its relation to the soil properties in 14 soils from different sites in China
JIA Xing-yong,LI Ju-mei.Study on soil phosphorus availability and its relation to the soil properties in 14 soils from different sites in China[J].Soil and Fertilizer Sciences in China,2011(6):76-82.
Authors:JIA Xing-yong  LI Ju-mei
Institution:JIA Xing-yong1,LI Ju-mei1,2*(1.Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization,Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,2.State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008)
Abstract:The soil properties,total phosphorus,available phosphorus and water-soluble phosphorus were analyzed with 14 soil samples collected from different sites in China,the relationship between P availability and soil properties was analyzed by path analysis.Results showed that the comprehensive role of soil properties separately was on account of availability of soil phosphorus.The result of path analysis showed that there were significant positive effects of the amount of soil CEC,clay,sand and calcium carbonate...
Keywords:soil phosphorus availability  soil properties  path analysis  
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