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Alternative use of the SMP‐buffer solution to determine lime requirement of soils

 

作者: J.A. Quaggio,   B. van Raij,   E. Malavolta,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1985）
卷期: Volume 16, issue 3  

页码: 245-260

 

ISSN:0010-3624

 

年代: 1985

 

DOI:10.1080/00103628509367600

 

出版商: Taylor & Francis Group

 

关键词: CEC;base saturation;lime requirement

 

数据来源: Taylor

 

摘要:

A close relationship was found between the pH of soil suspensions in the SMP buffer solution (pHsmp) and the potential acidity of soils (H + Al) extracted by a neutral calcium acetate solution (r = 0.98), for twenty six soil samples of the State of Sao Paulo, Brazil, This relationship was represented by the equation lnY = 7.76 ‐ 1.053X, which allowed for the calculation of H + Al directly from the values of pHsmp.

 

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