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A comparison of the effectiveness of various extractants for determining humus quality in a calcareous soil

 

作者: R.A. Rosell,   M.I. Ortiz,   L. Quevedo,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1971）
卷期: Volume 2, issue 4  

页码: 275-282

 

ISSN:0010-3624

 

年代: 1971

 

DOI:10.1080/00103627109366315

 

出版商: Taylor & Francis Group

 

关键词: Humus;humus quality;humic to fulvic acids ratio;E4/E6ratio;chelating resin;soil survey and fertility

 

数据来源: Taylor

 

摘要:

Humic substances from an Argentinian chesnut (Mollisol) soil were extracted with Na‐Dowex A‐1 resin, 0.1 N NaOH and 0.1 M Na4P2O7without decalcification and with 0.1 N NaOH after decalcification. Humic to fulvic (Ch/Cf) acid and E4/E6ratios of the extracts were determined and compared.

 

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