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Evaluation of some chemical extractants for determination of exchangeable ammonium in tropical rice soils1

 

作者: K. L. Sahrawat,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1979）
卷期: Volume 10, issue 7  

页码: 1005-1013

 

ISSN:0010-3624

 

年代: 1979

 

DOI:10.1080/00103627909366957

 

出版商: Taylor & Francis Group

 

关键词: Normality;pH;extracting solutions;KCl;Nacl;Morgans reagent;MgO;rice soils

 

数据来源: Taylor

 

摘要:

Seven rice soils varying in texture, pH, organic matter and total nitrogen content were extracted with 1Nand 2NKCl, 1Nand 2NNacl, 10% Nacl at pH 2.5,NCH3CooNa at pH 3.0, and Morgan's reagent using a soil: solution ratio of 1:10. The ammonium in the extracts was determined by steam distillation with MgO.

 

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