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Ammonium fixation in some tropical rice soils

 

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: 1015-1023

 

ISSN:0010-3624

 

年代: 1979

 

DOI:10.1080/00103627909366958

 

出版商: Taylor & Francis Group

 

关键词: Ammonium fixing capacity;ammonium fixation and soil properties;active iron

 

数据来源: Taylor

 

摘要:

The NH4+fixing capacity of 12 tropical rice soils was studied by treating 10 g soil samples with 50 mg NH4+as (NH4)2SO4dissolved in 20 ml of water, equilibrating for 2 h by continuous shaking and then extracting NH4+with 2 M KCl. The portion of NH4+added which was not extracted by KCl was termed fixed.

 

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