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An evaluation of chemical methods for extracting copper from rice soils1

 

作者: J. E. SedberryJr,   D. P. Bligh,   M. Y. Eun,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1988）
卷期: Volume 19, issue 16  

页码: 1841-1857

 

ISSN:0010-3624

 

年代: 1988

 

DOI:10.1080/00103628809368055

 

出版商: Taylor & Francis Group

 

关键词: Copper;Oryza Sativa;Chemical Methods

 

数据来源: Taylor

 

摘要:

Rice (Oryza sativaL. CV. Lemont) was grown on 19 soils, and eight extractants were evaluated for determining the availability of Cu to rice plants. Correlation analyses were employed as criteria for evaluating methods that would provide the best index of Cu availability. The order of removal of Cu from soils was: 0.5NHC1 + 0.05NA1C13> 0.5NHNO3> 0.5 N HC1 > EDTA + NH4OAc > 0.1NHC1 > EDTA + (NH4)2CO3≫ DTPA‐TEA, pH 7.3 >>> 1 N NH40Ac, pH 4.8.

 

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