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An evaluation of chemical methods for extracting zinc from soils

 

作者: J. E. Sedberry,   B. J. Miller,   M. B. Said,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1979）
卷期: Volume 10, issue 4  

页码: 689-701

 

ISSN:0010-3624

 

年代: 1979

 

DOI:10.1080/00103627909366929

 

出版商: Taylor & Francis Group

 

关键词: Extractable Zn;air‐dried soils;flooded soils;rice

 

数据来源: Taylor

 

摘要:

The quantity of Zn extracted from 25 samples of air‐dried soil was larger than that extracted from soils that were flooded for six weeks. The order of the quantity of Zn extracted from samples of air‐dried soils was: 0.1NHCl > EDTA + 1NNH4OAC > EDTA ‐ (NH4)2CO3> 1NNH4OAc, pH 4.8 > DTPA‐TEA, pH 7.30. The order of the quantity of Zn extracted from the flooded soils with four extracting solutions was: 0.1NHCl > 1NNH4OAc, pH 4.8 > EDTA‐(NH4)2CO3> DTPA‐TEA, pH 7.30. Flooding with distilled water resulted in an increase in the pH of all of the soil samples.

 

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