Comparative Evaluation of Inductively Coupled Plasma–Atomic Emission Spectroscopy and Colorimetric Methods for Determining Hot-Water-Extractable Boron in Soils

Sahrawat, K L and Shirisha, K and Murthy, K V S and Gajbhiye, P N and Kundu, S and Wani, S P and Pardhasaradhi, G (2012) Comparative Evaluation of Inductively Coupled Plasma–Atomic Emission Spectroscopy and Colorimetric Methods for Determining Hot-Water-Extractable Boron in Soils. Communications in Soil Science and Plant Analysis, 43 (6). pp. 948-957. ISSN 0010-3624

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Abstract

Frequency of boron (B) deficiency is increasing in rainfed systems, and hence there is a need to diagnose the deficiency. Colorimetric methods are still widely used in soil-testing laboratories in India for measuring B. Little information is available on the comparative evaluation of the colorimetric and inductively coupled plasma (ICP) methods for determining extractable B in soils. We describe results of the comparative evaluation of these methods for measuring extractable B in 57 soil samples with pH values ranging from 5.3 to 9.5. There was a significant correlation between B values determined by the two methods, and the correlation coefficient was greater for soil samples with pH in the neutral to alkaline range. Interaction between soil samples and methods (ICP or colorimetric) was significant except for soil samples in the pH range of 8.0 to 9.5. Precision for B determination was greater with the ICP than with the colorimetric method.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Uncontrolled Keywords: colorimetric method, correlation coefficient, diagnosis of B deficiency, extractable boron, ICP-AES, soil testing, soil type
Subjects: Others > Soil Science
Depositing User: Mr Siva Shankar
Date Deposited: 29 Mar 2012 06:23
Last Modified: 29 Mar 2012 06:23
URI: http://oar.icrisat.org/id/eprint/5788
Official URL: http://dx.doi.org/10.1080/00103624.2012.653030
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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