Adsorption-desorption of Boron in Major Soils of India


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Authors

  • Abir Dey, B.S. Dwivedi, M.C. Meena and S.P. Datta

Keywords:

Boron, adsorption, desorption, Vertisols, Inceptisols, Alfisols, soil characteristics

Abstract

Studies on adsorption of boron (B) undertaken in 12 soils representing different agro-ecological regions ofIndia revealed that the adsorption of added B was in the order: Vertisols > Inceptisols > Alfisols. Higherthe concentration of added B solution, greater was the variability in B adsorption. Soil within each orderalso differed in B adsorption. Of the three adsorption equations namely, Freundlich, Langmuir and Temkinfitted to the data, Freundlich and Langmuir equations explained the adsorption behaviour of the soils, yetbased on prediction coefficients (R2) Freundlich appeared the best fit for Vertisols and Inceptisols, andLangmuir for Alfisols which showed lowest B adsorption. Freundlich constant ‘a’ and Langmuir constant‘b’ were positively correlated with free CaCO3, CEC and clay content. Desorption of added B was in theorder: Inceptisols > Vertisols > Alfisols. Desorption of B increased with an increase in soil pH, whereas itdecreased with an increase in organic C, clay and CEC.

Author Biography

  • Abir Dey, B.S. Dwivedi, M.C. Meena and S.P. Datta
    Division of Soil Science and Agricultural Chemistry, Indian Agricultural Research Institute,New Delhi, 110 012

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Issue

Vol. 61 No. 3 (2013): Journal of the Indian Society of Soil Science

Section

Articles

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How to Cite

and S.P. Datta, A. D. B. D. M. M. (2013). Adsorption-desorption of Boron in Major Soils of India. Journal of the Indian Society of Soil Science, 61(3). https://epubs.icar.org.in/index.php/JISSS/article/view/35616