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Zinc adsorption in soils in relation to soil properties

Indian Agricultural Research Journals

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Title Zinc adsorption in soils in relation to soil properties
 
Creator Hazra, G C
Mandal, Biswapati
 
Subject —
 
Description An experiment was conducted during 1992 to study adsorption of zinc in 12 soils, 6 each from alluvial and lateritic zones of West Bengal, in relation to soil properties. Adsorption was higher in alluvial (Aquept) (1.23 mg/g) than in lateritic soils (Ustalf) (0.67 mg/g) and the data were fitted well to Langmuir adsorption isotherm equation. The adsorption maxima and bonding-energy values computed from the equation were also higher for the former (1.61 mg/g soil and 0.25/ppm Zn respectively) than for the latter (0.97 mg/g soil and 0.031ppm Zn respectively) groups of soils. The higher values were due to higher oontents of olay, organic carbon, CaCO3, and amorphous Fe-oxides and higher cation- exchange capacity and pH of the alluvial soils. Significant positive correlations of adsorption maxima and bonding energy of Zn with clay (0.84** and 0.57**) cation-exchange capicity (0.78** and 0.77**), organic carbon (0.85** and 0.62**) and amorphous  Fe-oxides (0.83** and 0.78** ) contents of the soils support these observations. Other parameters related to adsorption, viz free energy, Zn-hydroxy potential, differential buffering capacity, and supply parameters, were also found Significantly related with the soil properties.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-06-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19066
 
Source The Indian Journal of Agricultural Sciences; Vol 65, No 9 (1995)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19066/9415
 
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