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Diffusion of Zinc as Influenced by Physical and Chemical Properties of Soils
Author(s) -
Deb D. L.,
Sen A.,
Rattan R. K.,
Meisheri M. B.,
Gupta G. N.,
Sharma K. N.
Publication year - 1983
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19831460410
Subject(s) - zinc , soil water , diffusion , chemistry , water content , bulk density , moisture , compaction , mineralogy , soil science , analytical chemistry (journal) , environmental chemistry , materials science , thermodynamics , geology , geotechnical engineering , physics , organic chemistry , composite material
The self diffusion coefficients of zinc (D a Zn), determined by half cell technique, were found to be greatly influenced by variations in soil characteristics such as volumetric moisture content, bulk density, temperature, carrier zinc concentration and soil pH. The D a Zn values showed exponential decrease with increase in soil pH but with increasing volumetric moisture content, D a Zn values showed logarithmic increase. The highest D a Zn value was obtained at a compaction of 1.50 g/cm 3 . Increase in temperature from 5°C to 30°C showed 4 to 20 times increase in D a Zn values. An attempt was made to study the relationship between soil characteristics and D a Zn values for 87 illitic soils differing in physical and chemical properties. The simple and multiple correlation coefficients did not account for more than 21 per cent of variations indicating that D a Zn values cannot be predicted accurately from soil properties.