Metribuzin mobility in soil column as affected by environmental and physico-chemical parameters in Mumias sugarcane zone, Kenya
Publication Date
2011-03Author
Kowenje, C.O
Lagat, S.C
Lalah, J.O
Getenga, Z.M
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Show full item recordAbstract/ Overview
The physico-chemical parameters of soil, influences the soil solution characteristics and that may affect the
sorption of soil applied herbicides. The present investigation reports the influence of physico-chemical parameters sorption
and leaching of metribuzin, a triazine herbicide. The Kf (Freundlich adsorption coefficient) values of metribuzin were 14.9
µg/K which suggests that sorption as a function of herbicide concentrations and (1/n) value of 0.20 µg/L reflecting the
degree of sorption of the herbicide. For leaching the amounts of metribuzin leached were 89.83% of applied quantity this is
due to effects of various physicochemical factors and climatic conditions in tropical soils. The study concludes that less
than 10.17% of applied metribuzin remains in the soil. However from agricultural point of view, the amounts are trivial,
but from environmental (including potential ground water contamination) point of view, small residues are important
factors to consider.
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- Department of Chemistry [326]