Division of Soil Science, University of Agricultural Sciences, Dharwad, Karnataka, 580 005.
* Present address: Division of Sail Science, Indian Institute of Horticultural Research, Hessaraghaua Lake Post, Bangalore, Karnataka 560 089.
Short term transformation and contribution of different fractions of copper for plant copper was studied. A bulk of the added copper was found associated with organic constituents. Application of copper to soils lead to increase in both potentially available and unavailable copper fractions. The contribution of copper present in inorganically bound form (25 per cent acetic acid extractable) to the plant copper was highest.
Copper fractions, transformation, copper in plant, path coefficient
