%0 Journal Article
%@ 0974-0228
%A Shailaja, S
%A Sahrawat, K L
%D 1994
%F icrisat:4234
%I Indian Sociely of Soii Science
%J Journal of the Indian Sociely of Soii Science
%N 2
%P 329-330
%T Phosphate Buffering Capacity and Supply Parameters Affecting Phosphorus Availability in Vertisols
%U http://oar.icrisat.org/4234/
%V 42
%X Phosphorus availability to plants has been variously  correlated with the soil P supply factors of quantity,  intensity and buffering capacity. The underlying  cause of the differing importance of quantity,  intensity or buffer capacity to P availability is  probably the relative effect of these factors on the  diffusion of P. Phosphorus is primarily transported to  the root surface through the process of diffusion (Wild  1981). Olsen and Watanabe (1963) estimated on the  concentration ofP in the soil solution (intensity), the  ability of the soil to replenish solution P (i.e. buffer  capacity and the diffusion coefficient ofP in soil).