Evaluation of P Availability Indices for Pearl Millet

A pot experiment conducted with 20 soils varying widely in their P availability to predict P responses to pearl millet and to evaluate various P availability indices showed that crop responded significantly to P application. Dry matter yield, P concentration and P uptake increased with rise in soil P. Both A1-P and saloid-P controlled P availability in these soils as they correlated significantly with various parameters. Among the various methods to extract available P, Olsen's method was found to be the most suitable in modified form.