For evaluating efficiency of AB-DTPA for multinutrient extraction from cardamom and pepper plantations, geo referenced soil samples were collected from 42 locations at Senapathi and 40 locations at Rajakumari in Idukki district of Kerala which are under cardamom and pepper plantations. Along with the soil samples, index leaves of cardamom and pepper plants from the corresponding locations were analyzed to correlate plant uptake with nutrient availability. Available nutrients in the collected soil samples were extracted with different extractants such as Bray No. 2 for phosphorus, ammonium acetate for K, Ca and Mg, 0.1 N HCl for the estimation of Fe, Mn, Zn and Cu. Available nutrients in these soils were also extracted with AB- DTPA. Correlation analysis revealed a significant positive correlation between available P, K, Zn and Cu extracted with commonly used extractants and that extracted with AB-DTPA in cardamom and pepper plantations. The uptake of P, Ca, Mg and Zn in cardamom was significantly positively correlated with available nutrients extracted with AB-DTPA. Similarly in pepper, the uptake of P, K and Cu was positively correlated with the available nutrients extracted with AB-DTPA. While, uptake of K, Fe, Mn and Cu in cardamom did not show any significant correlation with available nutrients extracted with AB-DTPA. Similarly, uptake of Ca, Mg, Fe, Mn, Zn and B in pepper did not show any significant correlation with available nutrients extracted with AB-DTPA.