Quantity-Intensity Relationships of Potassium in Three Soils from West Bengal

The potassium supplying capacity of three alluvium-derived soils from West Bengal-Mrigindihi, Kharbona and Hanrgram, was investigated by employing the quantity-intensity approach. The values of PBC, K_L, K_O and K_X were considerably higher in the Hanrgram soil as compared with other soils. Potassium equilibrium activity ratio was in the sequence: Mrigindihi>Kharbona>Hanrgram. The relationships of Q-I parameters with physicochemical characteristics and mineralogy of soils are discussed.