Characterisation of Soil Potassium and Quantity/Intensity Relationship of Potassium in Some Coastal Soils

Twenty five soils from different coastal areas of Or issa and West Bengal were studied for their different fractions of potassium and the Q/I relationship in relation to the potassium supplying capacity to plants. The study indicates that the soils are rich in water soluble, exchangeable, non-exchangeable and available K. The potassium buffering capacity (PBC^K) and Gibb's free enery (?F) also indicate that the soils have high potassium supplying capacity. There is a good correlation between clay content and non-exchangeable K/potassium buffering capacity of soil.