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Not AvailablePotassium is an essential element for plant growth and production. The Vertisols are generally rich in available potassium reserves for supplying potassium to plant. In present agriculture scenario the negative balance of potassium goes on increasing because crops remove more K than N and P. Under such condition there is need to focus on K fertility status of soil. On the other hand, there is an anomaly regarding crop response to applied potassium in some Vertisols of India. This review paper provides information important to the understanding of soil potassium status and its behavior in Vertisols.Not Availabl