The Long-Term Fertilizer Experiments (LTFEs) are invaluable for the study of yield trends, changes in nutrient dynamics and balances, predicting soil carrying capacity, assessing soil quality and system sustainability and risk management. In India, the LTFEs were established in the early seventies of the last century. Since then, these experiments are assessed periodically for the changes of soil fertility or biochemical parameters. In recent years, trends of soil fertility changes in many of the long-term studies in India or elsewhere have been reported from samples obtained after the crop...