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An efficient nutrient management approach, either product- or process-based, is instrumental for sustainable crop production. Nutrient management approaches emphasize reducing nutrient surplus into the agro-ecosystem, maintaining nutrient balance, and improving nutrient use efficiency. These fertilizers are subjected to poor nutrient use efficiency, leading to significant losses due to immobilization, denitrification, leaching, and run-off. These fertilizers contribute to water and air pollution and demand higher costs of cultivation. To overcome these problems and to increase food grain production, sustainable and environment-friendly approaches must be implemented. In this context, the intervention of nanotechnology for nutrient management in terms of nanofertilizers has immense potential to enhance the quality and quantity of food in a sustainable manner. Nanofertilizers may provide solutions to problems …