Nanotechnology in Agronomy: Innovations in Crop Management

Agriculture is facing unprecedented challenges due to population growth, climate change, soil degradation, and declining resource availability, necessitating innovative and sustainable solutions to enhance crop productivity. Nanotechnology, involving the manipulation of materials at the nanoscale (1–100 nm), has emerged as a transformative tool in agronomy. It offers novel approaches for improving input efficiency, crop health, and environmental sustainability. This review explores the multifaceted applications of nanotechnology in crop management, focusing on nano-fertilizers, nano-pesticides, smart delivery systems, and nanosensors. Nano-fertilizers improve nutrient-use efficiency through targeted and controlled nutrient release, while nano-pesticides enhance the precision and efficacy of plant protection agents, minimizing ecological harm. Smart nanosystems enable real-time monitoring and need-based input application, aligning with the principles of precision agriculture. The paper also discusses the mechanisms through which nanoparticles influence plant physiology and their potential role in enhancing stress tolerance. While the benefits are substantial, concerns regarding nanoparticle accumulation, environmental toxicity, and human health risks underscore the need for rigorous safety assessments and regulatory frameworks. Looking forward, integrating nanotechnology with artificial intelligence and green synthesis approaches may pave the way for climate-resilient, resource-efficient, and sustainable agricultural systems.