Nano Urea: Predictive Insights and Real-World Implications for Sustainable Agriculture

Nitrogen is essential for agriculture, yet conventional urea loses over 60% of its applied nitrogen, causing environmental harm. Nano urea, engineered as nanoparticles (20–100 nm) via chemical and green synthesis, enhances nitrogen use efficiency (NUE) to 60–80%, nearly double that of conventional urea. It enables targeted nutrient delivery, increasing crop yields (15–30%) and improving fruit quality, including higher sugar content (15–20%) and extended shelf life (30%). Environmentally, it reduces ammonia volatilization (40–60%), nitrous oxide emissions (30–50%), and nitrate leaching (50–70%), enhancing climate resilience. Despite higher initial costs, it lowers input expenses by $80–120/hectare. Challenges include soil variability, ecological risks, and adoption barriers. Future advancements in precision agriculture, CRISPR-edited crops, and agro-waste-derived carriers could enhance its sustainability. Aligned with SDGs 2 and 13, nano urea offers a climate-smart agricultural solution, balancing food security with environmental preservation.