<p>Due to their potential to boost plant development and agricultural productivity, nano fertilizers have become increasingly used in agriculture. Nano fertilisers are known to increase photosynthetic efficiency, enhance nutrient delivery, and protect plants from pests and illnesses. An investigation was needed to highlight the importance of titanium dioxide and zinc oxide nanoparticles (TiO₂ and ZnO NPs) in agriculture. This study examined the potential effects of ZnO and TiO₂ NPs on soil micronutrients. The impact of TiO₂ and ZnO NPs on soil micronutrient concentrations was evaluated before and after their addition. An ICP-OES instrument was used to determine the concentration of micronutrients in the studied soils. The impact of TiO₂ NPs was more effective than that of ZnO NPs on micronutrient concentration improvement. The Fe, Zn, Mn and Cu concentrations increased by 2.44, 197.94, 52.27 and 111.18%, respectively. The synergistic effects of the used NPs were investigated, and there were obvious changes in the concentration of micronutrients after adding NPs. The Fe, Zn, Mn and Cu levels changed in all soils due to adding TiO₂ and ZnO NPs. However, S_City and BS were more influenced than S_Agri and RS due to their high clay and organic matter content. This research uniquely demonstrated the effects of TiO₂ and ZnO nanoparticles on soil micronutrient concentrations and their interactions with other soil nutrients. </p>