Ahmed, et al (2024) Bridging Agro-science and Human Nutrition: Zinc nanoparticles and BiocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More as catalysts for enhanced crop productivity and biofortification. Front. Plant Sci. doi: 10.3389/fpls.2024.1435086

The integration of zinc nanoparticles (Zn NPs) with biochar is paving the way for more sustainable agriculture by boosting plant productivity and human nutrition. This innovative combination enhances soil health, optimizes nutrient uptake, and increases resilience to environmental stressors, resulting in better crop performance. Studies show that Zn NPs with biochar significantly improve the nutrient composition of crops, including proteins, vitamins, sugars, and secondary metabolites. This not only enhances plant tolerance to environmental challenges but also improves crop quality and shelf life.

By addressing the global issue of zinc deficiency, this method biofortifies food crops, increasing zinc levels in mung beans, lettuce, tomatoes, wheat, maize, rice, citrus, apples, and microgreens. Zn NPs and biochar also enhance soil properties, boosting water retention, cation exchange capacity, and microbial activity, which makes soils more fertile and productive. The porous nature of biochar ensures the slow and sustained release of zinc, maintaining its bioavailability over extended periods and reducing the need for frequent fertilizer applications. This synergy supports sustainable agricultural practices and minimizes the environmental footprint of traditional farming methods.

However, potential ecological risks like biomagnification, nanoparticle accumulation, and toxicity require careful consideration. Thorough risk assessments and management strategies are essential to ensure that the agricultural benefits do not compromise environmental or human health. Future research should focus on sustainable practices for deploying Zn NPs in agriculture, balancing food security and ecological integrity, and positioning this approach as a viable solution for nutrient-efficient and sustainable farming.