Utilization of nanoscale materials in agribusiness are as yet in earliest stages contrasted with clinical and mechanical areas. The effect of, zinc oxide nanoparticles and humic acid (HA) coated nanoparticles were evaluated for Brassica campestris seed germination. A simple one-pot method was used to synthesize HA/ZnO NPs involving zinc oxide nanoparticles (ZnO) core (20-35 nm in diameter) and humic acid shell. HA/ZnO NPs were used to investigate the effect on the germination profile of Brassica campestris. Germination profile parameters were measured as root-shoot length, germination index, fresh and dry weight for 15 days. HA/ZnO NPs were confirmed with various physicochemical techniques such as X-ray diffraction, Fourier transform infrared (FTIR), UV-Vis spectroscopy, and scanning electron microscopy (SEM).The data confirmed the adsorption of humic acid on the surface of ZnO nanoparticles. The HA/ZnO NPs exposure significantly increased germination by 83 %, root length (60 %), shoot length (78 %), fresh weight (71.4 %) and dry weight (45.9 %).. The HA/ZnO NPs were applied as co-fertilizer to upgrade the Brassica campestris seed germination. Seeds may have assimilated NPs, which thus might prompt the union of specific catalysts, working with the food activation. This investigation exhibited that HA/ZnO NPs can be a capable co-compost, giving zinc and HA to seed.
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