Fig. 7From: Improved iron use efficiency in tomato using organically coated iron oxide nanoparticles as efficient bioavailable Fe sourcesComparison between the organically coated iron oxide nanoparticles and Fe3O4 NPs in (a) fresh biomass of the tomato plants, (b) dry weight of the tomato plants, and (c) Shoot total Fe. Error bars represent a standard error (n = 3). The shoot total Fe has been reported based on mg of Fe per Kg of shoot dry mass). The concentration of iron fertilizers has been reported based on mg of Fe per Kg of soilBack to article page