Hidden hunger (micronutrient deficiency) is a global problem, with iron, zinc and selenium being the highly contributing members. Among these, iron deficiency is the most concerning. Deficiency of iron during pregnancy or in earlier childhood impairs the cognitive and behavioural development of children. Since the loss of iron from human body is minimal, iron deficiency occurs mainly because of insufficient intake. Therefore, increasing the iron content of vegetables (biofortification) is necessary, in order to meet the daily nutritional needs of humans. We conducted a field study in Fall 2024, comparing different iron fertilizers (FESO4, Fe-EDTA
