Abstract
Many developing countries are facing a silent increase in deficiency of micronutrients in forage crops that results in decreased levels of essential nutrients in animals. Micronutrients are essential not only for basic metabolic processes of forage crops but also for sustaining animal health. Forage productivity and quality are severely affected by soil micronutrients deficiencies, especially zinc and copper. This review summarizes the literature highlighting the significance of different methodologies used to increase the biomass and quality of forage so as to enhance the micronutrient content of the forage crops through biofortification. Biofortification is a promising and sustainable agriculture-based strategy to reduce micronutrient deficiency in crops. The experiments and trials conducted at different locations of the world showed that copper and zinc concentrations in animal fodders can be enhanced through the process of foliar application. Additionally, agronomic biofortification showed more promising results, and thus is an outstanding, fast, and cost-effective technique for the immediate enrichment of forage in order to overcome malnutrition in animals. © 2022 Society of Chemical Industry.
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