Biofortification: A novel approach for enrichment of cereal grains with Zn and Fe

Zinc and iron deficiencies in human nutrition are widespread in developing countries of the world where cereal crops are the major staple food. Effects are therefore underway to develop cereal genotypes with grains denser in Zn and Fe by traditional plant breeding or using genetic engineering techniques. This approach requires a long period and adequate funds. However, the products of genetic engineering are not well accepted in many countries. Agronomic biofortification is the easiest and fastest way for biofortification of cereal grains with Zn and Fe. Agronomic biofortification is the only way to reach the poorest of the poor rural masses, which will never have money to buy mineral supplements. Foliar application is better and requires lesser amount of Fe and Zn fertilizers than their soil application. Zinc and iron application increases concentration in produces as well as grain yield under nutrient deficient soil.