The importance of balanced crop nutrition as a national imperative, essential to double farm income, is well recognized over the decades. With the efforts of the Micro Fertilizers and Specialty Plant Nutrition industry, millions of Indian farmers have been made aware of the good agricultural practices that lead to sustainably feeding their crops with all essential plant nutrients. The role of each micronutrient has been carefully demonstrated using demos, trials and extensive field research. To chronicle the industry wide current body of research on micronutrient fertilisers, their importance, availability, methods of supplementation and role in integrated nutrient management, IMMA presents with great pleasure this Compendium on various aspects of Micronutrient Nutrition. With this rich pool of latest information, farmers, industry colleagues and the scientific community will undoubtedly find this Compendium as an essential reference for everything related to the Micro Fertiliser Industry. The agricultural demonstrators, policy makers and agri extension workers would also find this Compendium very useful.