This book provides knowledge on the nutrition aspects of Kinnow mandarin. This research conducted mainly on integrated nutrient management (includes the inorganic and organic sources of fertilizers)in Kinnow mandarin which is exhaustive crop requires huge nutrients for growth and development of fruit and as well tree. Second part of this research was on micro-nutrient and their effects on fruit and tree. Third part this research was on chemicals/growth regulators, which covers the development of coloure and quality Kinnow mandarin fruit.