Rice (Oryza sativa L.) is one of the most important food grain crops of more than 60 percent of the world's population. About 90 percent of all rice grown in the world is produced and consumed in the Asian region. Among the micro nutrients for plant growth, Zinc, Iron and Boron are essential for good growth of rice, human and children. Multi-nutrients deficiency appeared in wide spread in agricultural crops due to its over exploitation, without application of micro-nutrients or imbalance use of nutrients to rice crop. This book useful for researcher and students.