Rice is a seed of Oryza sativa, which is a grass species. Domesticated rice is a main staple food in Asia and Africa. Traditionally, rice is cultivated by flooding the fields during and after setting the seedlings. This method reduces the growth of those weed and pest plants which have no submerged growth state and also controls vermin. Rice cultivation is favorable in those regions where rainfall is high and labor costs are low. There are some diseases that affect rice cultivation such as rice blast, sheath blight, rice ragged stunt and tungro. Rice blast is caused by the fungus Magnaporthe grisea. This book traces the progress of rice cultivation and processing, and highlights some of its key concepts. It will also provide interesting topics for research which interested readers can take up. The extensive content of this book provides the readers with a thorough understanding of the subject.