Rice is one of the seven most important cereals and forms a staple food source for a large part of humanity. Various cereals, the trade as wild rice are referred belong botanically to rice genus.
Rice is grown in various ways. The upland rice without flooding the field, differs from flooded rice where the water level is not controlled, and irrigated rice where the presence of water and its level is controlled by the farmer. Field-grown rice is called paddy.
