The paddy field is usually a flooded parcel regarding arable land employed for growing semiaquatic rice. Paddy cultivation should not be confused with farming of deep h2o rice, which is expanded in flooded problems with water in excess of 50 cm deep for at the very least a month. During the twentieth century, paddy field producing became the dominant way of growing rice. Mountain tribes of Thailand still cultivate dry-soil options called upland rice.