Agriculture, which began in the Neolithic Age in Korea, was considered the most important as a means of securing food from the Bronze Age. It was confirmed through the carbonized rice found in the house that rice was cultivated in earnest in addition to millet, sorghum, beans, and barley. Paddy fields with dikes, irrigation facilities, and fields with ridges and furrows have also been discovered as cultivated lands of this era. At that time, people plowed the fields with stone and wooden plowshares, hoes, and axes, and harvested grain with half-moon type or triangular stone knives and sickles. Adze, chisels, planing blades, etc. were also made and used a lot as polished stone tools for logging or making wooden agricultural tools