Early paddy field remains including continental ground stoneware and carbonized rice were concentrated and discovered in the northern Kyushu region, such as the Itazuke site located at Hakata Ward, Fukuoka City, Nabatake site located at Karatsu City, Saga Prefecture, Magarita site located at Fukuoka Prefecture and Notame site located at Fukuoka Prefecture.
初期の水田は、福岡市博多区にある板付遺跡や、佐賀県唐津市の菜畑遺跡、福岡県曲り田遺跡、福岡県野多目遺跡などで水田遺跡や大陸系磨製石器、炭化米等の存在が北部九州地域に集中して発見されている。