The imported iron was used to make agricultural implements such as hoes and harrows, bringing about a revolution in agricultural technology and increasing land cultivation, which led to a rapid increase in Wakoku's agricultural production capabilities around the end of fourth to the fifth century.
輸入した鉄資源をもとに鍬・鋤などの農業用鉄製品が製造され、農業技術の革新・開墾の活発化などが起こり4世紀後葉から5世紀にかけて倭国の農業生産力は大きく向上した。