日本で稲作がいつから始まった？
Phytolithic studies indicate that dry-field rice may have been in Japan as early as the Early Jōmon, about 6000 years ago. Wet-field rice agriculture was introduced into Japan between the Final Jōmon and the Early Yayoi periods. It is thought that this started the archipelago's agricultural revolution with its first intensive crop production. Rice occupies an emotional place in Japanese history, society, and political economy (Hsu, 1994).
6000 years ago