Question:
Some sources claim that it was as early as 400 B.C. while other claim that it was introduced as far back as 3000 B.C.
Help Please!
Answer:
At present, the oldest remains of a rice paddy field in Japan as determined by carbon 14 measurement dates back to 2800 ro 3000 years.
This link is very comprehensive site about rice cultivation though in japanese:http://ja.wikipedia.org/wiki/%E7%A8%B2%E…
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