According to the 'Wamyoruiju-sho' (Kango-Japanese Dictionary) that was published in the beginning of the 10th century, the Mutsu Province cultivated around 51,000 hectares, the Dewa Province around 36,000, which were very different from the original plan of a million hectares.
10世紀初めころ編纂された「和名類聚鈔」によると、陸奥国が約5万1,000町，出羽国が約3万6,000余町とあり両国合わせても10万町にも満たないほどであった。