Departmental Bulletin Paper わが国の水田農業の構造変動とその対応方向
Changing Structure and the Corresponding Direction of Japanese Paddy Field Agriculture
ワガ クニ ノ スイデン ノウギョウ ノ コウゾウ ヘンドウ ト ソノ タイオウ ホウコウ

門間, 敏幸  ,  Toshiyuki, Monma  ,  国立研究開発法人農業・食品産業技術総合研究機構中央農業総合研究センター  ,  National Agriculture Research Center, National Agriculture and Food Research Organization

61 ( 1 )  , pp.6 - 16 , 2016-06-20
We predicted a structural change in Japanese rice field agriculture using the data of indi­vidual farm-households of the agricultural and forestry census of 2010. The study area is the municipality of Tohoku, Kanto and Hokuriku district, and coastal areas of Miyagi and Fukushima Prefecture which received tsunami damage by the Great East Japan Earthquake of 2011. The result of analysis shows that although slightly different according to region, the number of farms who may continue production as large-scale paddy rice field farming come to less than 1-5% in flatland areas, and less than 1% in the hilly and mountainous areas. The ratio of farm households who keep to the present farming was predicted to be 15-30%, while the ratio of farm households retiring from agriculture was predicted to be 60-80%. When a large-scale farmer leased farmland from retired farmers to enlarge the farming scale, it became clear that management scale was around 100 ha in flatland areas and more than 100 ha in hilly and mountainous areas. In addition, in the coastal areas of Miyagi and Fukushima Prefecture that received tsunami damage, many of the farmers abandoned agricultural production because of the loss of machines in the tsunami. On the other hand, new agricultural corporations born after the earthquake disaster collected the farmlands of those farmers who gave up farming and were able to realize a management scale of more than 100 ha. To realize the stable development of this kind of large-scale new agricultural corporation, new technology development and custom-made technology extension service are required.

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