About HOSOYAMA TAKAO
About 農業技術研究機構 北海道農研セ
About 農業経済研究(Web)
About farm land
About local community
About Hokkaido
About region
About agriculture
About land
About agricultural management
About resource
About aging
About leased land
About paddy field zone
About large-scale management
About local resources
About farm house
About rural society
About Agricultural economy,agricultural management
About 北海道
About 水田地帯
About 借地
About 農村社会