About TAKAYAMA TAISUKE
About 北海道大学大学院農学研究院
About NAKATANI TOMOAKI
About 北海道大学大学院農学研究院
About 農業情報研究(Web)
About mountainous region
About land use
About Hokkaido
About institution
About agricultural policy
About activation
About evaluation
About cultivation
About regional development
About abandonment of cultivation
About 中山間地域等直接支払制度
About policy assessment
About rice crop
About Agricultural economy,agricultural management
About Crop cultivation in general
About 中山間地域
About 直接支払
About 制度
About 耕作放棄
About 抑制効果
About 北海道
About 水田
About 畑作