About KUDO AKIHIKO
About 東北大 大学院農学研究科
About agricultural science
About environmental science
About agriculture
About improvement
About agricultural policy
About farm
About Japan
About agricultural structure
About sustainable agriculture
About reformation
About 環境農学
About Agricultural economy,agricultural management
About Environmental sanitation and environmental pollution control in general
About 環境農学
About 地域環境
About 農業構造
About 改革