About TAKAGI YOJI
About 上川農業改善普及セ 士別支所
About robot
About tractor
About combine
About demonstration experiment
About base station
About rice transplanter
About transplanting
About labor saving
About price
About versatility
About GPS
About GPS
About RTK-GPS
About demonstration
About Rice cropping
About Agricultural machines and facilities in general
About Machines for field operations
About Agricultural economy,agricultural management
About 大型
About 水田
About 田植機
About RTK-GPS
About オート
About ステアリング
About 士別市
About 農地
About 再編
About 整備
About 事業
About GPS