About MURATA KIMIO
About 群馬県農試
About OKISHIMA TOSHIHIKO
About 群馬県農試
About KANEKO ITSUYA
About 群馬県農試
About 群馬県農業試験場研究報告
About agricultural management
About Agricultural economy,agricultural management
About Agricultural machines and facilities in general
About 区画
About 水田
About 稲
About 麦
About 大豆
About 機械化
About 体系