About KANEKO TAKEO
About TOYODA ISAMU
About INUDO TOME
About IWASA MASATOSHI
About NAGAMATSU TETSUYA
About NAKAJIMA KENJIRO
About HOSONO HIROSHI
About 熊本県農業研究センター研究報告
About paddy field
About Agricultural engineering
About 動力噴霧機
About 暗渠
About 目詰まり除去