About SUGISAKI MEI
About 宇都宮大 大学院農学研究科
About OSAWA KAZUTOSHI
About MATSUI HIROYUKI
About 農業農村工学会大会講演会講演要旨集(CD-ROM)
About paddy field
About nitrate nitrogen
About denitrification
About fertilization(cultivation)
About water pollution
About indoor test
About hydraulic model test
About mean flow velocity
About Water pollution in general
About Agricultural engineering
About 田面水
About 流速
About 硝酸態窒素
About 除去機能