About ITO HIROTAKE
About 東京農大 生物産業
About YOSHIOKA CHIYO
About 網走農業改良普及セ 清里支所
About SHIBATA TOSHIMITSU
About 石狩農業改良普及セ 石狩北部支所
About SATO FUMIHIRO
About 渡島農業改良普及セ
About YOSHIDA HOZUMI
About 東京農大 生物産業
About distribution
About nitrogen
About soil component
About fall seeding wheat
About crop yield
About volcanic ash
About root system
About nitrate nitrogen
About Hokkaido
About nitrogen form
About nitrogen cycle
About material dynamics in soil
About soil nitrogen
About distribution of root system
About 清里町
About nitrogen dynamics
About 土壌窒素動態
About Soil chemistry
About Wheats and barleys
About Development,growth,differentiation
About 地区
About 根系分布
About 土壌
About 窒素動態
About 秋播き
About コムギ
About 要因