About SAKAMOTO DAISUKE
About 農業・食品産業技術総合研究機構
About 農研機構技報
About Pyrus pyrifolia
About winter
About growth inhibition
About germination
About fertilization(cultivation)
About nitrogen fertilizer
About freezing damage
About frost resistance
About flower bud
About plant physiological disease
About open-field culture
About warm winter
About germination inhibition
About nitrogen application
About Fruit trees
About Plant physiological disorders in general
About Fertilizer application and efficiency
About 窒素
About ナシ
About 発芽
About 開発