About SUGITO TOMOKO
About 農研機構 北農研
About KIMIWADA KENJI
About 農研機構 北農研
About OKA NORIKUNI
About 農研機構 北農研
About HASHIMOTO TOMOYOSHI
About 農研機構 中央農研
About 日本土壌肥料学会講演要旨集
About organic substance
About organic fertilizer
About phosphoric acid
About sterilization
About soil management
About cultivation
About available phosphoric acid
About crop cultivation
About solar heat soil disinfection
About Fertilizer application and efficiency
About Physical pest control in general
About 有機物
About リン酸
About 太陽熱土壌消毒
About 畝立
About 消毒
About 体系
About 推定