About SHIMIZU MOTOSHIGE
About 北海道十勝農試
About SHIMIZU MOTOSHIGE
About 道総研 中央農試
About TAMURA HAJIME
About 北海道十勝農試
About TAMURA HAJIME
About 道総研 十勝農試
About SUMINO AKIO
About 北海道中央農試
About SUMINO AKIO
About 道総研 道南農試
About potato
About organic farming
About industrial engineering
About production technology
About sodium hydrogencarbonate
About vinegar
About Phytophthora
About disaster countermeasure
About pest control
About copper fungicide
About organosulphur compound
About diamine
About Phytophthora infestans
About stable production technology
About sodium bicarbonate
About copper compound wettable powder
About potato
About countermeasure for pest control
About organic cultivation
About Chemical pest control
About Tubers(=corms)
About Manzeb
About 北海道
About 有機栽培
About ばれいしょ
About 安定生産技術
About ジャガイモ
About 疫病
About 防除対策