About TAMURA HAJIME
About 北海道十勝農試
About TAMURA HAJIME
About 道総研 十勝農試
About KATO JUN
About 北海道十勝農試
About KATO JUN
About 道総研 中央農試
About SHIMIZU MOTOSHIGE
About 北海道十勝農試
About SHIMIZU MOTOSHIGE
About 道総研 中央農試
About TAKEUCHI HARUNOBU
About 北海道十勝農試
About TAKEUCHI HARUNOBU
About 道総研 十勝農試
About Hokkaido
About organic farming
About science and technology
About stabilization
About potato
About crop yield
About pathogen control
About cultivar
About variety selection
About breed specificity
About food property
About food analysis
About sensory test
About energy nutritive value
About disease resistance
About cultivation technology
About starch score
About organic cultivation
About Tubers(=corms)
About Cultural pest control
About 北海道
About 有機栽培
About ばれいしょ
About 安定生産技術
About 収量
About ジャガイモ
About 疫病
About 品種