About FUJITA NAOAKI
About 農研機構 北海道農業研究セ
About TSUJI HIROYUKI
About 農研機構 北海道農業研究セ
About 農業普及研究
About Beta vulgaris var.rapa
About transplanter
About harvester
About technology
About expansion(mathematics)
About area
About technological introduction
About new technique
About technology dissemination
About crop acreage
About Agricultural machines and facilities in general
About テンサイ
About 新技術
About 作付面積
About 予測
About 畦
About 移植機
About 収穫機
About 事前評価