About ISEMURA HIROSHI
About ヤンマーアグリ
About DOI KUNIO
About ヤンマーアグリ
About SAWAMOTO KAZUNORI
About ヤンマー
About BUTTA TOSHIHIRO
About ぶった農産
About HAMADA EIJI
About アグリスターオナガ
About JATAFFジャーナル
About paddy rice
About cultivation
About nursery plant
About nursing seedling
About seeding
About planting density
About rice transplanting
About transplanting
About labor saving
About cost reduction
About technology development
About paddy rice cultivation
About Rice cropping
About 苗
About 栽培技術
About 田植作業
About 低コスト化