About KANMURI HIDEAKI
About 農研機構 東北農業研究セ
About SEKIYA HIROYUKI
About 農研機構 東北農業研究セ
About OTANI RYUJI
About 農研機構 東北農業研究セ
About paddy soil
About cultivation by direct seeding
About tillage
About compressive load
About cultivation
About water permeability
About condition
About hydraulic conductivity
About soil profile
About hardness
About physical properties of soil
About plowing
About direct seeding cultivation on dry paddy field
About soil hardness
About soil condition
About rice cultivation
About paddy rice cultivation
About paddy soil
About compression
About Rice cropping
About Soil physics
About 水田
About 土壌
About プラウ耕
About 鎮圧
About 体系
About 乾田直播栽培
About 適用性