About ISHIBASHI EIJI
About 岡山県農試
About AKAI NAOHIKO
About 岡山県農試
About OYA MASAYA
About 岡山県農試
About KAWANAKA KOJI
About 岡山県農試
About 土壌の物理性
About paddy rice
About Soil physics
About Rice cropping
About 不耕起
About 乾田直播栽培
About 継続
About 土壌
About ち密
About 減水深