About KANETA YOSHIHIRO
About 秋田県農試
About TSUCHIYA KAZUNARI
About 秋田県農試
About 日本土壌肥料学雑誌
About paddy rice
About 被覆尿素
About Rice cropping
About Fertilizer application and efficiency
About Soil management
About 育苗箱
About 全量
About 施肥
About 不耕起
About 移植
About 水稲
About 窒素
About 利用率
About 気象変動