農薬・化学肥料を使わなくてすむ合鴨（hybrid duck)を用いた稲作、その由来と系譜。
History of the Hybrid duck organic rice farming. Mr,Arata Seikou is the founder of the Hybrid duck rice farming.In 1985,Mr Arata Seikou, a Japanese organic farmer has begun organic rice farming using hybrid ducks.Hybrid ducks act as weed browser and provider of fertilizer .His originalities are derived from love for lives and for enviroments of his home town. . . . 本文を読む