| Later, this method succeeded because of the availability of material supply and transport, closeness of the field as a reference, the establishment of selection methods, and the formularization of cultivation of immature trees. |
その後、材料調達・運搬の容易さ、原野という参照項の手近さ、選定方法の確立、未成木の植栽方法の定式化によってこの方法は伝えられた。 |