PROBLEM TO BE SOLVED: To provide a plant cultivation method and molded culture soil usable by being set in a plant cultivation container, in which overcrowdedness of roots hardly occurs, oxygen and nutrients are easily supplied to the roots, and growing and raising the plant are easily promoted.SOLUTION: Sub root spreading molded culture soil or covered molded culture soil of which the outer periphery is covered by covering material is placed outside main root spreading molded culture soil or covered molded culture soil plants are cultivated and grown and raised in the main root spreading molded culture soil, making the roots of the plants extend to the sub root spreading molded culture soil or the covered molded culture soil and then the main root spreading molded culture soil or the covered molded culture soil is removed from inside the sub root spreading molded culture soil or the covered molded culture soil, or the sub root spreading molded culture soil or the covered molded culture soil is removed from the periphery of the main root spreading molded culture soil or the covered molded culture soil, so that the roots are cut, thereby stimulating the roots and promoting new rooting.COPYRIGHT: (C)2015,JPO&INPIT【課題】 根詰まりし難く、根に酸素や栄養が供給され易く、植物の生育、成長が促進されやすい植物栽培方法と植物栽培容器にセットして使用可能な成型培土を提供する。【解決手段】 主根張用の成型培土又は成型培土の外周が被覆材でカバーされた被覆成型培土の外側に副根張用の成型培土又は被覆成型培土が配置され、主根張用の成型培土で植物を栽培して生育、成長させて、その植物の根が副根張用の成型培土又は被覆成型培土まで展伸してから、主根張用の成型培土又は被覆成型培土を、副根張用の成型培土又は被覆成型培土の内側から取り除くか、又は副根張用の成型培土又は被覆成型培土を、主根張用の成型培土又は被覆成型培土の周囲から取り除くことにより、前記根を切断して当該根を刺激して新たな発根を促進させる。【選択図】図1
