PROBLEM TO BE SOLVED: To provide an implement for raising plant-seedling in short-term with which plant seedlings having long roots suitable for fix planting in an area where an underground water-bearing layer containing high-quality aqueous content lies at a depth of &ge1 m and further at a depth of &ge1.5 m from the ground surface can be raised to provide a method for raising the plant seedlings in a short term to provide a fix-planting plant-seedling set and to provide a method for planting seedlings.SOLUTION: The implement for raising plant-seedling in short-term is provided with a plurality of short cylindrical bodies to each of the bottom opening parts of which a net member preventing plant seedling-raising material from getting off is attached and in each of the inner parts of which raising material is filled, and a connectedly fixing means which connectedly fixes the short cylindrical bodies in layers in a longitudinal direction so as to have a length enough to reach the underground water-bearing layer of the ground for fix planting wherein the raising material in each of the short cylindrical bodies is regulated to have hardness enabling increase in downward growth rate of the plant seedling fixed to the inside of the upper opening part of the uppermost part of the short cylindrical body of the layered and connected short cylindrical bodies.COPYRIGHT: (C)2008,JPO&INPIT【課題】良質な水分が含まれる地下含水層が地表より1m以深、さらには1.5m以深にある地域への定植に適した長尺根を有する植物苗を成長させることのできる植物苗の短期育成用具および育成方法、定植用植物苗セット、並びに植苗方法を提供する。【解決手段】植物苗用の育成材料の脱落を防止する網状部材が底部開口部に取り付けられるとともに内部に前記育成材料が充填されている複数の短筒体と、該複数の短筒体を長手方向に積層連結固定して前記定植地の地下含水層に到達可能な長さとする連結固定手段とを有してなり、前記各短筒内の育成材料が前記積層連結された複数の短筒体の最上部の短筒体の上部開口部内側に固定する植物苗の根の下方への成長速度を増大させることを可能にする硬度に調整されてなる短期育成用具を用いる。【選択図】 図1
