PROBLEM TO BE SOLVED: To provide an elevated cultivation device capable of further promoting growth of a plant.SOLUTION: An elevated cultivation device for cultivating a plant on a medium in an elevated place comprises a medium holding part for holding a medium a liquid tank for storing a liquid to be supplied to a medium a compression dissolution mechanism for compressing and dissolving a gas including oxygen into the liquid stored in the liquid tank and a discharge tube for discharging the liquid to which the gas is compressed and dissolved by the compression dissolution mechanism to the medium, in which the compression dissolution mechanism comprises: a pipe for liquid extraction for extracting the liquid from the liquid tank a pump for sucking the liquid in the liquid tank to the pipe for liquid extraction a gas taking pipe for taking a gas including oxygen to the liquid in the pipe for liquid extraction and a compression dissolution tank which is connected to the pipe for liquid extraction, and which compresses the liquid to which the gas from the gas taking pipe is mixed, for compressing and dissolving the gas.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】植物の成長をより促進させることができる高設栽培装置を提供すること。【解決手段】植物を培地で高設栽培するための高設栽培装置は、培地を保持する培地保持部と、培地へ供給する液体を貯留する液体タンクと、液体タンクに貯留された液体に酸素を含む気体を加圧溶解する加圧溶解機構と、加圧溶解機構によって気体が加圧溶解された液体を培地に吐水する吐水チューブとを備え、加圧溶解機構は、液体タンクから液体を抽出する液体抽出用配管と、液体抽出用配管へ液体タンクの液体を吸い出すためのポンプと、液体抽出用配管の液体に酸素を含む気体を取り込む気体取込配管と、液体抽出用配管に接続されるとともに、気体取込配管からの気体が混合された液体を加圧して気体を加圧溶解する加圧溶解槽とを備える。【選択図】図1
