The plant cultivation device is configured to make the plant roots grow from the culture soil tank 5 into the irrigation water below the tank and locally control the temperature of the culture soil tank 5, and thereby enables reduction in moisture stress on the cultured plants even when having a small amount of the culture soil and therefor reduction in energy loss due to heat dissipation, and enables temperature control at energy-saving cost.例文帳に追加

培土槽５からその下部の灌漑水中に植物の根の伸長させ、培土槽５を局所的に調温する構成としたことで、少量の培土でも栽培植物の水分ストレスは小さくでき、少量培土のため熱の散逸によるエネルギーロスが小さく、少エネルギーコストでの温度管理が可能となる。 - 特許庁