PROBLEM TO BE SOLVED: To provide a hydroponics method of leafy vegetables, by which leafy vegetables with high calcium content and with satisfactory plant height and weight at the time of harvesting can be stably obtained.SOLUTION: Provided is a hydroponics method of leafy vegetables characterized by cultivating, in the first half of the cultivation period, using a first hydroponic solution containing at least nitrogen, phosphoric acid, potassium, and in the second half of the cultivation period, using a second hydroponic solution containing at least nitrogen, phosphoric acid, potassium and having a lower potassium content and a higher calcium content compared with the first hydroponic solution, in the hydroponics method of leafy vegetables.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】カルシウム含量が高く、収穫時の草丈や重量も満足のいく葉物野菜を安定して得ることができる葉物野菜の水耕栽培方法を提供する。【解決手段】葉物野菜の水耕栽培方法において、栽培期間の前半で、窒素、リン酸、カリウムを少なくとも含有する第１水耕液を用い、栽培期間の後半で、窒素、リン酸、カリウムを少なくとも含有し、前記第１水耕液に比べて、カリウム含量が低く、かつ、カルシウム含量が高い第２水耕液を用いて栽培することを特徴とする葉物野菜の水耕栽培方法を提供する。【選択図】図１
