PROBLEM TO BE SOLVED: To provide a hydroponics method of leaf vegetables which is excellent in taste, and hard to discolor even if it is kept for a long period after harvesting.SOLUTION: This hydroponics method of the leaf vegetables includes cultivating seedlings after raising seedling by first flooded solution culture for 4-13 days, spray culture for 20-8 days, and second flooded solution culture for 1-3 days. In the spray culture, a nutrient solution brought into mist of a size of average 70-180 &mum is used. Each of the nutrient solutions of the first flooded solution culture, the spray culture, and the second flooded solution culture contains water soluble calcium salt, and a concentration of each of the nutrient solutions is each 0.7-1.3 mS/cm, 0.3-0.7 mS/cm, and 0.1-0.4 mS/cm, at an electrical conductivity excluding water soluble calcium salt.COPYRIGHT: (C)2010,JPO&INPIT【課題】 食味に優れ、しかも収穫後、長期保管しても変色し難い葉菜類の水耕栽培方法を提供する。【解決手段】 育苗後の苗を第1の湛液水耕で4~13日間、噴霧水耕で20~8日間、次いで第2の湛液水耕で1~3日間栽培する葉菜類の水耕栽培方法であって、噴霧水耕が平均70~180μmの大きさのミスト化した養液を用い、第1の湛液水耕、噴霧水耕および第2の湛液水耕の各養液には水溶性カルシウム塩を含有し、各養液の濃度が水溶性カルシウム塩を除いた電気伝導度で、それぞれ0.7~1.3mS/cm、0.3~0.7mS/cm、0.1~0.4mS/cmである葉菜類の水耕栽培方法。【選択図】 なし
