结果表明，三个甜瓜品种均适于无土栽培。与土壤栽培方式相比，生育期缩短，果实营养物质的积累加快，甜度、Vc含量、甜味和鲜味氨基酸含量增加。果实发育前期葡萄糖、果糖等还原糖是主要糖，成熟果实中以蔗糖为主。蔗糖酶与蔗糖积累呈负相关，磷酸化酶与蔗糖积累呈正相关。 The results showed that all three melon cultivars were suitable for soilless culture. Compared with the soil cultivation method, the growth period shortened, the accumulation of nutrients in fruits accelerated, and the contents of sweetness, Vc, sweet and umami amino acids increased. Pre-fruiting glucose, fructose and other reducing sugars are the main sugar, sucrose-based mature fruit. Sucrose was negatively correlated with sucrose accumulation and phosphorylase was positively correlated with sucrose accumulation.