大同市自然条件的特点是十年九旱,昼夜温差大,日照充足,有利于西瓜糖分积累,农民已有一千多年栽培西瓜的历史。从三十年代开始用铺砂种瓜,但在品种上一直沿用当地大型瓜种。这种瓜成熟晚,糖分少,品质差,产量低,不抗病,难座果,用籽量大。 Datong’s natural conditions are characterized by nine dry ten years, large temperature difference between day and night, adequate sunshine, watermelon is conducive to the accumulation of sugar, peasants have more than a thousand years of cultivation history of watermelon. From the 1930s began to use sand to grow melons, but the species has been followed by the local large melon species. This melon late mature, less sugar, poor quality, low yield, no disease resistance, hard fruit, with large seeds.