凌海市地处辽西走廊。近年来,随着种植结构和栽培模式的不断调整,四层膜冷棚甜瓜的种植面积不断增大。四层膜冷棚甜瓜品质好、上市早(比常规栽培早上市两个月)、产量高(每亩比常规栽培增产500kg)、效益好(每亩增加收入6000元),具有广阔的发展前景。1品种选择冷棚甜瓜可选择高产 Linghai City is located in western Liaoning corridor. In recent years, with the continuous adjustment of the planting structure and cultivation mode, the planting area of ​​melon in the four-layer film shed has been continuously increasing. Four layers of film shed melon quality is good, early market (than the morning of two months of conventional cultivation), high yield (500 kg per acre than conventional cultivation), good efficiency (increase of 6,000 yuan per mu), has broad prospects for development . A variety of choice of shed melon can choose high yield