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孝义县从1980年开始,在西瓜上采用地膜覆盖栽培新技术,经过四年实践,表现了早熟、增产、优质、高效等优点。同时,错开播期,分期上市,延长供应时间,调节了市场余缺。1983年覆盖栽培面积达510亩,平均亩产5,000多斤,比露地西瓜增产40%,亩产值500元,为露地西瓜的2.5倍.扣除塑膜等投资外,纯收入220元.主要栽培技术如下。一、选茬,整地,施足基肥“芝麻瓜,怕重茬”,“瓜茬瓜,不结瓜”.西瓜的前茬以谷子,玉米和高粱等为佳,次之为棉花和甘薯等。西瓜根系强大,入土较深,为了促进根群发育,需要深耕整地。整地质量是西瓜覆膜栽培成败的重要环节,因此瓜田的整地要结合覆盖方式进行。头年秋收后先浅耕灭茬,再深耕,深度为7—8寸,并精细耙耱。早春解冻后,及时浅耕3—4寸,耙耱
Since 1980, Xiaoyi County has adopted the new technology of plastic film mulching on watermelons. After four years of practice, it has shown the advantages of early maturity, high yield, high quality and high efficiency. At the same time, stagger the broadcast period, stage listing, to extend the supply time, adjusting the market surplus. 1983 covers an area of 510 acres of cultivation, the average yield of 5,000 kilos, more than open watermelon yield 40%, 500 acres of output value for the open watermelon 2.5 times, net plastic film investment, the net income of 220. Main cultivation techniques as follows. First, the election cropping, soil preparation, Shizujifei “sesame melon, fear of stubble”, “melon crop melon, not fruiting.” Watermelon stubble to millet, corn and sorghum is better, followed by cotton and sweet potato. Roots of watermelon strong, deeply buried, in order to promote root development, requires deep plowing site preparation. The quality of ground preparation is an important part of the success of watermelon filming cultivation, so melon field preparation should be combined with coverage. After the first harvest in the first round of shallow tillage, and then deep plowing, depth of 7-8 inches, and fine rake 耱. After thawing in early spring, timely 3-4-inch shallow rake