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西瓜三膜覆盖栽培,即在双膜覆盖的基础上,加盖一层用2米宽塑料膜拱的小棚。 优点。①播种早。西瓜三膜覆盖栽培于2月卜旬播种,比双膜覆盖栽培西瓜播种提前一个月。②密度大。采用较严格的整枝,西瓜三膜覆盖栽培每亩2000株,比双覆盖栽培多200—300株。③提前上市。三膜覆盖栽培的西瓜于6月初开始摘瓜上市,比双覆盖栽培的西瓜上市时间早25天左右。④产量高。三膜覆盖栽培亩产3400公斤,比双覆盖栽培增300公斤。⑤效益好。三膜覆盖栽培亩产值4100元,
Watermelon three-film cultivation, that is, on the basis of double-film coverage, stamped with a 2-meter wide plastic film arch shed. advantage. ① sowing early. Watermelon three-film mulch cultivation planted in February Bu, than double-membrane cultivation of watermelon sowing one month in advance. ② density. Strict use of pruning, watermelon three-film cultivation of 2,000 acres per mu, more than double-covered cultivation of 200-300 strains. ③ early listing. Three-film-covered cultivated watermelon began to pick melons in early June, about 25 days earlier than the market price of double-covered cultivated watermelons. ④ high yield. Three-film mulberry cultivation 3400 kilograms, 300 kilograms more than double-covered cultivation. ⑤ good benefits. Three-film mulching cultivation of 4100 yuan per mu,