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河北省新乐市地处河北省西南部,耕地面积42万亩,西甜瓜种植面积常年6万亩。1大拱棚建造1.1大拱棚西瓜主要有两种种植形式一是多层覆盖早上市型。5层膜覆盖:2层大棚膜、1层3m中棚膜、1层2m中棚膜、1层地膜。定植时间较早,多为2月底3月初,第一茬西瓜4月底5月初上市,第二茬6月中旬上市。二是高产高效型。仅有1层大棚膜、1层2m中棚膜、1层普通地膜。定植时间多为3月上中旬,第一茬西瓜5月中旬上市,第二茬6月下旬
Xinle City, Hebei Province, is located in the southwestern province of Hebei Province, 420000 acres of arable land, melon planting area perennial 60000 acres. 1 large arch shed construction 1.1 big shed watermelon There are two main forms of planting First, multi-storey morning market. 5 layers of film cover: 2 layers of greenhouse film, 1 layer 3m in the film, 1 layer 2m in the film, a film. Early planting time, mostly at the end of February early March, the first crop of watermelon at the end of April early May listing, the second crop in mid-June market. Second, high-yield and high efficiency. Only 1 layer of greenhouse film, 1 layer 2m in the greenhouse film, a layer of ordinary film. Most of the planting time in mid-March, the first crop of watermelon listed in mid-May, the second crop in late June