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河北省清苑县南王庄村是河北省有名的大棚西瓜种植专业村,近年来,在不断探索改进中,摸索出一套在大棚中铺地膜、扣2米和3米的拱棚,实现西瓜无公害生产技术。此项技术优点是:①西瓜生长期间,不用除草压蔓,病虫害发生少;②提温保墒,提早西瓜上市时间,一般5月中旬即可采收西瓜;③?
Qingyuan County, Hebei Province, Nan Wang Zhuang Village is a famous greenhouse in Hebei Province watermelon planting village, in recent years, continuous exploration and improvement, worked out a set of plastic film in the shed, buckle 2 meters and 3 meters of the arch shed to achieve watermelon Pollution production technology. The technical advantages are: ① during the growth of watermelon, do not weeding pressure vine, pests and diseases occur less; ② warming soil moisture, early watermelon time to market, usually in mid-May to harvest watermelon; ③?