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西瓜是深受人们喜爱的夏令果品,近几年我省栽培面积迅速扩大,1985年已达近百万亩.但我省西瓜主要是春播夏收,集中于3月中旬至4月中旬定植或直播,6月中旬至7月中旬上市.6月上旬上市的西瓜绝大部分只有6～7成熟.5月上中旬上市的西瓜多从海南岛购进,一般7～8成熟,含糖量偏低,且价格较贵.鉴于这种情况,我们于1985年早春在泰安市郭区山阳北村进行大棚西瓜栽培试验.试验证明,在当地条件下利用塑料大棚栽培西瓜,采收期可提前到5月下旬,亩产量可达6,000～7,500斤,纯收益可相当于一般露地栽培的两倍. 一、材料和方法泰安市郭区山阳北村属山区半湿润季风区,一
Watermelon is popular summer fruit, people in our province in recent years, the rapid expansion of cultivation area, has reached nearly one million mu in 1985. However, the province’s watermelon is mainly spring sowing, concentrated in mid-March to mid-April planting or live , From mid June to mid July listing.Most of the watermelons listed in early June only 6 to 7 mature.Middle watermelon listed in mid-May and more from Hainan Island purchased, generally 7 to 8 mature, low sugar content , And the price is more expensive in view of this situation, we were in early spring in Tai’an City, Sanyo Beiyang Village, Saikang watermelon cultivation test.Experiment proved that the use of plastic greenhouse cultivation of watermelons under local conditions, the harvest can be advanced to 5 In late month, the yield per mu can reach 6,000 ~ 7,500 kg, and the net income can be equivalent to twice as much as that of the general open-field cultivation.Materials and Methods The northern part of Sanyang Beiyue Village, Guo’an District, Tai’an belongs to the semi-humid monsoon area