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近两年来,武汉市洪山区蔬菜生产上的小棚覆盖面积有了较大的增加,1977年有60.6亩,1979年增加到588.2亩,而前几年推广的大棚覆盖面积则有所减少。所谓小棚覆盖,即是用竹弓作支架,一幅宽2米的薄膜覆盖,棚高1.5米左右。实践证明,无论春季或秋季采用小棚覆盖,可以获得大棚覆盖的同样效果,但却比较简易而经济,在当前蔬菜生产上具有更大的推广实用价值。
In the recent two years, the coverage of small sheds on vegetable production in Hongshan District in Wuhan has greatly increased, from 60.6 mu in 1977 to 588.2 mu in 1979, while the coverage of greenhouses promoted in previous years has been somewhat reduced. The so-called shed coverage, that is, bamboo bow for the stent, a 2 m wide film covering shed height of 1.5 meters. Practice has proved that regardless of the spring or autumn covered with a shed, greenhouses can get the same coverage, but more simple and economical, the current vegetable production has a greater promotion of practical value.