改良型塑料大棚的设计及温度初探

改良型塑料大棚在普通型塑料大棚的基础上进行了一些技术参数改造，并增加了不透明覆盖材料。本试验对改良型塑料大棚和普通型塑料大棚的温度、利用率、建造成本以及收益进行了比较，结果表明：改良型塑料大棚在1月份的温度明显高于普通型塑料大棚，保温性和升温性都明显优于普通型塑料大棚，春季生产可以比普通型塑料大棚提早一个月，而秋冬季延迟收获一个月，同时冬季还可以进行耐寒类蔬菜的生产，收益明显高于普通型塑料大棚。

Design of the Improve Plastic Shed and Preliminary Study on the Temperature

With the purpose of increasing horticultural greenhouse types and making up their deficiencies, on the basis of the common plastic shed, the improve plastic shed was constructed, and opacity materials were added, the temperature in the improve plastic shed was contrasted, utilizing rate, construction cost and income of the improve plastic and the common plastic shed were study, the results showed that the temperature in the improve plastic shed was significantly higher than the common plastic shed in January, performances of keeping warm and warm-up were superior to the common plastic shed, vegetables was produced one month earlier in spring and one month later in autumn and winter, hardy vegetables could be also produced in winter, the income of the improve plastic shed was significantly higher than the common plastic shed.