论文部分内容阅读
近年来，一些地方一味追求高新技术，盲目引进现代化温室，营运状况欠佳，普遍存在“大、高。差”的问题。一是投资大。一座现代化玻璃温室和现代化塑料温室的投资费用，分别是国产塑料大棚的30－50倍，是永久高效节能日光温室的10一匕倍。二是营运费用高。每667平方米现代化温
In recent years, blind pursuit of high technology in some places, blind introduction of modern greenhouses, poor operating conditions, and widespread “big, high and poor” problems. First, large investment. A modern glass greenhouse and modern plastic greenhouse investment costs, respectively, 30-50 times the domestic plastic greenhouse, is a permanent energy efficient solar greenhouse 10-dagger. Second, high operating costs. Every 667 square meters modern temperature