论文部分内容阅读
为了满足冬季市场和适应旅游事业的需要,上海郊区积极发展蔬菜保护地栽培。目前已建成塑料大棚六百多亩、玻璃温室十余亩。上海地区冬季气温平均在3～5℃,夜间在零下1～3℃,遇到寒流时,还会下降到零下5～7℃。在这样的条件下,要使蕃茄、黄瓜等夏季蔬菜正常生长,就必须提高温度,并解决提高温度所需的能源问题。鉴于上海郊区有许多工厂,把大量的废热排入大气或河流中,白白地浪费掉。如果把这些废热加以利用,作为蔬菜温室所需的热能,将是很有意义的。在有关方面的支持下,上海市农业局组织了上海锅炉厂、机电设计院、沪光中学、
In order to meet the needs of the winter market and to adapt to the cause of tourism, suburban areas in Shanghai actively develop cultivation of vegetable reserves. Has now completed more than 600 acres of plastic greenhouses, more than 10 acres of glass greenhouses. The average winter temperature in Shanghai is 3 ~ 5 ℃, at night, minus 1 ~ 3 ℃, in the face of cold, it will drop to minus 5 ~ 7 ℃. Under such conditions, in order to make summer vegetables such as tomatoes and cucumbers grow normally, it is necessary to raise the temperature and solve the energy problem required for raising the temperature. In view of the many factories in the suburbs of Shanghai, large amounts of waste heat are discharged into the atmosphere or rivers and was wasted. If we take advantage of these waste heat, as a vegetable greenhouse heat required, it will be of great significance. With the support of relevant parties, Shanghai Municipal Bureau of Agriculture organized the Shanghai Boiler Works, Mechanical and Electrical Design Institute, Shanghai Light Middle School,