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塑料大棚栽培的黄瓜等果菜类一般在5月中旬以后上市,能否使果菜类在5月中旬以前上市,我们根据国外用燃油热风炉在大棚内加温的启示和我省有着丰富煤炭资源的特点,一九八一年我们与哈尔滨市暖风机厂合作,研制了 EH—1和 EH—2两种型号的热风炉,经81、82年试验燃煤热风炉表现结构合理、成本较低、实用性强,同时研究了使用技术,调查了应用效果,现已取得了较好的结果。
Plastic greenhouse cultivation of cucumbers and other fruits and vegetables generally listed in mid-May, whether the fruits and vegetables in the market by mid-May listing, we based on foreign fuel stove in the greenhouse warming enlightenment and our province is rich in coal resources Characteristics, in 1981 we and Harbin heater factory cooperation, developed EH-1 and EH-2 two types of stoves, after 81,82 years of test coal-fired stove performance and reasonable structure, low cost, Practicality, at the same time studied the use of technology, investigated the application effect, and now has achieved good results.