我市蔬菜栽培利用电加温取暖,是从七十年代初进行大棚黄瓜栽培时开始的。当时用的是高功率电炉丝,对温室或大棚做临时补充加温。使用电炉或电炉丝加温虽然使气温得到维持或提高,可是对地温的影响却不大,所以有时秧苗仍然表现“褪绿”、“沤根”,不能顺利生长。看来,早春保护地蔬菜生产,提高气温不如提高土温似乎更重“农用电热加温线”与“控温仪”,是 Vegetable cultivation in our city using electric heating heating, cucumber cultivation from the beginning of the seventies began. At that time is the use of high-power electric furnace wire, greenhouses or greenhouses to do temporary supplement heating. The use of electric furnace or electric wire heating Although the temperature is maintained or increased, but the impact on the ground temperature is not large, so sometimes the performance of the seedlings are still “green”, “Zao root” can not be successfully grown. It seems that in early spring vegetable production in protected areas to improve the temperature seems to be more important to improve the soil temperature “agricultural electric heating line” and “temperature controller” is