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电热温床是利用地下埋设的温床线(一种绝缘的电热丝),通电后产生的热量提高床土温度,加盖薄膜保持床内的温、湿度,创造植物发芽、扦插生根和促成栽培等理想的环境条件。电热温床尤其适宜在北方冬季室内育苗使用。如扦插月季,成活率可达90％以上,扦插生根快,一般35—45天就能发根成苗。电热温床的设备包括地下埋设的直径2毫米的温床线、一个感温器和一个DR5112型继电器,也可用其他继电器代替。床面备有透明薄膜、涂铝遮光薄膜和支撑用塑料细管。温床线按图示铺开。如组装长11米,宽2米的地热
Electric hotbed is the use of buried underground hotbed (an insulated electric wire), heat generated after energization to improve bed temperature, stamped film to keep the bed temperature and humidity, to create plant germination, cutting rooting and to promote cultivation and other ideals Environmental conditions. Electric hotbed is especially suitable for winter indoor nursery in the north. Such as cutting rose, the survival rate of up to 90% or more, cutting rooting fast, usually 35-45 days can be rooted seedlings. Equipment for the electric hotbed includes a 2 mm diameter hotbed buried underground, a thermal sensor and a DR5112-type relay, but other relays may be used instead. The bed is equipped with a transparent film, coated aluminum shading film and support with plastic thin tube. Hotbed line according to the icon shop. Such as the assembly of 11 meters long and 2 meters wide geothermal