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一、地温种子出苗期间适宜的地温为24—25℃,秧苗生长发育阶段最低地温不应低于15℃,由于早春保护地地温经常达不到适温下限,往往延迟出苗,苗不整齐,严重时甚至烂种毁种。为了提高地温,生产中采用酿热温床、架床等方式育苗。近年来,我省推广的电热线温床育苗(具体铺设方法见《新农业》1986
First, the geothermal seed suitable temperature during the emergence of 24-25 ℃, seedling growth and development stage minimum ground temperature should not be less than 15 ℃, due to the early spring ground temperature often reach the lower temperature limit, are often delayed emergence, seedling irregular, serious Even rotten species destroyed. In order to improve the ground temperature, the production of hot stuffed hotbed, bed and other ways nursery. In recent years, our province to promote electric hotbed nursery hotbed (see the specific laying method, “New Agriculture” 1986