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地瓜电热育苗是利用电热线通电产生的热量进行育苗。这种苗床床温均匀,出苗效果好,可以简化苗床结构,便于管理,节省燃料,降低生产成本。它的主要优点是:1.升温快、调温方便:一般火炕和温床育苗需提前5～7天烧炕和铺填酿热物,升温较慢,一旦温度过高又难以控制,掌握不好易造成烂薯。电热苗床通电24小时后床温即可达到32～35℃。特别是装有自动控温装置的苗床,可以根据育苗不同阶段对温度的要求自行调节。据省农业科学院塑料大棚内电热育苗试验,平均10厘米深床温(4月18～27日)比薄膜温床高9.34℃,比薄膜冷床高14.54℃。因此,用电
Sweet potato electric hot nursery is the use of electric heat generated by hotline nursery. This seedbed bed temperature uniformity, good germination, seedbed structure can be simplified, easy to manage, save fuel and reduce production costs. Its main advantages are: 1. Rapid warming, easy to adjust temperature: General nursery and hotbed nursery 5 to 7 days in advance to burn kang and bedding stuffing stuff, warming slowly, once the temperature is too high and difficult to control, not good grasp Easy to cause bad potato. Electric hotbed 24 hours after the bed temperature can reach 32 ~ 35 ℃. In particular, equipped with automatic temperature control device seedbed, seedlings can be adjusted according to different stages of the temperature requirements. According to the Provincial Academy of Agricultural Sciences Plastic greenhouse incubation test, an average of 10 cm deep bed temperature (April 18 to 27) higher than the film hotbed 9.34 ℃, 14.54 ℃ higher than the film cold bed. Therefore, electricity