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甘薯(地瓜)蔓头越冬育苗,对加快良种繁殖,培养无病瓜种等有很大作用。但遇到持续寒流的风雪天气,无法晒床增温是其缺点。去年我们用一个简单办法克服了这个缺点。方法是在瓜蔓越冬的温床内挂上一只盛有开水的铁桶,桶口用塑料布盖严,这样床内气温就会很快回升。据我社宅科大队去年试验,一个高2尺、长18尺、宽4.5尺的温床,盖二层塑料薄膜、三层草
Sweet potato (sweet potato) Crab head overwintering nursery, to speed up the breeding of seeds, cultivated disease-free melon have a great role. However, the continued cold weather snowy weather, can not be drying bed temperature is the disadvantage. Last year we solved this shortcoming in a simple way. The method is hanging in the winter melon melon covered with a hot iron bucket, barrel mouth covered with plastic sheeting, so bed temperature will quickly rise. According to the test conducted last year by our Naoke Branch, a hotbed of 2 feet in height, 18 feet in length and 4.5 feet in width, covered with a plastic film of two layers and a layer of grass