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北镇县大棚蔬菜研究会是农民自发组成的科研组织。去年秋后,他们筹集资金3000元,建起了面积为300平方米的塑料温室。棚内安装了两组电热线和两台自动控温仪,并在温室内砌两道火墙,用以增温。今年1月下旬播种了芹菜、西红柿等蔬菜。经过一个多月的精心管理,各种菜苗都移植到架床上。据初步测算,300平方米的大棚温室可生产200亩地所需的菜苗。两个月的苗
North Town Greenhouse Vegetable Research Association is a spontaneous research organization composed of farmers. After the autumn of last year, they raised 3,000 yuan and built an area of 300 square meters of plastic greenhouses. Shed installed two sets of hotline and two automatic temperature controller, and in the greenhouse built two fire walls, for warming. Celery, tomatoes and other vegetables are sown in late January of this year. After more than a month of careful management, all kinds of vegetable seedlings are transplanted to the frame bed. According to preliminary estimates, 300 square meters of greenhouses can produce 200 acres of greenhouse seedlings required. Two months of seedlings