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本试验提供了花椰菜、莴笋等喜冷冻蔬菜育苗,不需要阳畦或改良阳畦培育。仅借用冬闲大棚,增设简易自控电热温床,掌握适温低限节能技术,在1月中旬播种,3月中旬定植。其苗龄比阳畦常规苗缩短65—80天,每亩成苗节支69元。试验证明菜花、莴笋苗期适温低限范围,地温在13-18℃;气温在8-25℃的环境下,能在短期内培育出适龄壮苗,增产幅度在15—50%之间。这项技术不仅解决了花椰菜,莴笋育苗冬季长时间占用育苗设备的问题,而且技术易掌握,在京郊试用,效果显著,深受菜农欢迎。
This experiment provides broccoli, lettuce and other hi frozen vegetables nursery, does not require cultivation or Yang Yang Yang improved. Only borrow winter and free greenhouses, additional simple electric hotbed, master the low temperature energy-saving technology, sown in mid-January, planting in mid-March. Its seedling shorter than conventional Yangguo shorten 65-80 days, 69 yuan per mu into Miao Festival. The experiment proved that cauliflower and lettuce had the lowest suitable temperature range at seedling stage, and the ground temperature was at 13-18 ℃. When the temperature was at 8-25 ℃, the seedlings of medium age were able to be cultivated in a short period of time with a yield increase of 15-50%. This technology not only solved the cauliflower, lettuce seedling winter occupation of nursery equipment for a long time, but also easy to grasp the technology, the trial in the suburbs, the effect is significant, welcomed by vegetable growers.