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为使矮牵牛在早春开花,我们在品种选择、育苗、栽培管理等方面进行了一系列尝试,取得了初步成果。实验开始于1999年12月13日,我们在温室中育苗。从2000年3月8日第一朵花开放到3月18日,陆续开放的矮牵牛约占总数的85％。3月20日将其全部移栽到济宁市内露天绿地,收到较好的绿化效果。一、播种温室的环境温室长45米,宽3米,前沿高2米(玻璃立面),后墙高4.5米(砖结构),东西两墙亦是砖结构,上盖玻璃钢瓦,温室底面低于地面1.3米,保温效果
In order to make petunia flowering in early spring, we made a series of attempts in variety selection, seedling raising and cultivation management, and achieved initial results. The experiment started on December 13, 1999, and we nursery in a greenhouse. From March 8, 2000 the first flower open to March 18, one after another petunia open about 85% of the total. March 20 will be transplanted to all its open-air green space in Jining City, received a better greening effect. First, the sowing greenhouse environment The greenhouse is 45 meters long, 3 meters wide, frontier 2 meters high (glass facade), the rear wall 4.5 meters high (brick structure), east and west walls are also brick structure, cover glass steel tile, greenhouse bottom 1.3 meters below the ground, thermal insulation effect