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1993年,我县从淮北地区引进日光温室蔬菜生产技术。1996年,全县获得每亩产菜超10000kg,产值超万元的效果。 一、扬长避短改进温室构型准北地区温室多半采用琴弦式或拱圆式构型,我们从防风、采光等方面考虑,扬长避短,将其构型改为微拱式、码竹结构,立柱为水泥预制件,每亩造价万元左右。其构造为:温室内跨7.3m,尖高2.8m,高跨比1:2.6,长50-70m,短于40m效果不佳。前立窗高70cm,后墙高180cm,厚50cm,中空25cm,填土至顶部,后立柱距后墙内壁80cm。用直径9-10cm的毛竹作桁条,小毛竹作椽子,用压膜线固定薄膜,后屋面用芦帘、旧薄膜、草泥等盖成,厚30cm。这种构型抗风性强,1995年遇10级强台风,琴弦式薄膜破损率73％,微拱式基本无损。 二、调整方位发挥地区优势江淮地区深冬晨温多为0-1℃。日出相对较早,将温室方位定为正子午线偏东5°。室内植株可提前1个小时见到阳
In 1993, our county introduced the greenhouse vegetable production technology from Huaibei area. In 1996, the county received over 10000kg per mu of vegetable production, the output value of ultra-million effect. First, to avoid weaknesses to improve the greenhouse configuration Most of North China greenhouse greenhouse or arch-round configuration, we from the wind, lighting and other aspects of considerations, to avoid weaknesses, the configuration changed to micro-arch, bamboo code structure, column Cement prefabricated parts cost about million yuan per mu. Its structure is as follows: 7.3m across the greenhouse, apex height of 2.8m, high-span ratio of 1: 2.6, length 50-70m, shorter than 40m ineffective. Front window 70cm high, the back wall height 180cm, thickness 50cm, hollow 25cm, filling to the top, after the column from the wall of the back wall 80cm. Using bamboo with a diameter of 9-10cm as a stringer and a small bamboo as a rafter, the film is fixed with a film line, and the rear roof is covered with a shade curtain, an old film, a grass mud and the like, with a thickness of 30cm. This configuration is strong wind resistance, encountered 10 typhoons in 1995, string-type film damage rate of 73%, micro-arch basically no damage. Second, adjust the position to play a regional advantage Jianghuai area mostly winter morning temperature 0-1 ℃. The sunrise is relatively early, setting the green house azimuth 5 ° east of the meridian. Indoor plants can see the sun 1 hour in advance