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近几年来,蔬菜保护地生产发展很快,特别是塑料大棚更为突出。呼市地区从1972年建立第一个大棚到今年为止,已建大棚800多亩,约占保护地面积的50％,如按城市人口计算,每万人拥有15亩(集宁约30亩,天津为10亩,青海西宁市约24亩)。随着国家工业化的发展,塑料大棚的应用将会更加普及。塑料大棚生产蔬菜的经济效益已越来越为人们所重视。从呼市地区来看,大棚韭菜可于3月下旬上市,比露地栽培早一个多月,黄瓜5月上、中旬上市,青椒6月初采收,也
In recent years, the development of vegetable production has developed rapidly, especially in plastic sheds more prominent. In Hohhot, since the establishment of the first greenhouses from 1972 to this year, more than 800 mu of greenhouses have been built, accounting for about 50% of the total area under protection. According to the urban population, 15,000 mu (10,000 mu) Tianjin, 10 acres, about 24 acres of Qinghai Xining City). With the development of national industrialization, the application of plastic shed will be more popular. The economic benefits of plastic greenhouse production of vegetables have been more and more people attach importance. From the Hohhot area, the greenhouse leek can be listed in late March, more than a month earlier than the open field cultivation, the cucumber in May on the mid-market, green peppers early harvest in June, also