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大白菜栽培极为广泛,是呼市秋菜主要种类。近年来播种面积一直在1～1.4万亩,占蔬菜总播面积的20～25%,占冬贮菜的60～70%,年产量为0.5～0.6亿公斤,占蔬菜总产量的50%左右.近年来由于耕作制度、品种、生态条件的变化,大白菜病虫害已有上升的趋势,已成为大白菜生产的限制因素.一般减产20～30%,重则可达50～90%,严重地影响大白菜的产量.搞好大白菜生产,对于保证城乡人民冬贮菜供
Cabbage cultivation is extremely broad, is the main type of Hohhot autumn vegetables. In recent years, sowing area has been 1 to 1.4 million mu, accounting for 20-25% of total vegetable sown area, accounting for 60-70% of winter storage of vegetables, annual output of 0.5 to 0.6 billion kg, accounting for about 50% of total vegetable output In recent years, due to the change of tillage system, variety and ecological conditions, the diseases and insect pests of Chinese cabbage have been on the rise, which has become the limiting factor for the production of Chinese cabbage, with a general reduction of 20-30% and a weight of up to 50-90% Affect the yield of Chinese cabbage.Cleaning cabbage production, to ensure that urban and rural people winter storage for food