Cabbage nutritional value: cabbage is rich in vitamins, eat more cabbage, can play a good skin care and skin care effect. The fiber in cabbage can not only play the role of laxative and promote detoxification, but also promote the body's absorption of animal protein. Chinese medicine believes that cabbage is slightly cold and sweet, and has the function of nourishing the stomach and generating fluids, removing annoyance and quenching thirst, diuretic and laxative, and clearing heat and detoxification. Folk also often say: fish fire, meat phlegm, cabbage and tofu to keep safe.

Cabbage origin: the north of China, the introduction of the south, the north and south are cultivated. The nineteenth century was introduced to Japan, Europe and the United States. There are many types of cabbage, the northern cabbage has Shandong Jiaozhou cabbage, Beijing Qingbai, Tianjin green, northeast of the big short cabbage, Shanxi Yangcheng's big hairy side.

The meteorological conditions for the growth of cabbage: seedling: generally before and after the Autumn Festival, the average daily temperature of 20-25 ℃ sowing force is appropriate, the temperature is more than 27 ℃, the seedling growth is weak, vulnerable to disease. Sowing too drought can not come out of the seedling, waterlogged root system can not be under the root. Seedling sunshine is weak, rain hard, soil water content of 85% of the water holding capacity of the field is more appropriate. rosette period: the appropriate temperature is 18-22 ℃, adequate moisture, no cracks in the soil, cool sunny days, sunshine, easy to leaf and root growth. Continuous rain, weak sunshine, high humidity, storm with sudden sunny high temperature caused by disease. The period of the package: the appropriate temperature of 12-16 ℃, cool temperatures conducive to the package, especially the day and night temperature difference is large, nutrient accumulation. High temperature, hot, cold and hot, drought, wind is easy to rotten heart and cause disease, unfavorable package heart.

Harvest: the appropriate temperature of 4 a 8 ℃, sunny weather, in order to drying, in the event of a cold snap, freezing, frost, the temperature fell to -4 a -5 ℃ that is subject to frost damage.

"The winter does not cut vegetables, victimization of the blame". According to statistics, the city in the week after the winter, not frost damage to the climate guarantee rate of 80%, indicating that most years during this period of harvesting cabbage will not be victimized, but there are also 20% of the year victimized. That is, every year during this period of high and low temperatures, but this time the growth of cabbage is very fast, harvested early low yield, poor package. Harvesting late is susceptible to frost damage, timely harvesting high yield, good quality. When to cut the best vegetables, on the one hand, to consider the season, on the other hand, pay attention to listening to the weather station cooling and freezing weather forecasts.