What does the great cold mean?

The moral of the great cold solar terms is to remind people that winter is coming to an end.

The Great Cold is the last of the 24 solar terms. Fighting refers to ugliness; The solar meridian reaches 300; Celebrate on the calendar of 65438+1October 20-2 1 every year. Great cold, like slight cold, is also a solar term indicating the cold weather. Great cold refers to extremely cold weather.

According to China's long-term meteorological records, there is no slight cold in the great cold solar terms in the northern region; But for most parts of the south, the coldest is the great cold solar term. ?

The great cold comes at the end of the year, winter goes to spring, and after the great cold, a new cycle begins. In some parts of China, during the Great Cold to beginning of spring, there were many important folk customs, such as taking off old cloth to make bacon, offering sacrifices to stoves and ending sumptuous food. Tail luxury food is also called "making teeth" and "making luxury food". There is a folk custom of "eating tail teeth" after eating luxury food.

Agricultural activities in severe cold season

In the severe cold season, it is necessary to master the law of changes in the temperature of agricultural production, pay close attention to the forecast of meteorological departments at any time according to different years, different geographical locations and topographic conditions, and plant crops reasonably to avoid unnecessary losses.

Especially in the large-scale introduction of cash crops, it can not be ignored; Small-scale planting should also pay attention to the surrounding terrain and environment. For example, around large reservoirs, due to the temperature regulation of water, freezing damage is often light or not. Some cash crops and flowers that are easily frozen can be planted around the reservoir before the cold winter comes.

According to the weather changes, the temperature and humidity of greenhouse crops should be well controlled. Both ends of the greenhouse should be ventilated around noon, but they must be closed before 4 pm to maintain the temperature in the greenhouse.

Refer to the above? Baidu encyclopedia-great cold