Twenty four solar terms: heavy snow comes and cold winter begins

Heavy snow is the 21st of the 24 solar terms and the third in winter. The delivery time is December 6-8 of the Gregorian calendar every year. The heavy snow solar term is the beginning of the Ganzhi calendar month, marking the official beginning of the midsummer season.

The Chinese ancients divided the heavy snow into three periods: first, the babbler does not sing; Second, wait for the tiger to hand over; Three waiting litchi sticks out.

When there is heavy snow and the weather is getting colder, winter irrigation can form a good soil water environment, adjust the soil nutrients in the plough layer and improve the heat capacity of the soil.

In addition, snow water contains five times more nitrogen compounds than rain, which can not only fertilize the field, but also freeze to death the overwintering pests on the surface layer.

During the heavy snow season, except for the winter free areas in South China and southern Yunnan, China's vast land has been covered with winter clothes. The average temperature in Northeast and Northwest China has reached below - 10 ℃, the temperature in the Yellow River Basin and North China has also stabilized below 0 ℃, and the growth of winter wheat has stopped. But during this period, farming activities still can not be relaxed.

In addition, the Agricultural manipulator should also pay attention to the cleaning and maintenance of agricultural machinery and equipment, and conduct safety inspection in time. Important parts shall be prevented from rusting, the oil tank shall be inspected, and the belt shall be removed in time and stored.

The weather is getting colder. Farmers do seasonal farming and machine hands. Friends should also repair the machines in time for the coming year.