An idiom in China, Rulixu zhào fēng nián, is pinyin for Rulixu zhào fēng nián, which means that timely winter snow indicates that the coming year will be a bumper harvest year. This is a harbinger of a bumper crop in the coming year.

Source: Qu Bo's "Bridge Dragon Label" XIX: "As the saying goes,' snow will have a good harvest', and wheat will be harvested next year."

Related scientific explanation: Heavy snow can increase soil moisture and freeze pests to death.

Usage: As an object and an attribute.

Extended data:

Reasons for the snow and harvest:

Snow contains a lot of nitrides. It is observed that if 1 liter of rain can contain 1.5 mg of nitride, then 1 liter of snow can contain 7.5 mg of nitride. When the snow melts, these nitrides are brought to the soil by snowmelt water and become the best fertilizer.

2. Because the amount of air contained in snow changes greatly, the thermal conductivity of snow also changes greatly. Generally, the newly fallen snow has large pores and the best heat preservation effect.

However, winter snow is harmful to the main crops in southern China. For southern China, the heavy snow in winter is simply a disaster; Wheat and other crops that benefit more from winter snowfall are planted less in the south. Therefore, as an agricultural proverb, Xue Ruizhao's bumper year generally refers to the northern region.

Baidu Encyclopedia-Xue Ruizhao Fengnian