What are the weather characteristics of slight cold in 2022?

Slight cold is one of the twenty-four traditional solar terms in China, which, like slight summer heat, severe summer heat and severe cold, are all solar terms indicating climate change. The slight cold solar term in 2022 is 65438+ 17: 00, 13: 54 in the Gregorian calendar in 2022, which falls on the third day of December of the lunar calendar and the fifth day of the 1898.

Weather characteristics of slight cold

In most cases, slight cold is the coldest time of the year. The weather characteristics of slight cold are: it gets cold, but it is not cold yet. In the slight cold season, the direct point of the sun is still in the southern hemisphere, and the heat in the northern hemisphere is still in a state of loss. The heat absorbed during the day is still less than the heat released at night, so the temperature in the northern hemisphere continues to decrease. The climate in south and north of China is quite different. According to China's long-term meteorological records, the slight cold solar terms in the northern region are colder than the severe cold solar terms; But for most parts of the south, the big cold solar terms are colder than the small ones. The specific weather will also be affected by local conditions.

How to manage mild cold vegetables

Slight cold belongs to winter, and vegetables should be well maintained at this time. Sow in time and manage scientifically. Watermelons, zucchini and cucumbers in small and medium-sized greenhouses should be raised in nutrient bowls or squares in winter greenhouses or sunshine beds before and after slight cold. For cucumber with weak growth, overwintering crops such as tomatoes and hot (sweet) peppers should be combined with watering and topdressing. Disease control. Due to rainy and foggy weather and high humidity in the shed, it is easy to induce gray mold, leaf mold, epidemic disease, downy mildew and powdery mildew of crops. Smoke agent or dust agent should be used in prevention and control, and pesticides should be used alternately to effectively improve the prevention and control effect. Only by maintaining vegetables according to the changes of seasons and climate can we increase production healthily.

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