What happened to the weather after the rain?

1. With the arrival of the rain solar term, snowflakes are falling in succession, and the weather of cold air soaking bones gradually disappears, while the days of spring breeze, melting ice and snow, moist air, mild sunshine and rustling drizzle are coming to people. Every February 18 or so, the sun reaches 330 degrees of the yellow meridian, which is the "rain" solar term. Rain means two things: first, the weather gets warmer and the precipitation gradually increases; Second, in the form of precipitation, there is less snow and more rain.

2. After the "rain", the temperature in most parts of China rose to above 0℃, the average daily temperature in Huanghuai Plain reached about 3℃, the average temperature in Jiangnan was about 5℃, the temperature in South China was above 10℃, and the average temperature in North China was still below 0℃. Before and after rainfall, rape and winter wheat generally turn green and grow, which requires high water content. "Spring rain is as expensive as oil", so proper precipitation is particularly important for crop growth. At this time, the precipitation in North China, Northwest China and Huanghuai areas is generally less, which often cannot meet the needs of agricultural production. If there is little rain in early spring, the best economic benefit can be obtained by timely spring irrigation before and after the rain. In the area south of Huaihe River, it is mainly to strengthen intertillage and hoeing, and at the same time, do a good job in clearing ditches and draining water in the field to prevent excessive spring rain from causing wet damage and rotten roots. As the saying goes, "Water the flowers with wheat, water the flowers with vegetables", and the coated rape should be topdressing with moss fertilizer in time to compete for more pods. South China's double-cropping early rice seedling cultivation has begun, so we should pay attention to "cold tail and warm head", and strive to sow all the seedlings at once.