Grain Rain, the last spring, what does Grain Rain mean?

Grain Rain (one of the 24 solar terms in China)

It is the sixth of the 24 solar terms. From April 19 to April 2 1 every year, Grain Rain is regarded as the time when the sun reaches 30 degrees of the yellow meridian, which comes from the old saying that "rain gives birth to hundreds of valleys". At the same time, it is also the best time for sowing, transplanting and ordering beans. According to meteorologists, Grain Rain is the last solar term in spring, and the arrival of Grain Rain solar term means that the cold wave weather is basically over and the temperature rises faster, which is very beneficial to the growth of cereal crops.

Solar agriculture

Grain Rain is the last solar term in spring. At this time, just after planting seedlings and planting new crops in the field, rain is most needed, so there is a saying that "spring rain is as expensive as oil". At this time, the eastern part of most parts of South China is abundant with rainfall of about 30 to 50 mm in late April of the year. The first heavy rain usually occurs during this period, which is beneficial to rice planting and the growth of corn and cotton at seedling stage. However, most of the rainfall in other parts of South China is less than 30 mm, so irrigation measures should be taken to alleviate the impact of drought. The mountainous areas in the northwest plateau are still in the dry season, and the precipitation is generally only 5 to 20 mm. The rainfall around Grain Rain in South China often "sneaks into the night with the wind, and moistens things silently" because the frequency of "late rain" is the highest in April and May. "It often rains at night and the river sill is clear", which is very suitable for crop growth and harvest.

In Grain Rain, high temperature and frequent rainy weather will lead to the occurrence and prevalence of wheat diseases and insect pests. The vast rural areas should do a good job in the prevention and control of wheat diseases and insect pests according to the weather changes.