That solar term is the busiest time for farmers.

On June 5 or 6 of the Gregorian calendar every year, when the sun reaches 75 degrees of the yellow meridian, it is an awn. In North China, there is a saying that "the wheat is covered first in April and then in May", which is caused by the lunar calendar algorithm. According to the lunar calendar, a year is actually 344-345 days.

This is less than the number of days to serve around the obstacle 10- 1 1 day, so it needs to jump every three years (sometimes two years) to make up for the shortage of days. Between months, solar terms are either advanced or postponed, so sometimes in April and sometimes in May.

Farmers in China know very well that crops should be planted early, because spring begins in early April and the solar terms are advanced. They should be planted before the crops are planted in May and after the solar term.

Climatic characteristics of Miscanthus;

There is abundant rainfall, and the temperature rises obviously in the awning season. Common weather disasters include tornadoes, hail, strong winds, heavy rains and droughts.

It is rainy along the river in the tent season, and the Huanghuai Plain is about to enter the rainy season. The southeast monsoon rain belt in South China is stable, and it is the season with the most precipitation in a year. The middle and lower reaches of the Yangtze River have entered the rainy season one after another, with more rainy days, more rainfall, less sunshine and sometimes lower temperatures.