Why is the "summer" of "long summer" not summer, but "big"?

Chang Xia said that he would bid farewell to spring and welcome summer. When the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season, people are used to taking long summer as an important solar term.

Long summer is a solar term established at the end of the Warring States Period (239 BC). It marks the change of seasons, the day when summer begins all the year round, and also marks the official start of the season in Xia Meng.

The bucket refers to the southeast, and the dimension is long in summer. Everything has grown to this day, hence the name Long Summer. The word "summer" in "long summer" means "big", which means that the plants sown in spring have grown upright.

China's earliest calendar, "Twenty-four solar terms", which combined astronomy, meteorology and phenology to guide agricultural activities, said: "Long summer, April Festival. Make a word to understand spring.

Summer, holidays. At this time, everything is fake and big. Interpretation: Long summer is the solar term in April of the lunar calendar. For the explanation of the word "Li" in Long Xia, please refer to the explanation of the word "Li" in beginning of spring. Summer, elegance. Everything grows in summer.

The ancients believed that the three months of long summer (Xia Meng, midsummer and the last month of summer) were busy farming seasons, so this season was also called "Three Summers". At this time, the vegetation is lush and vigorous, and it is sickly in midsummer, often with fatigue and weakness, eating less and slightly hot, and sometimes the summer heat hurts.

Five days after the long summer, "Earthworms were born". Earthworms' songs are also very famous. They are sung in the ground, feeling yin and bending, and seeing them in the sun. Five days later, "Wang Guasheng". This kind of melon is also called "sweet potato". "Melons are like hail, ripe and red, and crows like them, so they are called' old crow melons'. This is not a cucumber.

This situation is often caused by high labor intensity, high temperature and insufficient rest. Therefore, we should pay attention to adjusting diet, reasonably arranging one room for agricultural production, supplementing water in time, ensuring sleep, adapting to the requirements of "long-term care" in summer and protecting physical and mental health.