Twenty-four seasons, is the dry calendar that indicates the natural rhythmic changes and the establishment of the "December build" (season) of a particular season, it is initially to the Big Dipper handle pointing to determine. When the handle of the Big Dipper points to the southeast, it is the beginning of summer. The current "twenty-four solar terms" are divided by the "qi method", i.e., each solar term corresponds to a certain position reached by the Earth every 15° on the ecliptic, and when the sun reaches 45° of yellow meridian, it is the node of the beginning of summer.

"Doo points to the southeast, the dimension is the beginning of summer, everything grows up to this point, so the name of the beginning of summer also." "Rixia" means that the plants sown in the spring have grown upright by this time. Spring is born, summer grows, fall harvests, winter storage, summer is the best season for many crops to grow vigorously. Summer is the best season for many crops to flourish. Due to the vastness of our country, the north and south span, the natural rhythms of each place are not the same. At the beginning of summer, China only Fuzhou to the south of the South Ridge line south of the region is the real "green trees and shade summer long, building reflection into the pond" of the summer; and the northeast and northwest of the part of the region at this time has just entered the spring. If the modern climatology (average temperature) of the division of standards, the average daily temperature rose steadily to 22 ℃ or more for the beginning of summer.

2, summer folk proverbs

Farming season to the summer, check the patch to complete the seedling digging.

Grain and cotton crops are hard to loosen the weed, kill the grass and loosen the soil rooted under the root.

The first thing you need to do is to get your hands dirty.

The first thing you need to do is to get your hands on a new pair of shoes or boots, and then you'll be able to get your hands on a new pair of shoes or boots.

The first thing you need to do is to get your hands on a new car, and then you'll be able to get your hands on a new car, and then you'll be able to get your hands on a new car.

Wheat watering bloom irrigation water, prevention and control of rust and wheat aphids.

Apple and pear early fruit thinning, sparse appropriate fruit.

Timely prevention and control of jujube step, generally should not be over the summer.

The cow, donkey, mule and horse are well fed, strengthen the epidemic prevention and frequent inspection.

The first thing you need to do is to make sure that you have a good understanding of what you are doing and how you are doing it.

The small pig should be moved, the big pig is quiet, and the sheep is full of stars.

The water is still carp and catfish, and the fish, turtles and shrimp are fed scientifically.