When is the solstice in the summer of 2023?

The summer solstice is the 10 of the 24 solar terms. Fighting means noon; The yellow meridian of the sun is 90 degrees; The date is different every year, and it is celebrated on June 2 1~22 in Gregorian calendar. But the summer solstice in 2023 is June 2 1. On the day of summer solstice, the position where the sun shines directly on the ground reaches the northernmost part of the year, almost directly on the tropic of cancer. At this time, the daylight hours in all parts of the northern hemisphere reach the longest in the whole year. For the Tropic of Cancer and its northern region, the summer solstice is also the highest day at noon in a year.

The solstice in summer is the turning point of the sun's northward movement. After the summer solstice, the direct point of the sun began to move south from the Tropic of Cancer, and the days in the northern hemisphere began to shorten gradually. For China, which is located in the north of the Tropic of Cancer, after the summer solstice, the height of the noon sun begins to decrease day by day; For China, which is located in the south of the Tropic of Cancer, after the summer solstice, the height of the sun returned to the south at noon, and it began to decrease day by day after the sun shone again.

Agricultural activities in summer solstice

From summer to around, early rice heading and flowering in the south of Huaihe River, field water management should be fully water heading, wet irrigation, dry and wet, which not only meets the water demand of rice fruiting, but also can ventilate and nourish roots, ensure maturity and improve grain weight. As the saying goes, "Summer broadcast is not allowed for noon", we should pay close attention to the completion of summer broadcast, strengthen the management of broadcast content, and strive for full seedlings. After the seedlings emerge, they should be spaced, fixed and transplanted in time to make up for the deficiency.

During the summer solstice, all kinds of weeds in farmland grow as fast as crops. They not only compete with crops for water, fertilizer and sunlight, but also parasitize various germs and pests. Therefore, the agricultural proverb says, "If you don't hoe the roots and weeds in the summer solstice, it's like raising a poisonous snake to bite you." Grasping intertillage and hoeing is one of the important measures to increase production from summer solstice.

Baidu encyclopedia-summer solstice