When is Lixia in 2021 and what is the weather like?
2021 Lixia is on May 5, 2021 in the Gregorian calendar One day, the specific time is 14:47:1 pm on May 5th, which means that the temperature is gradually rising, the amount of precipitation is also increasing, and the weather conditions are abnormally hot and cold, so you need to be prepared to keep warm and waterproof.
The time of Lixia in 2021
"The southern country is like summer and the northern country is spring, and the green and beautiful Jianghuai are all shades of trees." Lixia is the seventh of the twenty-four solar terms.It is also the first solar term of summer."When the sun reaches 45° ecliptic longitude, usually on May 5 or 6 of the Gregorian calendar every year, it heralds the transition from spring to summer.After the beginning of summer, the temperature in Jiangnan region of China will rise rapidly, and the rainfall and the number of days with rainfall will increase significantly..So the time of the beginning of summer in 2021 is on the Gregorian calendar on May 5, 2021 at 14:47:1 pm, and it will end at 3:36 am on May 21, 2021.
The beginning of summer in 2021 Climatic characteristics
1."Lixia" is only a forecast for the coming of summer, and does not mean "summer".Meteorology has strict standards for the beginning of summer.If the daily average temperature of a place is stable at 22 When the temperature is above ℃, the beginning of summer can only be determined.Before and after the "Lixia", only the area south of the line from Fuzhou to Nanling in China may enter summer, while most of the other areas are still in spring.In some areas in the northeast and northwest, this time even Spring has just entered.
Before and after the "Lixia", only the areas south of the line from Fuzhou to Nanling in China have really entered summer, while some areas in the northeast and northwest have just entered spring at this time.The average temperature in most parts of the country It is around 18-20°C.At this time, although the temperature in North China and Northwest China has risen rapidly, there is still little precipitation.In addition, the spring is windy, the evaporation is relatively strong, and the weather is very dry.
2.After the beginning of the summer solar term, in the middle and lower reaches of the Yangtze River and southern China, the rainfall in mid-May increased rapidly, and South China at this time also entered the peak of the pre-flood season.The characteristics of expanse and intensity are violent.In the Pearl River system of Guangdong and Guangxi and the Minjiang River system of Fujian, the highest water level of the year often occurs during this period.It is necessary to be alert to the floods and debris flow disasters caused by the heavy rain during the period, and the impact on industrial and agricultural production, transportation, and the safety of people’s lives and properties.
The phenological characteristics of Lixia
Lixia has three marquis , the first time the grasshoppers sing, the second time the earthworms come out, and the third time the king melons grow; it is said that in this solar term, the chirping of the grasshoppers in the field (one is said to be the sound of frogs) can be heard first, and then it can be seen on the ground.The earthworms dig the soil, and then the vines of the king gourd start to climb and grow rapidly.At this time, the frogs begin to clamor for the coming of summer, the earthworms are also busy helping the farmers to loosen the soil, and the wild vegetables in the rural ridges are also competing with each other for the unearthed day.The sun climbed long.The book "The Seventy-two Hours of the Moon Order" written by Wu Cheng of the Yuan Dynasty said:"Lixia is the April festival.Li character interpretation sees spring.Summer, fake also.Things are all fake so far."
Agricultural activities in the beginning of summer
Before and after the beginning of summer is the season for early rice planting in the north and south of the Yangtze River."You can plant the full moon seedlings, but not the full moon grass".At this time, the temperature is still low, and the seedlings are planted.It is necessary to strengthen management immediately afterwards, to apply fertilizer early, to cultivate the fields early, to treat diseases and insects early, and to promote early development.The middle rice sowing should be swept away as soon as possible.At this time, the spring shoots of tea trees develop the fastest.Rarely harvested, but never stopped in the beginning of summer", we must concentrate all our efforts on harvesting in batches.Dry air and soil drought in North China, Northwest China and other places often seriously affect the normal growth of crops.In the severe weather that reduces production, timely irrigation is a key measure for drought resistance and disaster prevention.
In the beginning of summer, everything is flourishing.The summer crops are in the late stage of growth, the winter wheat is blooming, the rapeseed is close to maturity, and the summer crop is basically a foregone conclusion., so there is a saying in the farmer that "the beginning of summer sees summer".The management of rice planting and other spring-sown crops has also entered the busy season.The beginning of summer mainly controls tomato early blight, gray mold, leaf mold, etc., cucumber downy mildew, bacteria Sexual angular spot, eggplant brown scab, cotton blight, cowpea rust, root rot, etc.Pests mainly include cutworm, aphids, cabbage caterpillars, flea beetles, leaf miners, etc.
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