Rain is the second of the twenty-four solar terms, located around the fifteenth day of the first month of each year. The Sun is located at 330° ecliptic longitude. On this day, the daughter who is usually married will go home to visit her parents, and send her mother a piece of red silk and a pot of stewed meat.
The origin of solar terms
Rain, indicating that precipitation begins, and the amount of rain gradually increases. Rain means two meanings, one is that the weather is warmer, the precipitation is gradually increasing, and the other is in the form of precipitation, the snow is gradually less, and the rain is gradually more. In the "Seventy-two Waiting Solutions to the Moon Order", it is said: "In the middle of the first month, the sky is full of water. Spring begins with wood, and those who give birth to wood will also have water, so the spring will follow the rain. And when the east wind is thawed, it scatters into rain. "
Solar term characteristics
The rain is located around the fifteenth day of the first month of each year, and the solar term is from the rainy day to the end of the sting day. The sun's direct point of light also gradually approached the equator from the southern hemisphere, when the northern hemisphere, the number of hours and intensity of sunshine are increasing, the temperature rises faster, and the warm and humid air from the ocean begins to be active and gradually advances northward. At the same time, the cold air is not willing to show weakness in the weakening trend, and it is frequently competing with warm air, neither willing to withdraw from the dominant position, nor willing to take away the remaining cold.
Solar terms
Rainy season, the weather is uncertain, is one of the most common cold tide process in the year, suddenly cold and hot, warm and cold weather on the germination and rejuvenation of crops, forests, fruits and other growth and people's health is very harmful. While paying attention to the work of crops, greenhouse vegetables and cold prevention and antifreeze work of the industrial and trade departments, we must still pay attention to personal health care work to prevent the occurrence of epidemic diseases such as colds in late winter and early spring.
Related agricultural affairs
The meaning of rain festival is that the rain begins, the amount of rain gradually increases, the origin of the twenty-four solar terms in the Yellow River Basin, the weather is cold before the rain, but the snow is flying, and the sound of rain is difficult to smell. After the rain, the temperature can generally rise above 0 °C, and the snow is getting less and the rain is getting heavier. However, in the warmer southern region, rainfall is not uncommon even in the middle of winter. In agriculture, it is necessary to pay attention to the preservation of moisture and timely watering to meet the water supply during the critical period of wheat jointing and pregnant ears and rapeseed moss flowering. The mountains of the Northwest Plateau are still in the dry season, the air temperature is small, the wind speed is large, and it is prone to forest fires.
Three waits
In ancient times, the mainland divided rainwater into three seasons: "one waits for otters to sacrifice fish; the second waits for hong geese to come; and three wait for grass and trees to sprout." At this time, the otters began to fish, placing the fish on the shore as if they were sacrificed first and then eaten; five days later, the geese began to fly back from the south to the north; and in another five days, in the spring rain of "moisturizing and silent", the grass and trees began to draw out young shoots as the yang rose in the ground. Since then, the earth has gradually begun to show a thriving scene.