20 1 10 billion years flood control

Four dragons control water, one cow plows the field, and two people share the cake. It belongs to a good year. Several dragons control water according to the first day of the first month of each year (Chen is a dragon). For example, the seventh day of the first month is called "seven dragons manage water" and the sixth day is called "six dragons manage water". In the same way, the first ugly day (ugly day for cows) is when several cows plow their fields a few days later. And so on.

Several dragons control the water.

It is determined according to the date of the first day of the first month of each year. For example, the fifth day of the first month is called "Five Dragons in Charge of Water", and the sixth day is called "Six Dragons in Charge of Water", and so on. It is said that the more dragons, the less rainfall, and the less dragons, the more rainfall. Since ancient times, there has been a folk proverb that "there are many people and it doesn't rain".

China is a big agricultural country, which has always valued agriculture over commerce. Several dragons control the water and several Niu Gengdi, which is a harbinger of the agricultural harvest that year.

"Dragon" is the god who manages the rain. Using five dragons to control water can achieve the effect of good weather, because there are dragons in the southeast and northwest, each performing its duties. The dragon disappeared and flooded in the same year; If there are many dragons, there will be a drought that year. The reason is that the dragon god who manages rainwater is not so afraid that he can't manage it, so he is busy sowing rainwater everywhere and even flooding; There are many dragon gods in charge of rain, just like "three monks have no water to eat" or even drought. As for the degree of waterlogging, it depends on the degree of water control by several dragons. The fewer dragons there are, the more serious the waterlogging is. The degree of drought is the same.

Niu Gengdi is different, the less the better! At that time, it was best to have only one Niu Gengdi. That's because the weather is fine, there is no drought or waterlogging, and the land is soft. Only one cow can plow Kyushu according to the season! In case of drought or waterlogging, many cows need to plow at the same time, so as not to miss the farming season, and farmers need to work harder to harvest.

So how do you know how many dragons will control water this year and how many Niu Gengdi will control water? I'm telling you, it's actually very simple. It depends on the date when the dragon and the ugly cow first appeared in the first month of the lunar calendar. For example, the first "Chen" appeared on the 11 th day of the first month of 2006, and in 2006, the 11 th Dragon was used to control water; The first ugly appearance in 2006 was on the eighth day of the first month, so this year is the eighth Niu Gengdi.