Who knows how many dragons control water and how many cows plow fields?

According to the date of the first day of the first month of each year (Chen is a dragon). For example, the fifth day of the first month is called "Five Dragons Governing Water", and the sixth day is called "Six Dragons Governing 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 "it doesn't rain when there are many dragons".

A few cows are ploughing the land.

The first ugly day of each year (ugly is a cow) is on the first day of the first month, that is, "a few cows plow the field." The more cattle, the better. The more, the better.