Jiulong water control

Huang Li used "Jiulong Water Control" to predict the rain in the coming years. The reason is that many dragons manage water, but there is no dragon rain as a result.

There are five dragons to control water, two dragons to control water and so on.

Up to now, as the sofa says, "One thing is not managed by one person or department." When one person sees it, no one can manage the situation well. "

Similarly, there are some sayings in the Yellow Calendar, such as several Niu Gengdi, several butchers and pigs, and several silkworms taking a bath, all of which are predictions of agricultural production. It reflects the agricultural civilization and farming culture of China for thousands of years.