Phenological knowledge contained in agricultural proverbs?

The proverb "It's neither cold nor warm in the spring equinox" means that if the weather is not cold on a cold day, the cold weather will extend backward, and it will be very cold at the spring equinox next year.

Because the growth of perennial trees reflects certain objective climatic conditions to a certain extent, the agricultural proverb "Knowing five grains, seeing five trees first" comes into being. In guiding the sowing date, there are many proverbs reflecting phenology, such as "the pear blossoms are white, and soybeans are planted." "

Turtle back tide, rain omen. Earthworms climb the road, and it rains like hemp. The loach is quiet and sunny. Crocodile grass, the cold wave is coming. Chickens stay late, ducks crow happily, and storms come quickly. Judging the weather according to the 24 solar terms and the agricultural proverbs of sowing, harvesting and harvesting: rain will clear up.

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If it is cold and rainy in spring, it is cold and rainy in winter: if the temperature is low in spring, it will be rainy, but if the temperature is low and rainy in winter, it smells like rice, which is not so shocking; If it thunders on a thunderous day, it means that the solar terms are correct, the weather is good, the rice is harvested and the rice price is cheap. It thundered on February 2, and the meal was severely beaten: it means festival.