What are phenology and phenology?

It refers to the phenomenon that plants germinate, sprout, spread leaves, blossom, bear fruit, fall leaves and rest regularly with the seasonal change of climate in a year, which is called phenology or phenology; The corresponding dynamic period of tree organs is called bioclimatic period, which is called phenological period for short.

Phenology:

Phenology is mainly a science that studies the periodic relationship between plants (including crops), animals and environmental conditions (climate, hydrology and soil conditions) in nature. Its purpose is to understand the changing law of natural seasonal phenomena and serve agricultural production and scientific research.

On phenological poetry:

It's early, but it's late. It's the right time to grow cotton in Grain Rain.

The tomb was scraped at Qingming, and it rained for forty-five.

It's sunny and sunny, and it's raining in Grain Rain. It didn't rain in Grain Rain, and then it began to rain.

Clear sky in Wan Li, six animals flourish; Clear rain will damage all the fruits.

It rains a lot in Grain Rain, but it doesn't rain late in Grain Rain.