What effect does the first frost have on crops?

See the first frost in first frost and the dense valley in Man Cang ". It can be seen that in rural areas, the first frost has a great influence on the crop harvest in the coming year. The reason is that the first frost froze the pests in the soil to death, so the dealers won't suffer.

The bad side:

With the gradual cooling of the climate, frost is easy to form, which will cause freezing damage to crops with poor cold resistance at seedling stage, such as wheat and rape. Frost will also affect the quality of cotton, forming "flowers after frost" or "red flowers"