What crops are planted in the first frost season?

Crops suitable for solar terms in the first frost are onion, celery and coriander.

1, onion.

Onion has strong adaptability, the highest temperature is 45 degrees, and the lowest temperature is MINUS 20 degrees. It is most suitable to grow in the environment of 10 to 20 degrees, which is mainly affected by moisture, temperature, light, climate, soil and fertilizer. Sowing before and after the first frost is just right.

2. celery.

Celery is a cold vegetable. Generally, the seeds are sown from September to165438+1October, and harvested from February to April of the following year. Under the condition of cool climate and short sunshine, celery grows vigorously with high yield and good quality. Autumn is most suitable for the growth of celery in the north and south.

3. coriander.

Coriander is a cold-resistant vegetable. Autumn planting is most suitable for winter growth. Sowing before and after the first frost can catch up with the harvest before the Spring Festival, but before planting coriander, the seeds need to be treated: break in half and soak in warm water; This is more conducive to the growth of coriander after sowing.

The influence of the first frost on crops;

First of all, frost has a good effect on some crops, such as persimmons mentioned above and cauliflower in snow, which will be delicious after frosting. As the saying goes, "first frost rice sees Man Cang", which means that the first frost has frost, and the whole grain is abundant.

This is the accumulated experience of farmers. The main reason is that the first frost froze the pests in the soil to death, so the crops would not be harmed by pests, and the harvest would reduce a lot of losses, thus gaining a lot.

Everything has two sides. Similarly, the first frost will also bring some bad effects to some crops. Because the climate is getting colder, the low temperature at night is easy to form frost. For some crops with poor cold tolerance, frostbite is easy to occur, such as wheat, rape and some small plants at seedling stage. In addition, the first frost will also affect the quality of cotton, making cotton form "frost flower" or "safflower".