After beginning of spring, which vegetable varieties can start to raise seedlings?

As the saying goes, "A year's plan lies in spring". The arrival of beginning of spring season is not only the new beginning of the four seasons, but also the beginning of the new year's farming activities in various parts of China. Next, let Lao Huang and Li introduce to you what vegetables are planted in beginning of spring and what vegetables can be planted after beginning of spring.

celery

Celery has a cool and humid climate and belongs to semi-cold-tolerant vegetables. Not resistant to high temperature. Drying can withstand a short-term low temperature below zero. The lowest temperature of seed germination is 4℃, and the optimum temperature is 65438 05 ~ 20℃. The germination is delayed below 65438 05℃, and hardly germinates above 30℃. The seedlings can tolerate the low temperature of -5 ~-7℃ and belong to green vernalization plants. The seedling temperature of 3 ~ 4 leaves is 2 ~ 10℃. The temperature after beginning of spring is suitable for celery planting, so the temperature after beginning of spring is suitable for celery planting.

potato

When potato tuber is propagated asexually, seed potato can germinate and grow at soil temperature of 5 ~ 8℃, and the optimum temperature is 15 ~ 20℃. The suitable temperature for the growth and flowering of plant stems and leaves is 16 ~ 22℃. The optimum temperature for tuber formation at night is 10 ~ 13℃ (ground temperature is 16 ~ 18℃), and tuber formation is slow when it is higher than 20℃. When the temperature drops to -2℃, it will be frozen.

Lettuce; lettuce

Lettuce likes cold environment, neither cold nor heat. The suitable growth temperature is 15℃-20℃, and the growth period is 90- 100 days. Seeds can tolerate low temperature and germinate at 4℃. The optimum germination temperature is 18-22℃, and almost no germination occurs above 30℃. During the plant growth, it likes cold climate, and the most suitable growth temperature is 15-20℃, with high yield and excellent quality. When the temperature continues to be higher than 25℃, the growth is poor, the leaves are coarse and old, and the leaves are slightly bitter. But the cold tolerance is also quite strong, even the short-term sub-zero temperature of 0℃ will not cause great obstacles to growth.

Shanghai Greenland

Qingxi in Shanghai is cool, and it grows best at 18 ~ 20℃ with sufficient sunshine, and it can safely overwinter at -2 ~-3℃. Some varieties can also be cultivated in summer, and suitable varieties must be selected according to the season. The cultivated soil is loam or sandy loam with good drainage and sunshine.

verdant

Onion is native to semi-cold zone, which has a wide range of temperature adaptation, prefers cold to heat, and can obtain good yield and quality under cold and warm conditions. The most suitable temperature range for green onion growth is 13-25℃, with the highest temperature of 45℃ and the lowest temperature of -20℃. The vernalization temperature is 2-7℃, and the general vernalization time is 7- 10 day. Seeds can germinate at 2-5℃, and the optimum temperature for seed germination is 15-20℃. In this range, the higher the temperature, the faster the germination.

pumpkin

The Yangtze river basin is usually in February-April. Sow early in hotbed or cold bed, and after the middle and late March, direct seeding can be carried out after germination. Sowing can be carried out in South China from February to September. Mainly divided into February-March spring sowing and August-September autumn sowing. The specific method is: soak seeds in hot water at 55-60℃ for 65,438+05 minutes to kill bacteria on the surface of seed coat, then pour cold water to cool to 30℃, soak for 4-6 hours, take them out, wrap them with wet sand cloth or towel, and accelerate germination to about 0.3 cm at 25-30℃ before sowing.