When is the most suitable time to plant overwintering lettuce?
Lettuce is a vegetable that can be eaten directly; it tastes sweet and has a crisp, tender texture, and it is a common green vegetable on our dining tables. So when is the planting time for overwintering lettuce?
1. Planting time for overwintering lettuce
Overwintering lettuce is generally grown in greenhouses and can be planted at any time. Normal lettuce is sown in spring from March to April and in autumn from July to August, and can be harvested for eating one month after transplanting.
2. Lettuce cultivation methods
1. Seed selection
Choose varieties with strong disease resistance and vigorous growth. Currently, the popular ones on the market include curled lettuce, glass lettuce, and head lettuce; you can randomly choose one variety to plant.
2. Seedbed
Before sowing, first prepare the seedbed for raising seedlings. The seedbed soil should be loose and fertile organic soil. You can also mix ordinary loose soil with organic fertilizer and ammonium sulfate, then water the soil thoroughly once.
3. Sowing
Lettuce seeds are very small and light, so they need to be mixed with sandy soil and then evenly scattered on the seedbed, covered with 0.5-1 cm of soil.
4. Seedling raising
After sowing, keep the seedbed temperature between 12-20 degrees, maintain ventilation, and avoid direct exposure to sunlight. When the seeds germinate and grow two or three leaves, they can be transplanted.
5. Transplanting
Lettuce has a weak root system, so when transplanting, the seedlings need to be lifted together with the soil. When transplanting, keep row spacing and plant spacing at 4x4 cm. After transplanting, apply fertilizer once, then water thoroughly once.
6. Harvesting
As long as there is sufficient fertilizer and water, lettuce will grow extremely quickly and can be harvested in 1-2 months. When harvesting, be careful to avoid damaging the roots, otherwise it will not be able to continue growing.
Lettuce tastes sweet and has a crisp, tender texture, and many people like to eat it as salad. Lettuce is also easy to grow and is very suitable for large-scale planting.