Lettuce planting can be carried out between July and September; lettuce planting methods include: germination, maintenance, young plant management, and planting.
1. Germination
Lettuce is an annual or biennial herbaceous plant, generally suitable for sowing in autumn between July and September. Choose high-quality lettuce seeds and soak them in warm water for 2 to 3 hours. After the seeds swell, scrub them clean and wrap them in a damp cloth. Place the wet cloth in a warmer location, with the temperature stable at around 25 degrees.
2. Maintenance
During the maintenance period, attention should be paid to watering the seeds every day to provide them with moisture, and to keep the wet cloth moist. In about 3 to 6 days, the seeds will germinate and can be sown in loose, fertile and well-drained soil. During the maintenance period, the seeds should be watered appropriately to provide them with sufficient moisture to facilitate seed germination.
3. Management of young plants
After the lettuce seedlings emerge, they need to be covered with a shading net. Water the lettuce in the morning or evening and apply an appropriate amount of thin fertilizer to facilitate the growth of the lettuce plants. Be careful not to over-fertilize young lettuce plants during management.
4. Colonization
Introduction to lettuce
Lettuce is an annual or biennial herbaceous plant of the genus Lactuca of the Asteraceae family. Its underground roots are vertical, the above-ground stems are upright, and the stems and branches are white; the leaves are oval, with wavy edges, and hairless on both sides; the corolla is spherical, with hairless outside, the flowers are smaller and lighter in color; the fruits are light brown and oblanceolate. Shape; seeds dark brown or off-white; flowering and fruiting period from February to September. According to records in "Qing Yi Lu" written by Tao Jian of the Song Dynasty, envoys from the Kuo Kingdom came to the Han Dynasty, and the Sui people asked for vegetable seeds. The stems were as fat as bamboo shoots and were named "lettuce" because they came from the Kui Kingdom.
Lettuce is native to the Mediterranean coastal areas and is mainly distributed in Europe and America. It was introduced to China from West Asia in about the fifth century and is currently cultivated throughout China. Lettuce is a cold-tolerant vegetable that likes cool climates and is not resistant to high temperatures. It likes moisture and should grow in clayey loam or loam soil that is rich in organic matter and retains water and fertilizer. There are two methods of reproduction: asexual reproduction and sexual reproduction.
For the above content, please refer to Baidu Encyclopedia - Lettuce (Lactuca sativa of the Asteraceae family)