Lettuce appearance delicate, so planting time to avoid the heat and cold, usually in the spring and fall sowing planting. Lettuce growth rate is extremely fast, the growth cycle is also shorter, generally in January after planting can be picked for consumption, spring sowing in March-April, fall sowing in July-August, now also through the greenhouse greenhouse method, anti-seasonal planting.
1, choose the seed
Select the seed disease resistance, growth of stronger varieties, now popular on the market have leaf lettuce, glass lettuce, ball lettuce three varieties, you can randomly choose a planting.
2, seedbed
Seeding before the preparation of seedling beds, seedbed soil should be loose and fertile organic soil, can also be ordinary loose soil mixed with organic fertilizer, ammonium sulfate blending, the soil will be watered once thoroughly.
3, sowing
Lettuce seeds are very small and light, you need to mix it with sand, and then evenly sprinkled on the seedbed, mulching 0.5-1cm can be.
4, seedling
After sowing, keep the temperature of the seedbed between 12-20 degrees, keep ventilated, avoid exposure to the sun, when the seeds germinate and grow two or three leaves, you can plant.
5, planting
Lettuce root system is weak, so planting seedlings need to be brought up with the soil, planting to maintain row spacing, spacing 4x4cm, planting fertilizer once, and then watered a thorough watering.
6, harvest
Lettuce as long as the fertilizer is sufficient, its growth will be extremely rapid, 1-2 months can be harvested, harvesting should be careful to avoid harming the roots, so that it can not continue to grow.