How long is the growth cycle of lettuce?

Introduction to lettuce growth

Lettuce is native to China and is suitable for growing in slightly acidic soil. It is cultivated in various parts of China and also grows wild. It is a vegetable.

Lettuce growth cycle

Lettuce has shallow roots and requires high oxygen. Sandy loam and loam are the best soils for growing lettuce. The growth cycle is about 80-100 days.

Lettuce growth rate

It takes 20 to 25 days for lettuce to develop from the "heart" to the first ring of 5 leaves. It takes 15 to 30 days for the seedlings to form a second leaf sequence. It takes about 30 days for the lettuce stem to expand rapidly and the leaf area to expand. Lettuce is usually planted in March or April in spring. It grows fast and can be harvested in 40 to 45 days.

Lettuce growth cycle management

In normal years, the yield of lettuce per mu is around 2,500 to 4,000 kilograms. The growing period is about 30 days, and it can be harvested 30 days after sowing.

Temperature management: Lettuce seeds are best germinated in an environment of 15-20 degrees. It can withstand low temperatures of -5-6 degrees and grows best in an environment of 12-20 degrees.

Fertilization management : It is best to apply 4000-5000 kg of decomposed organic fertilizer per mu for lettuce, and add 15 kg of superphosphate and 100 kg of wood ash, or 150 kg of cake fertilizer, 50 kg of superphosphate and 25 kg of potassium sulfate per mu.