Planting method and time of lettuce (goose lettuce)

Lettuce, also known as leaf lettuce, goose lettuce, lettuce, originated in Europe and the Mediterranean coast, and later introduced into China, is a common vegetable on the table. So, what is the method and time of growing lettuce? Let's study together.

First, planting time

The appearance of lettuce is delicate and generally sown in spring and autumn, because it is hot in summer, the sun is strong, it is easy to burn leaves, the growth rate of lettuce is extremely fast, and the growth cycle is also short. generally, it can be picked and eaten after planting for one month, spring sowing in March-April, autumn sowing in July-August, and now it can also be planted in an out-of-season greenhouse.

Second, lighting requirements

Lettuce is a long sunshine plant with sufficient light, good growth, thick leaves, lettuce is tolerant to weak light and has the characteristics of making use of weak light, but sufficient light is beneficial to plant growth, lettuce leaves are tight, and when the light is too weak, the leaves are thin and loose. The yield is reduced, so the cultivation should not be too dense.

3. Planting methods

1. Seed germination

When growing lettuce in the high temperature season, the seeds must also be germinated at low temperature. first, soak them in tap water for about six hours, scrub them clean, remove them, wrap them with wet gauze and sprout them in an environment of 15 to 18 degrees Celsius.

2. Seedling raising and transplanting

Before sowing lettuce, the seedbed should be watered, and then the seeds and the same amount of wet sand should be stirred evenly before sowing. When planting in greenhouse or in open field in winter and spring, attention should be paid to maintaining the temperature of the seedbed.

3. Scientific fertilization

The planting soil is required to be a clayey loam rich in organic matter and strong in fertilizer and water conservation. Basically, per thousand kilograms of lettuce, it needs to absorb 2.5kg of nitrogen fertilizer, 2.4kg of phosphorus fertilizer and 9kg of potassium fertilizer, so it is necessary to apply fertilizer according to this amount. Calculated on the basis of 2000 kg per mu, the average absorption of nitrogen, phosphorus pentoxide and potassium oxide per mu is 5.1kg, 2.4kg and 8.8kg, respectively. Lettuce belongs to fast-growing leaf lettuce. The growth period is short and can be harvested in about a month, so there should be an adequate supply of nitrogen fertilizer throughout the growth period.

4. Careful planting

When planting, you must be careful. First, irrigate the seedling bed the day before, and bring more soil the next day. When planting, first open a ditch on the border surface with a depth of 4 to 6cm.

5. Management after planting

Lettuce likes to be wet, so it is necessary to water enough water and supply enough water in the growth process. Slow seedling water should be watered once within five to seven days after planting, and once every two or three days at other times. It is important to stop watering before picking.

6. Pest control

The main diseases of lettuce are soft rot, virus disease, downy mildew and so on, among which Sclerotinia sclerotiorum and soft rot are more harmful, so it is suggested that we should do a good job in disease and pest prevention in advance.

The above is the planting method and time of lettuce arranged by Tuliu.com Xiaobian for you. I hope I can help you!