The market demand for lettuce has been growing in recent years. Many vegetable farmers have started to plant lettuce. What should be paid attention to in the cultivation of high-quality lettuce? The following is a simple explanation for everyone.

Variety selection

Lettuce can be divided into several types according to the growth pattern of the leaves. For the lettuce, it is characterized by the formation of leaf balls by the top leaves. The lettuce is also divided into the Great Lakes 659 variety and the avant-garde 75 varieties, as well as the Salinas variety, the Beishan No. 3 variety, the Mamike variety and the green varieties. The characteristic of wrinkled leaf lettuce is that it does not pass the ball. It has red-spotted purple leaf lettuce and red-leaved lettuce varieties, as well as green wave varieties and Dongshan lettuce varieties. The leaves of the erect lettuce grow longer and grow upright. The entire position of the leaves is jagged, the flesh of the leaves is thicker, and the meat is thicker and the flavor is not good. Few people in the country will grow this type of lettuce.

2. Planting environment selection

Lettuce is a vegetable that likes cold and cool environments. It can't stand the cold weather and can't stand the hot weather. Generally suitable for its growth temperature is 15 degrees Celsius to 20 degrees Celsius, the development period is generally 90 days to 100 days. The seeds are not afraid of cold and are still relatively strong, and generally meet the germination at 4 degrees. The temperature at the time of germination is preferably maintained at 18 to 22 degrees, and if the temperature exceeds 30 degrees, it may not germinate.

The growth period of lettuce is like cold and cool temperatures. Keeping at 15 to 20 degrees is the most suitable for lettuce growth. If the temperature is higher than 25 degrees, the growth of lettuce will appear to be poor. Lettuce is not afraid of cold weather, and sometimes zero will not affect its growth in a short time below zero.

3. Seeding and seedling

From August of each year to February of the second year, it is the time to sow lettuce. In fact, it is better to plant in the middle of October to the middle of December. Although it can be planted from March to July, the seeding period will be shorter and the yield will be low. In the colder winters or when the spring is just beginning, you can plant lettuce in the greenhouse or in the shed. When planting lettuce in summer, make a shade net and shade to help the lettuce cool down.

The above is mainly to explain the scientific cultivation method of lettuce from these three aspects, and the needy vegetable farmers can have a look!

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