What season is lettuce a vegetable What season is lettuce a dish in which season

Lettuce is a vegetable from January to April. Also known as lettuce, lettuce of the Asteraceae family lettuce species can form a variant of fleshy tender stems, a one- or two-year-old herbaceous plant. Also known as lettuce, lettuce shoots, green shoots, lettuce.

Lettuce is native to the Mediterranean coast and was introduced to China around the 5th century. The above-ground stems are edible, the bark of the stem is white-green, the flesh of the stem is brittle and tender, and the young stems are emerald green, which turn white-green when mature. It mainly eats fleshy tender stems, which can be eaten raw, cold, fried, dried or pickled, and young leaves can also be eaten.

The stems and leaves contain lettuce, and lettuce (C11H14O4 or C22H36O7) is contained inside. It has a bitter taste and has an analgesic effect.

Introduction to lettuce types:

1. Sharp-leaf lettuce.

The plant is tall and tall, with pale green leaves, draped shape, with shallow wrinkles on the page, slightly white powder, and more white powder on the back of the leaves. The bamboo shoots are long and rod-shaped, and the upper part is tapered, about a foot long. It is distributed in central or northern China.

It can be eaten raw or cooked, or pickled. It has strong cold resistance, heat resistance at the seedling stage, and can produce about 8,000 catties per mu in spring and autumn.

2. Green skin lettuce.

Newly bred, early-maturing, heat-resistant, long round leaves, not easy to chaff, and generally resistant to moss. The leaves are 23-30 cm long, obovate, the leaf color is green, the fleshy stem skin is thin, the skin is light and tender greenish-white, and the taste is fragrant.

Lettuce is a seasonal vegetable in spring and summer.

Lettuce can be cultivated in spring and autumn or overwinter, mainly in spring and harvested in summer. Lettuce is a kind of vegetable that is cultivated more in green vegetables, and the first period of lettuce is mainly in April and May, which is the main vegetable to regulate the spring market.

Lettuce is usually planted in early spring every year, and in the summer, there are high-yielding lettuce waiting for the farmer to harvest. Yangtze River Basin.

The lettuce overwinters in the open field, mainly spring lettuce, generally sown in the autumn of the first year in September-October, 40-50 days when the seedlings have 5-6 true leaves.

Planting, it can be safely wintered in winter, and there is enough time to grow after returning to green in the next spring, and high yields can be obtained by harvesting in April and May.

The ripening time of lettuce is related to factors such as climate, variety, and planting method, and generally matures around April in spring. You can also plant out-of-season lettuce in the greenhouse, control the temperature of the environment, and pick it all year round.

The growth of lettuce has high soil requirements, shallow root system, high oxygen requirements, and is most suitable for growing in slightly acidic sandy soil. It is a kind of shady and cold crop, not tolerant to high temperatures, and the plant needs a certain temperature difference to grow, about 20 during the day and about 8 at night.

Sowing time of lettuce seeds

1. Spring lettuce: greenhouse seedlings from December to March, and seedlings in the open field from mid-February to late March.

2. Summer lettuce: cultivated in the open field from April to early to mid-May, covered with shade nets from late May to July, and planted in direct broadcast or high density.

3. Autumn lettuce: From July to September, use shade nets to cover cultivation and transplant seedlings.

4. Overwintering lettuce: seedlings are raised in the open field from October to November.

Lettuce, commonly known as lettuce, belongs to the Asteraceae family, prefers a shady climate, and is mostly cultivated in spring and autumn. However, with the development of technology, the tree can be cultivated in the greenhouse in winter, and in early summer, the temperature at the top of the mountain is cooler, so it can also be cultivated on the top of the mountain. Therefore, as long as you take reasonable measures, you can basically cultivate it in all seasons.

Because lettuce is very rich in eating and relatively cheap, it is a very common green vegetable in daily family food, and for many people, in most people's concepts, lettuce is a vegetable that can be grown in all seasons, because it can be bought at any time in the supermarket.

But under natural conditions, lettuce is a 1-2 year old herbaceous plant with a production period of 1 to 4 months, so eating lettuce in summer is the most common. Lettuce is very adaptable to the environment and can be cultivated in either spring or autumn; It can also be cultivated over the winter, but it is mainly cultivated in spring and harvested in summer. Lettuce is divided into two types: stem and leaf.

These two are cultivated everywhere and are one of the most important vegetables in spring, autumn and winter, and the best time to eat lettuce is in summer. There is a saying: lettuce eaten in spring is more valuable than **; It can be seen that the nutritional value and health care effect of lettuce are very strong.

In the traditional sense, planting plants is planted in spring and harvested in autumn, and like some warm areas in the south, it can be carried out, secondary planting, and can be harvested twice a year, but now we have mastered some agricultural greenhouse planting technology, so as to create a greenhouse environment, so that in the greenhouse, lettuce, suitable temperature, suitable nutrients, then lettuce can be grown, so, now, we eat lettuce, and some other plants, are available regardless of season, Including watermelons that we often eat, like we know that summer is the season when watermelons are abundant, but now we can also eat sweet big watermelons in winter, in fact, it is the same reason.

Lettuce is a spring vegetable. Lettuce, also known as lettuce, one or two years of herbaceous plants, also known as stem lettuce, lettuce shoots, green bamboo shoots, lettuce, etc., the production period is 1-4 months, the origin is on the Mediterranean coast, about the fifth century into China. The above-ground stems can be eaten, raw, cold, fried, dried or pickled, and young leaves can also be eaten.

Lettuce is a spring vegetable. Lettuce, also known as lettuce, one or two years of herbaceous plants, also known as stem lettuce, lettuce shoots, green bamboo shoots, lettuce, etc., the production period is 1-4 months, the origin is on the Mediterranean coast, about the fifth century into China. The above-ground stems can be eaten, raw, cold, fried, dried or pickled, and young leaves can also be eaten.