When will the lettuce seeds be planted? How long will it take to sprout? How do you plant it?

Lettuce is a common name for leaf lettuce, which is grown in most parts of our country. Because the planting method is simple and easy to take care of, many people raise it to make money, but if you want lettuce to produce high yield, you need to choose a good planting time. When will the lettuce seeds be planted? How long will it take to sprout? How do you plant it?

Planting time of lettuce:

Lettuce likes the cold climate, so the sowing time is usually in spring and autumn. Spring usually begins to sow from February to April, and can be harvested from May to June, while autumn sowing can start at the end of August and can be harvested from September to October. Because the characteristics of different varieties of lettuce are different, when choosing the sowing time, you should first know the description of the seeds of lettuce you buy. Then sow seeds in combination with the above sowing time. Spring and summer are suitable for sowing loose leaf lettuce (such as cream lettuce, colored leaf lettuce), more heat-resistant, autumn and winter are suitable for sowing heading lettuce (also known as western lettuce), not heat-resistant.

Time of seed germination:

Sprouting in about 10 days. The seed germination temperature was 15 ℃ 20 ℃, which was higher than 25 ℃. The seed coat was blocked by water absorption and germinated poorly. Lettuce should be treated at low temperature when sowing in summer. After soaking the seeds, put them in the freezer to sprout, and then sow the seeds after the buds are white.

Sprouting method:

Lettuce seeds are generally suitable for sowing and raising seedlings in the sunny border in mid-and late February, but the main problems of sowing in the sunny border in spring are insufficient ground temperature, slow emergence and overwork. In order to ensure the whole seedling, full seedling and potato five, seed soaking should be carried out to promote germination before sowing. Lettuce is cultivated in the open field in autumn, usually sowing and raising seedlings in the middle and late August. The seedling stage is at the turn of summer and autumn, and the weather is hot, and the suitable temperature for lettuce seed germination is 15-25 degrees, and the germination rate of seeds above 25 degrees decreases obviously.

Therefore, it is difficult for seeds to germinate under natural conditions. Therefore, it is also necessary to soak the seeds and promote germination in the environment of 15-20 degrees. The method of soaking lettuce seeds before sowing in spring is as follows: soak the seeds in warm water of 25-30 degrees for 7-8 hours, then fish them out, dry them a little bit, and accelerate germination at 15-20 degrees Celsius. When 80% of the seeds sprout, they can be sown. Due to the low temperature of well water in summer and the high temperature of air in the well, lettuce sprouting in summer, people are used to hanging sprouting in the well.

The specific method is: soak the seeds, hang them in a cloth bag, hang them into the well, about 0.5 meters above the water, wash them with clean water once a day, and sow most of the seeds after 3-4 days. In addition to the above-mentioned germination methods, the seeds were treated with plant hormones, such as soaking the seeds with cytokinin 100PPM solution for 3 minutes, or gibberellin 1000PPM solution for 2-4 hours, and then accelerating germination.

Attached sowing method

1. Sowing: lettuce seeds are too small and light, need to be accompanied by fine sand, mix evenly in a container, and then sprinkle on the soil, covering 0.5 cm, a thin layer, 15-20 degrees, about 3-5 days, it is difficult to germinate when the temperature is higher than 25 degrees. When planting in summer, soak the seeds for 1 night, then wrap them in wet gauze, put them in the freezer (about 5 degrees), and sow more than half of the seeds when they are white.

2, seedling stage: lettuce seedling stage to keep the soil moist, can not dry, keep the soil permeable, 2-3 true leaves time seedlings, plant spacing 5-8 cm.

3. Transplanting: when the lettuce seedlings grow to 5 or 6 true leaves, the seedlings should be watered thoroughly before moving, and the soil on the roots should be moved to a large basin. The distance of loose leaf lettuce plant is 15 cm, and the result is 30 cm. Water thoroughly, put the seedlings in a cool place in summer, stand firm in a week or so, and shine in the normal sun.

4. Fertilization: lettuce seedlings were fertilized once a week after transplanting (nitrogen fertilizer was the best mature organic fertilizer), organic fertilizer or total nitrogen, phosphorus and potassium compound fertilizer was applied again 2 weeks and 4 weeks after transplanting, and fertilization was stopped 2 weeks before harvest.

5. Watering: lettuce is watered early or late at high temperature, a small amount of water is better, but avoid waterlogging, the early growth stage is suitable for water control and keep moist.

How to plant lettuce in a flowerpot?

1. Select the appropriate container:

As long as the containers with good drainage are suitable for growing lettuce, the root system of lettuce is very shallow, there is no need for too deep flowerpots, suitable for wide and shallow containers, the bottom of the basin should have drainage holes, with a depth of 15 centimeters, usually plastic pots, pottery pots or earthen pots will do.

Lettuce is a kind of vegetable that likes cold environment. It can be planted in four seasons without too high temperature. Of course, you only need to grow lettuce in warm areas in winter.

Seeds are usually used to raise seedlings, and the seeds are evenly scattered under 2 cm of soil under the basin soil. keep the basin soil slightly moist, raise it in a bright, airy and warm place, and take root and sprout in about two weeks.

To grow lettuce in summer, put it in a shady place, keep the environment cool and ventilated, prevent exposure or hot environment, and only need a little light in the morning or dusk.

2. Selection of potted soil

The soil that maintains lettuce can usually be garden soil, of course, it is best to use potted soil rich in humus, and the best is rotten manure plus garden soil and peat soil. Compost soil is also a good choice to ensure that the soil is rich and drained.

3. Pay attention to sprinkling water

The summer demand often sprinkles water, insist that the basin soil is slightly moist, do not let the basin soil be completely dry, sprinkle water when the basin soil is slightly dry, and prevent the basin soil from stagnant water, which simply forms root rot.

4. Apply thin fertilizer frequently

Lettuce is an extraordinarily fast-growing vegetable. During maintenance, you need to make sure that there is enough fertilizer, can be fertilized once every two or three weeks, and can be given a light and uniform fertilizer, usually with quick-acting liquid fertilizer, not thick fertilizer.

Other points for attention:

Potted lettuce plants should not be planted too closely, leave some proper distance, maintain proper shade and prevent the soil from being too boring, especially in the hot afternoon, giving a cool environment.

Time: 2019-04-10 Click: