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

lettuce is commonly known as leaf lettuce, in most areas of our country are planted, because the planting method is simple, and very easy to take care of, so many people raise it to make money, but if you want lettuce high yield, you need to choose the planting time, then lettuce seeds when planted? How many days does it take to sprout? How?

Growing time:

Lettuce likes cold climate, so sowing time is generally spring and autumn two seasons, spring generally in February to April to start sowing, May to June can be harvested, and autumn sowing can start sowing at the end of August, September to October can be harvested, because different varieties of lettuce characteristics are different, in the selection of sowing time, to first understand the description of the lettuce seeds bought, and then combine the above sowing time for sowing. Spring and summer season suitable for sowing loose leaf lettuce (such as cream lettuce, color leaf lettuce), more heat-resistant, autumn and winter season suitable for sowing head lettuce (also known as western lettuce), heat-resistant.

Seed germination time:

Germination takes about 10 days. The germination temperature of seeds is 15-20℃, higher than 25℃, because the seed coat is blocked from absorbing water, the germination is poor. lettuce in the summer sowing needs low temperature treatment, seed soaking after the refrigerator in the cold room germination, to bud white after sowing.

Germination method:

Generally, it is suitable for lettuce seeds to be sown in the middle and lower ten days of February, but the main problems of sowing in the open bed in spring are insufficient ground temperature, slow emergence and overwork. In order to ensure that seedlings complete, seedlings Qi, potato five, before sowing should be soaked germination. lettuce cultivation in autumn, generally in mid-August, late sowing seedlings. Seedling period is at the turn of summer and autumn, the weather is hot, and the suitable temperature for lettuce seed germination is 15-25 ℃; above 25 ℃ seed germination rate decreased significantly.

Therefore, under natural conditions, seed germination is more difficult. Therefore, it is also necessary to soak seeds and germinate in an environment of 15-20 degrees. The method of soaking seeds before sowing in spring lettuce is as follows: soaking seeds in warm water of 25-30 degrees for 7-8 hours, then taking them out, drying them slightly and then germinating at the temperature of 15-20 degrees. When 80% of seeds germinate, they can be sown. Due to the low temperature of well water in summer and the large air temperature in well, lettuce germinated in summer, and people used to hang it in well for germination.

The specific method is: will learn to soak the seeds, after a little drying into the bag, hanging to the well, about 0.5 meters away from the water surface, every day out with clean water washing again, after 3-4 days, most of the seeds germinate, you can sow. In addition to the above-mentioned germination method, seeds are treated with plant hormones, such as soaking seeds with cytokinin 100PPM solution for 3 minutes, or soaking seeds with gibberellin 1000PPM solution for 2-4 hours, and then germination, the effect is very good.

with seeding method

1, sowing: lettuce seeds are too small and too light, need to be accompanied by fine sand, placed in a container to stir evenly, and then scattered on the soil, covered with 0.5~1 cm, a thin layer, 15~20 degrees about 3~5 days germination temperature is higher than 25 degrees difficult to germinate. In summer, seeds need to germinate. Soak seeds for 1 night, then wrap them with wet gauze and put them into the refrigerator (about 5 degrees Celsius). When more than half of the seeds are exposed, sow again.

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

3. Transplanting: When the vegetable seedlings grow to 5~6 true leaves, transfer the seedlings, pour water thoroughly before moving, and move the soil on the roots to the big pot together. Scattered leaf lettuce plant spacing 15 cm, fruit 30 cm. Water thoroughly, summer first put in the shade slow seedlings, 1 week or so roots stand firm feet, normal sunlight.

4. Fertilization: apply fertilizer once a week after lettuce seedling transplantation (nitrogen fertilizer is the best), apply organic fertilizer or total nitrogen phosphorus potassium compound fertilizer once after 2 weeks and 4 weeks after transplantation, and stop fertilization 2 weeks before harvest.

5, watering: lettuce planting in high temperature early, late watering, a small amount of frequent watering is better, but avoid waterlogging, early growth suitable for water control, keep moist can.

How to grow lettuce in a pot?

1. Select the appropriate container:

Only good drainage containers are suitable for planting lettuce, lettuce roots are very shallow, do not need too deep pot planting, suitable for relatively wide and shallow containers, the bottom of the pot to have drainage holes, 15 cm deep on the line, usually plastic pots, pottery pots or earthen pots are OK.

lettuce is a kind of vegetable that likes cold environment, maintenance does not require too high temperature, can be planted all the year round, of course, only in warm areas before planting lettuce in winter.

Usually, seeds are used to raise seedlings. The seeds are evenly scattered under 2~3 cm of soil in the basin soil. The soil in the basin is slightly moist. It is necessary to keep it in a bright, ventilated and warm place. It takes about two weeks to take root and germinate.

In summer, lettuce should be planted in a shady place, and the environment should be cool and ventilated to prevent exposure or hot environment. Only a little light in the morning or evening is required.

2. Selection of basin soil

The soil for lettuce maintenance can be the usual garden soil, of course, the best use of humus-rich potting soil, the best is decomposed manure plus garden soil and peat soil, compost soil is also a good choice, to ensure that the soil is fertile and well drained.

3. Pay attention to watering

Summer demand often watering, adhere to the basin soil slightly moist, do not let the basin soil completely dry, basin soil slightly dry hours to sprinkle, but also to prevent basin soil water, water simple formation of root rot.

4. Thin fertilizer and frequent application

Lettuce is a kind of vegetable that grows very fast. In the process of maintenance, it is necessary to ensure that there is enough fertilizer. It can be applied once every 2 to 3 weeks. It can be given a thin uniform fertilizer. Usually, it is a quick-acting liquid fertilizer. Do not apply thick fertilizer.

Other considerations:

Do not plant lettuce plants too closely, leave some distance properly, maintain proper shade, prevent soil from being too dry, especially in the hot afternoon, and give a cool environment.