[Lettuce planting] Lettuce seeds Low -temperature germination method of lettuce cultivation method

[Lettuce planting] Lettuce seeds Low -temperature germination method of lettuce cultivation method

The method of picking the lettuce seeds

The lettuce is planted by the spring lettuce of the winter lettuce, and the varieties of planting plant are separated 1000 About meters.Select plants with strong growth and strong characteristics of this variety. 33 See the Square above centimeters, remove the old leaves, add Fertilizer water, cultivate soil, and promote the growth of the side branches.

When blooming, some branches are properly removed, the pillars are inserted to prevent falling, and the flowering period cannot be dehydrated. 20-25 God, the leaves of the planting plant are yellow normally, the seeds are brown or silver -gray, and the white crowns are harvested in time.

How to deal with lettuce seeds

autumn lettuce is generally 7 Monthly 8 Sowing at the beginning of the month, this is the high temperature and hot season, and the seeds are not easy to germinate.Measures such as low temperature treatment, hormone soaking, red light irradiation, etc. in production are often used to promote germination.

1 , Low temperature treatment is the most commonly used method, that is, soak the seeds first 12--24 In hour, put the seeds in a cool place such as caves, wells, or directly placed in the refrigerator, and keep 25 Below and humid conditions, scriptures 3-4 After the heavens, wait 80% seeds can be sowed when germination.

2 , Use hormone soaking, then 100 Milligram / / The hormone soaked in the seeds 3 In minutes, sowing after rinse can greatly improve the germination rate of lettuce seeds under high temperature conditions.use 0.1% Sulfur treatment can also promote germination.

3 Use red light to shoot lettuce seeds, which can also promote germination at high temperatures, but infrared rays can inhibit germination.

The method of low temperature germination of lettuce seeds is as follows:

First, soak.Soak the seeds with water before germination 7 8 In the hour, the buds are neatly sprouting.

Second, the refrigerator is low -temperature germination.Put the seeds soaked in water in the refrigerator refrigerator and adjust the temperature to 4 , refrigerate 72 In hour, then take out the seeds and put them in the shade and humidity.

Third, the Hanging well is low -temperature germination.You can also put the seeds soaked in water in the cloth bag and hang it into the well. The seeds leave the water surface. 10 Centimeter, time 7 Around the sky, wait for the seeds 80 Take out the sowing when % dew.

The sowing time of lettuce seeds

1 , spring lettuce: 12 Monthly 3 Moon green shed, 2 To mid -month 3 In the end of the month, open -field seedlings.

2 summer lettuce: 4 Monthly 5 In the middle of the month, open -field cultivation, 5 Arrived in the end of the month 7 Monthly uses a shade net to be planted live or high -density.

3 autumn lettuce: 7 Monthly 9 Monthly uses the Shading net to cover the sowing and transplant seedlings.

4 , winter lettuce: 10 Monthly 11 Moon exposed seedlings.

Lettuce planting method

1 Following ground fertilization

The roots of lettuce are shallow and the absorption capacity is weak. Therefore, it is better to choose a loose sandy soil for the soil. Choose a high -level, well -drained and dry plot. Apply the bottom Fertilizer before sowing.Crack, then flat, cover a layer of coverage to prepare for planting.

2 ,sowing

In order to ensure the Smooth germination of the seeds, the seeds need to be treated before sowing, soak the seeds in water 6 At about hours, then wrap it with a wet towel to start germination.After germination, sowing can be sowed. The seeds of lettuce are relatively small, so stir the environmental soil during sowing and sprinkle it after sowing. 2-3 Gich, cover a layer of shallow soil after sowing.After sowing, cover a layer of film, heat thermal insulation and speed up, and observe carefully. When the seedlings are unearthed, immediately open the film to keep ventilation and light. 3 You can be planted when the left and right true leaves.

3 Plant management

To ensure that it grows rapidly and strong when planting, it should be kept distance and row spacing 25cm 30cm , Timely watering to promote the development of the root system, and keep the soil moist. If the planting is a high temperature period in summer, proper Shading should be appropriate to prevent the seedlings from being harmed.There is no need to fertilize after applying foot Fertilizer. It can be applied to the farmhouse with light Fertilizer once or twice when combined with medium or weeding. It is also necessary to pay attention to the shallow roots when China cultivation. Its root system is not developed.Root system.