How to choose the blue seeds? What are the methods of raising seedlings?

Turquoise, also known as turnip, eggplant lotus, kale and so on, is a kind of vegetable with mild and humid and high nutritional value, which is grown in many parts of our country. Generally speaking, turquoise is sown with seeds, so how to choose the seeds? What are the methods of raising seedlings? Let's get to know it.

How to choose the blue seeds?

1. Look at the dealer

Whether there is a business license, seed certificate, quality certificate, business license, etc.

2. Look at the packaging

The production date is clearly visible, select the blue seeds close to the factory date. Whether there is an anti-counterfeiting mark, the content is consistent with the seed sold, such as seed category, variety name, place of origin, production date, quality index, quarantine certificate number, seed production and business license number.

3. Look at the seeds

The shape of corn seed is full, the size and shape are basically uniform. The color is dark and shiny. The texture is hard and the epidermis is not easy to break. Feel dry, non-touching, etc.

What are the methods of raising seedlings of turnip seeds?

1. Sowing and raising seedlings

Raise seedlings in the greenhouse, do a good job of cold prevention, first sow on the seedling plate, divide the seedlings after the emergence of azure blue, and cultivate strong seedlings. The seedling bed soil was prepared according to the volume ratio of peat ∶ garden soil ∶ mature organic fertilizer = 6 ∶ 3 ∶ 1. In order to reduce the occurrence of seedling disease, the nutritious soil could be sterilized and disinfected by spraying 1000 times liquid 15% carbendazim water agent.

Soak the seeds in 55 ℃ warm soup for 10 minutes, soak for 4 hours, sow the seeds on the seedling tray, cover the wet fine soil about 0.5cm, and then cover with plastic film. After the seedlings emerged on the 2nd and 3rd day, the plastic film was opened and the moisture was controlled. when the seedlings had 3 true leaves, the seedlings were divided and moved into the 72-hole hole plate. After sowing, the room temperature should be kept at 2325 ℃ and the ground temperature should be kept at about 20 ℃. After emergence, the room temperature is 20: 23 ℃ during the day and 10 ℃ at night. The seedling age of Magnolia lanceolata is generally 30-40 days, and it can be transplanted and planted when 5-7 true leaves.

2. Planting management

Isoprocarb fumigant was used in the greenhouse one day before planting, and the residual smoke was discharged by ventilation the next day, and the planting spacing was 40-50 cm and 30-40 cm respectively. The planting density is 5000 to 5500 plants per 667 square meters, which is reasonable and close planting.

3. Temperature management

In the slow seedling stage, the temperature in the greenhouse is about 30 ℃. After slowing down the seedlings, it is generally 20: 25 ℃ in the daytime and 10 ℃ at night. During the period of bulb expansion, the high temperature should be reduced by more than 30 ℃. Too high temperature will cause cypress blue fleshy fibrosis. The winter temperature in the northern area is relatively low, so we should uncover and cover the quilt and straw felt in time sooner or later, and take good measures of heat preservation and anti-freezing.

4. Water and fertilizer management

Slow seedling water after planting, slow seedling period for about 7 days, if there is no drought, try not to water. Watering the soil at the right time after slowing down the seedlings to keep the soil moist, ploughing and loosening the soil for 1 or 2 times. When the bulb begins to expand, it is mainly watered with small water, watering should be uniform, and flood irrigation must be avoided, otherwise it is easy to appear corm deformity and cracking.

5. Pest control

There are few diseases and occasional insect pests in autumn and winter greenhouse planting in northern cold areas, mainly aphids and cabbage armyworm. Generally, when a small amount occurs in the seedling stage, the leaves with insects can be removed in time. When a large number of insect pests occur in the seedling stage or after planting, smoke fumigation or spraying pyrethroid pesticides should be taken in time.

The blue was introduced into China from west to east through the ancient Silk Road, and it was introduced into China no later than the Yuan Dynasty in the 13th century. Azure is a high nutritional value of health vegetables, deeply loved by people, we can choose to grow according to their own actual situation.

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