Onions want high yield, and seedling technology is the key!

Onions are widely distributed in China and cultivated in all parts of the country. It is the most commonly used seasoning vegetable in our daily life. It is loved by many people. The cultivation of onions is very simple, but it is the most important to grow onions. Seedling transplanting can increase the growth ability of onion seedlings, increase yield and improve quality. So what are the main points of onion seedling technology?

1, choose the best species

Before raising seedlings, we must first choose an excellent onion variety. An excellent variety will directly affect the growth and yield of the onion.

Therefore, the choice of variety is very important. We should pay attention to the selection of varieties with strong growth, high yield and strong disease resistance when planting. The most important varieties on the market today are purple onion varieties such as purple jade and new red stars. The onion yield of these varieties is very high. Under normal planting management, the output can reach 5,000 kg/mu, and the output will be higher for some high-quality plots.

2, seedbed preparation

Before the seedlings are prepared, the seedbed should be prepared. The soil of the seedbed should ensure sufficient fertility, deep and soft, water and fertility, and no crops of the same family have been planted for at least two years.

Control the area of ​​the nursery bed, and then deepen the depth of the soil. The depth of the deep turn is controlled at 25-30 cm. After deep turning, the bottom fertilizer is applied. The base fertilizer is mainly composed of decomposed farmyard manure and compound fertilizer. Mixing the fertilizer with the soil can increase the utilization of the fertilizer. Finally, do the watering, then you can wait for the seeding.

3, timely seeding

The timing of sowing is closely related to the growth of seedlings, which directly affects the yield and quality of onions. If the planting is too early, the seedling growth period will be prolonged, resulting in excessive consumption of nutrients. If the absorption is too much, the seedlings are prone to convulsions. If the resistance of seedlings is too late, the cold resistance is insufficient, and the phenomenon of freezing and killing seedlings is likely to occur during wintering.

Therefore, attention should be paid to the sowing time when planting. The specific sowing time is determined by various factors such as planting area, variety and weather changes.

4, seedling management

Cover the straw after sowing, improve the soil's ability to maintain insulation, properly prevent rain, and then the seedlings must keep the soil moist before breaking the soil. When about 65% of the seedlings are unearthed, the straw can be uncovered, and then water is appropriately watered according to the change of the weather to prevent soil compaction and affect the growth of the seedlings.

Must be a reasonable topdressing, you can cultivate seedlings by managing water and fertilizer. When managing seedlings, care should be taken to prevent excessive growth of seedlings, leading to early convulsions, and prevention of seedlings being too weak and reducing seedling resistance. Then when the seedlings grow about 4 pieces of true leaves and the plants are about 22 cm, they can be planted.

The above is the main point of seedling technology of onion. Onion planting should try to avoid the use of open field live broadcast method. Mastering the above seedling technology can enhance the growth ability of onion seedlings, thereby increasing the yield and quality of onion and expanding the economic benefits of farmer planting. .

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