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1. Seed selection
When planting, you must first select suitable seeds for planting. Generally, you must choose the seeds of the year to increase the germination rate of sowing. If you choose aged seeds, the life span of the seeds is limited, and the vigor of aged seeds is low. The longer the storage period, the lower the germination rate. It is difficult to germinate after planting, causing losses to farmers.
2. Sowing time
The sowing time is extremely critical. It is related to the yield and quality of onions. Therefore, we must pay attention to the sowing time. Although onions can be planted throughout the year, they will enter a dormant state and stop growing at high temperatures above 30 degrees. Therefore, it is recommended to choose a temperature between 20-30 degrees. After sowing, the onion will grow at a very fast speed, which can improve the yield and quality.
3. Soaking seeds to promote seedlings
In order to increase the germination rate of seeds, it is necessary to accelerate germination before sowing, which can not only increase the germination rate of seeds, but also make the seedlings grow neatly. First, soak the seeds in warm water of about 50 degrees for 4 hours, make them fully absorb water, scrub the waxy layer on the surface, and dry them for seeding.
4. Seeding method
The soil for planting onions must be fertile, loose, and well-permeable soil, and garden soil can also be mixed with decomposed farm manure to make the required fertile and well-permeable soil. Pour the soil thoroughly, sprinkle a layer of fine soil, and sow the seeds on the soil. Cover the plastic film after sowing, and control the temperature at about 20 degrees. The seeds will germinate in about a week, so we must manage the seedling period, and time the seedlings and supplement the seedlings to promote the growth of the seedlings.