Choose the best. Choose new seeds with fast growth rate, strong lodging resistance, long white onion, short growth period, difficult to fork, and good commercial properties, such as: Zhangqiu big paulownia, Chinese giant onion and Hebei scallions. Modern Style Cabinet Door,Ultramatt Doors And Panels,Acrylic Doors And Panels,Ultramatt Finish Cabinet PRO CABINET SOLUTION PTY LTD , https://www.pcscabinet.com.au
Spring green onion breeding seedlings
Choose fertilization. The nursery field should choose loam or sandy loam with deep soil, fertile soil, convenient pouring, loose soil, and no plots of liliaceae vegetables such as onions, garlic and leeks. Combine with the land preparation, apply 5000 kg of high-quality farmyard manure, 30 kg of compound fertilizer, intensive cultivation and fine soil, and fully mix the soil and fertilizer to make a raft of 1~1.5 m wide and 10 m long to facilitate field management.
Sowing at the right time. Scallion spring sowing seedlings, from planting to planting time is short, so early sowing is essential, planted in the middle and late March. The sowing amount is generally 2.5~3.0 kg, and an acre seedling can be planted 6~8 mu. The seeding method is adopted, and the seedlings are firstly planted before the sowing. After the water is infiltrated, the seeds are evenly mixed with the appropriate amount of grass ash or fine dry soil, and repeatedly spread several times to facilitate the uniform distribution of the seeds, and then cover the fine soil of 0.5 cm thick; You can also sprinkle the seeds first, and shovel the shovel several times, and then pour the water with your feet. Both methods are covered with a mulch film at the end, which can not only warm and moisturize, but also emerge early, usually 6 to 7 days after sowing, and 1 to 2 days earlier than the open field.
Field management. When the onion is halfway out, remove the mulch to avoid burns. After Qi Miao, I found that the onion seedlings were denser and the morning seedlings ensured that each seedling had the same nutrient area. During the growth period, adopt the management method of “promoting the mainâ€, small water and watering, less fertilizer and more application, keeping the soil moist and ensuring nutrient supply. As the temperature rises, the onion seedlings gradually grow up, the demand for fertilizer and water increases, and the amount of watering and topdressing should also increase accordingly. Generally, watering is 30~40 square/mu each time, and urea is applied 5 kg. During the nursery period, attention should be paid to the control of weeds, which can be removed manually or by herbicides. At the same time, attention should be paid to the prevention and control of mantle, reducing the rate of weak seedlings, ensuring that the growth of the onion seedlings is uniform and the individual is strong.
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