Breeding Overwintering Onion Seedlings

Variety selection is the key Currently onion varieties promoted on the market are many. The better performances are selected by Henan Agricultural University, such as the Moyu giant green onions and Jinfu green onions.

Timely sowing and seedlings Scallions in our province are sown well after the autumnal equinox, but also due to the weather conditions of the year, the warm winter season should be properly sowed late, and the cold regions can be properly sown early so that the seedlings have a 40- to 50-day development period before winter. Can have 2 to 3 true leaves, plant height is about 10 cm, stem diameter below 0.4 cm (more than 0.5 cm thick stems, pods in the following year can easily flowering), this can safely overwintering can avoid or reduce the leap year of pre-convulsions. Before seeding, seeds should be soaked and disinfected. The seeds should be soaked in clean water, and the seeds should be removed. The seeds should be soaked in warm water at about 55°C for 20-30 minutes. Sowing methods and drills are sown. When planting, the foot water should be poured first. After uniform sowing, the cover soil should be 0.5-1.0 cm thick. During the seeding, shallow grooves of 1.5 to 2 cm depth were placed within 15 cm of the row within the sowing pots. Seeds were evenly sown in the ditch. Before the emergence of the soil to keep the soil moist and soft, such as surface cracking or compaction, sowing 3 days after sowing small water, in order to help seedlings unearthed. After pouring out of the seedlings, a small amount of water is poured to make the seedlings grow robustly. At the same time, we must dig the grass frequently. This is the core of the management work to cultivate the age-appropriate seedlings. It is necessary to prevent the seedlings from being too large and to avoid the seedlings being too weak. For seedlings that grow too fast or in the case of warm winters, the growth of seedlings should be properly controlled through water and fertilizer management to prevent overgrowth of seedlings before winter, which is an important measure to prevent the intensive scalloping of welsh onions. For the growth of thin seedlings, appropriate amount of top-dressing watering, so that weak seedlings become stronger. Before the winter, sprinkle plant ash or hay dung to help the green onions safely pass winter. In the spring of the next year, when you return to green, you will loosen your face, pour the green water, and top up the fertilizer. Then cultivator, thinning, weeding. Seedling height 30 to 50 cm, 8 to 9 leaves, should stop watering, hardening seedlings, ready to transplant.