How should you water Welsh onions (bunching onions) correctly in the late growth stage?
How do you water Welsh onions in the late stage of cultivation? Here is an introduction. In early autumn the weather turns cooler and the onions begin vigorous growth, but the temperature is still relatively high, so the plants grow rather slowly. Their water requirements are not high, so water sparingly. Watering should be done in the morning and in the evening; avoid watering at noon, which suddenly lowers the soil temperature and affects root growth. In late August, ...
How do you water Welsh onions in the late stage of cultivation? Here is an introduction.
In early autumn the weather turns cooler and the onions begin vigorous growth, but the temperature is still relatively high, so the plants grow rather slowly. Their water requirements are not high, so water sparingly. Watering should be done in the morning and in the evening; avoid watering at noon, which suddenly lowers the soil temperature and affects root growth. In late August, when the average temperature in North China is below 24°C, Welsh onions enter their peak growth period and can grow 1 leaf on average every 7 to 8 days; the higher the leaf order, the larger the leaf, and the longer each leaf lives. During this period, water and fertilizer management should be strengthened; once vigorous growth is affected by a lack of water and fertilizer, the yield will be seriously reduced. Generally, water once every 4 to 5 days, with a large amount of water, and the water should seep evenly through the furrow. For high-yield plots, 7 to 8 waterings are needed by the time of frost to keep the ground moist. After frost, the temperature drops, the Welsh onions have basically finished growing, and they enter the pseudostem filling stage; the plants grow slowly and need less water, but the soil should still be kept moist so that the pseudostem fills out, the leaves become thick and fleshy and full of gel, and the white stalk is fresh, tender and plump. During this period, 1 to 2 more waterings are still needed; if there is a shortage of water and drought, the leaves will wither and soften, the white stalk will be loose, the yield will drop and the quality will deteriorate. Stop watering 7 to 10 days before harvest to make harvesting, storage and transport easier.
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