Summer hot and rainy green onions how to manage

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Early root promotion is the foundation. After the onion is transplanted, if the ground temperature is relatively high, the physiological function of the root system is very weak, and the seedling is slow, so it is not suitable to water more. When it is very dry, you can pour small water. When it rains, pay attention to drainage and flood prevention. After the rain, cultivating and loosening the soil in time to prevent root rot. After the beginning of autumn, the night temperature is significantly reduced, and the number of waterings should be increased to keep the ground moist. It is best to water in the early morning and early evening so as to speed up the growth of the plants.

Cultivate the soil to catch up with high yields. After wilting onions, the green onions should be lightly cultivated, that is, the cultivation ditch can be smoothed out so that it can prevent lodging and prevent water accumulation. Every 15 days after the beginning of autumn, the soil should be cultivated once and cultivated for 3 to 4 times. This is the key measure to increase the length of the onion. When soil temperature is low, soil is used. When the soil temperature is high, soil is not used. It is appropriate to raise the height of the soil so as not to bury the heart and leaves. Fertilizer to grasp two points: First, fertilizer-based nitrogen fertilizer, with phosphorus and potassium. The second is light weight before heavy, that is, the first time after the beginning of autumn fertilizer, urea can be top dressing 10 kg per mu, compound fertilizer 5 to 10 kg; when the weather in early September is cool, 15 kg of fertilizer urea per acre, compound fertilizer 15 kg .

A


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D


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