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In the autumn, the winter storage onions enter the management stage of the soil. The soil has the function of preventing lodging, softening the pseudo stem, and improving the yield and quality of the onion. The higher the soil, the longer the scallion and the whiter and more white. The height of the short white cultivar is generally about 20 cm, and the height of the white cultivar is 30 to 40 cm. Planters should pay attention to the following matters when planting green onions:
1. Do not widen the width of the soil, and do not be too deep to avoid root damage. 2. The soil should be photographed to prevent rain or water from falling. 3. If the soil is too dry and too moist, it is not suitable for soil cultivation. The soil should be carried out when the leaves are soft in the afternoon. It is forbidden to damage the leaves when the soil is crisp in the morning. 3. It is not allowed to cultivate soil during the hot season, and the number of soils should not be too much. Generally, the soil is cultivated 3 to 5 times. 4. Do not spread the soil too deep, and soil the soil to the boundary between the sheath and the leaf body, that is, only the leaf sheath is buried, and the leaves are not buried. On the soil between the rows of green onions, spray the soil conditioner without deep ploughing. 200 grams per acre, add 100 kilograms of water, try not to spray on the leaves. About 20 days, the soil 50 cm deep is loose and transparent. This not only develops the root system well, is conducive to high yield, but also facilitates soil work.
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