Do you like to eat leeks? Most people grow leeks, all of which are cultivated in the open field, but now in the winter, the open field can no longer meet the growth conditions of leeks. Therefore, when planting leeks, they are usually planted in greenhouses. Today, I will tell you about the method of planting leeks in greenhouses. Winter greenhouse leeks planting 1, covering the film Construction of a leek greenhouse, pay attention to the outer layer and the inner layer are separated by 15~20cm, a total of three layers of film are required. It is best not to use new polyethylene plastic for the three layers. The outer layer may be selected from a vinyl acetate non-drip film or a polyethylene dust-proof and drip-free composite film. 2, variety Winter greenhouses are planted on amaranth varieties, and it is recommended to use Chinese tyrants, Toyota Evergreen, and Space Century. 3. Cultivation It is the basis for cultivating good root strains, which determines the level of future production and cannot be sloppy. It needs fertilizer and water to make it grow fast. 4. Location of amaranth land The site of the leeks in the greenhouse should be selected and rich in organic sandy sandy loam. Key points for winter management of greenhouse leeks 1, insulation After the shed is sealed, keep 20-25 °C during the day and 5-10 °C during the night. When the plant height is more than 10 cm, keep 16-20 °C during the day, and the temperature in the shed exceeds 24 °C to release air and humidity. When cultivating leeks in small arch sheds in winter, it is necessary to strengthen the heat preservation, and the night temperature is kept above 6 °C. After the temperature drops, the grass cover and paper quilts are covered at night, and the heat preservation performance is enhanced. 2, lighting Amaranth is a light vegetable. Ample sunshine is an important condition to ensure high yield. Therefore, during the growth of leeks, when the sun shines on the roof in the morning, the grass curtain should be uncovered immediately, and the dust in the greenhouse should be cleaned until the afternoon sun. When leaving the shed, cover the straw curtains. Despite the snowy weather, you should also illuminate the curtains as usual. When constructing a leek shed, the main column can be placed on the north side to avoid shadow shading. 3, top dressing During the cultivation of amaranth, it is highly resistant to fertility and can be applied with organic fertilizer. It is best for human waste and chicken manure. Fertilizer can be applied to ammonium sulfate and compound fertilizer. The fertilization method is to apply a hot fermented manure on the noodle, the plant height is 10cm, and the inter-row mu is 40-50 kilograms of ammonium sulfate. After each soil or harvest, the organic fertilizer or fertilizer is chased once, and the water can be poured once. Excrement. 4, irrigation The optimal growth humidity of amaranth is 60%-70%, so the irrigation time can be selected after the shed, or about 10 days before each harvest. After each irrigation, the air should be drained and dehumidified. The straw curtain ensures that the leaves have no dew and then determines if it is watered. 5. Pest control The temperature in the greenhouse is relatively high, and watering in the greenhouse will increase the humidity and easily breed gray mold. Therefore, it is necessary to do a good job in the prevention and control of this disease. After each watering, the Kelicing smoke agent can be used for prevention. Timely removal of debris. Every time the leek is harvested, the diseased leaves should be deeply buried. In mid-February, it is a high incidence of gray mold. We can use Bo Rong or 50% Suo Ke Ling or 50% Fu Hai WP 1000 times spray to prevent and control. The above is about the introduction of leeks in greenhouses in winter. The greenhouse vegetables are used for off-season cultivation. The benefits are much higher than that of open field cultivation. Therefore, in order to obtain greater benefits, growers must do daily management, only to ensure the amaranth. High yield and high quality, then the profit is naturally high. For more exciting pictures and popular comments on winter leeks, click below to view the original ↓ ↓ ↓
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