High-yielding Cucumber Matching Techniques for Wintering Sheds in Winter
First, site preparation: Try to avoid continuous cropping. If it is continuously used as a plot, it is necessary to deep-deep the soil 40cm to switch the topsoil and the subsoil, and apply the decomposed organic fertilizer to not less than 10,000kg per 1/15 hectare.
Second, the appropriate time sowing: in the middle of October sowing, early in the early period of high temperature, seedlings easy to grow long, late seedlings are not cold.
Third, grafting seedlings: First, black seed pumpkin grafted seedlings, resistance to wilt disease and disease, can overcome the hazards of continuous cropping, enhance plant resistance.
1. Plan in advance which kind of grafting method to use, in order to arrange the cucumber and pumpkin sowing time, facilitate grafting, if the use of cucumber cucumber grafted than black seed pumpkin in advance 4 to 5 days sowing; if the plug method black pumpkin Cucumber seeded 2 days in advance. By grafting seeds of pumpkin grafted as close as possible, cucumber thinly sowed, the hypocotyl grafting when 6 ~ 7cm is appropriate. Plug method to cucumber seeding, pumpkin seed sowing, hypocotyl to 4 ~ 5cm is appropriate.
2. Grafting seedling management: pay attention to the principle of high temperature and high humidity. During the day, the temperature of small arch sheds should be kept at 28-30°C and nighttime at 15-18°C. When the bed soil is dry, it should be poured into small water. When the sunlight is strong, grass cover should be covered. After 2 to 3 days, Gradually increase the light, remove the small arch shed about 7 days, and use a bactericide to prevent disease once (chlorothalonil, chlorpromazine can), about 10 days to cut off the grafted seedlings.
Fourth, ridging the film colonization: planting in mid-late November, select a few days of sunny time, the morning of planting (usually continuous sunny days after sunny days). The land will be formed into a north-south to small-high ridge with a ridge spacing of 1.2m and a ridge height of 20cm. Each ridge will be planted in 2 rows with a plant spacing of 25-27cm. The seedlings with big larvae will be moved into the open nest and then watered, and then the water will be infiltrated. , Open hole to dig seedlings.
Fifth, irrigation and fertilization: The best use of drip irrigation fertilization, its advantages are water, fertilizer, reducing air humidity inside the shed to reduce crop diseases. The frequency of fertilization at the seedling stage is small and the water consumption is also low. Generally, irrigation is performed 2 to 3 times, and 4 to 5 cubic meters of water per 667 square meters are used. When the base fertilizer is sufficient, no fertilizer is applied, and when the base fertilizer is insufficient, 2 to 3 kg per (667 square meters) are exuberant. During the growing period and harvesting period, irrigation is performed once a week, 8 to 10 cubic meters each time, and 4 to 5 kg of fertilizer is applied. Fertilizers should be fertilized according to N, P, K, and trace elements.
VI. Prevention of Ventilation: In the morning, the air is released for 1 hour to remove moisture, then the greenhouse is closed to 30-32°C; in the afternoon, the humidity in the air is reduced to 66-70% and the temperature is reduced to 20-25°C. The two most common diseases of cucumber are downy mildew and powdery mildew. During the entire growth period, it is best to use a bactericide to prevent disease once a week. Do not treat the disease before it is cured. In addition to using a variety of fungicides, there are two ways to treat:
1. High-temperature stuffy shed cure downy mildew: If the soil is dry, should be watered the previous day, hang the thermometer in a parallel position with the cucumber tap, to make the faucet down, to prevent burns growth point, close the vent on sunny morning Let the temperature of the cucumber tap rise to 45 °C, and then slowly cool down after 2 hours of maintenance, the temperature should not be lower than 42 °C, nor should it be higher than 45 °C.
2. Sulfur fumigation and anti-white powder: According to the measurement per cubic meter, sulfur 6~8g, sawdust 10~12g, ignited in a confined greenhouse (no open flame), fumigation overnight, can also be fumigation with male sulphate, need 6 per cubic meter ~ 7g, sawdust 10g, placed in the tile cylinder, and then into the red coal balls, smoking fumigation, fumigation every 7 to 10 days.
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