First, the shed structure. The span of the greenhouse is preferably 6-8 meters. The shed film is buckled in the first half of November. The shed has a 1.5-meter small arch shed covering a 3-meter wide shed film. The small arch shed is covered with a thick grass raft at night. Covering a layer of old shed film, the insulation performance is greatly enhanced, and the cucumber can be planted in the shed after the nursery.
Second, the preparation of nutrient soil. Take 60% of the fertile soil that has not been planted with Cucurbitaceae crops, and 40% of the decomposed organic fertilizer. Add 1 kg of decomposed and fine chicken manure per cubic meter, 3 kg of superphosphate, 2 kg of urea, 1-1.5 kg of potassium sulfate, and 50 g of carbendazim in each cubic soil. .
Third, sowing
1. Selection: Select varieties with strong disease resistance, strong resistance, good commercial traits and high yield. In the winter and spring greenhouse cultivation, you can use Jinchun No. 3, Jinyou No. 3, Leiyu Platinum, and spring dew can be used to cultivate Laoting, melon, jade and Tangshan.
2, seed treatment: soak the seeds with warm water at 55 ° C for 10-15 minutes, and continue to stir until the water temperature drops to room temperature, then soak seeds for 3-4 hours, then wash the seeds repeatedly, rinse the mucus with water, then dry and germination, It can prevent scab, anthrax, viral diseases and sclerotinia. After soaking for 50 hours with 50% carbendazim 500 times, remove the germination and germination, and prevent blight and black spot disease. The treated seeds are wrapped in a damp cloth and germinated for 1-2 days at 25-30 ° C. When the seeds are "white tip", they are germinated for 1-2 days at 0-20 ° C.
3. Sowing: Seeding when most seeds are germinated. The solar greenhouse is in the middle of the winter and the first half of January, and the winter is in the late September to early October. The open field spring is in mid-March to early April, and the autumn is planted in late June to early July. One day before sowing, the soil of the seedbed was first immersed. Before planting, sprinkle a layer of fine tidal soil on the bed surface, and then add a little fine sand so that it can be evenly distributed. The seeding amount per acre is between 140-160 grams. After the broadcast, the bed surface covered with 1 cm thick methyl thiophanate soil, and then covered with a mulch film to keep warm and moisturize.
Fourth, seedbed management
1. Seedling management: After the sowing, the small arch shed film will be buckled during the day. Cover it with thick grass and old shed film at night. (Appropriate early cover and late release), the natural temperature of the greenhouse during this period is up to 25-30 °C, which is more suitable and does not require ventilation. After the emergence of the seedlings, the mulch film is removed, and the old shed film and grass hoe are removed after the sunrise, and the small arch shed film is uncovered later to enhance the light. At 4 o'clock in the afternoon, cover the small arch shed and the grass raft and the old shed film. In order to prevent the length of the seedlings, the temperature should be kept slightly lower after the emergence, the daytime control is about 20 °C, 8-15 °C at night, and the temperature is slightly lowered 3-5 days before the seedlings, so that the leaves of the seedlings are thick, the leaves are dark green, and the roots are developed. After the seedlings, the seedlings are quick. When the seedlings grow to 2 true leaves, the seedlings are timely divided, and the seedlings are inconvenient to operate early. When the seedlings are late, the roots easily affect the survival rate of the seedlings. The seedling bed was wetted one day before the seedlings, and the next day, the seedlings were planted into the nutrient mortar, and the methyl thiophanate syrup was poured to prevent the disease at the seedling stage.
2, after seedling management: after seedlings to prevent seedlings wilting, during the day need to buckle the small arch shed to cover the shade, after the slow seedlings, open the shed film during the day, cover the small shed film and grass rafts and old shed film at night, this When the daytime temperature is maintained at 28 °C, 10-18 °C at night, the minimum is not lower than 8 °C, found that the bauxite is dry, choose sunny days and timely water, the seedling age 40-45 days, three leaves and one heart can be planted.
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