Spring sowing and Seedling raising techniques of Western Pumpkin

1. Prepare seedling bowl (specification: 10 cm × 10 cm × 8 cm) and nutritious soil (50% mature organic fertilizer, 50% field sandy loam, mix well) before sowing. Before sowing, the seeds should be treated, the shrunken seeds and deformed seeds should be removed, the full seeds should be selected, and the seeds should be dried for 1 or 2 days in sunny days to enhance the vitality of the seeds. After drying the seeds, put the seeds in 55 ℃ water, blanch the seeds for 10 minutes, keep stirring until the water temperature drops to 30 ℃, soak the seeds for 5 hours, scrub the mucus, wrap them with a wet cloth after washing, put them under the temperature of 25 minutes and 30 ℃, accelerate germination after 36 minutes. When the bud is about 3 mm long, it can be sown. 2. Sow the germinated seeds flat in a seedling bowl filled with nutritious soil and watered with water, pay attention to the bud downward, 1 grain per bowl, and then cover with sifted fine soil about 1 cm thick. Cover with plastic film after sowing, pay attention to cover strictly, cover grass curtain at night to keep warm, and keep the temperature at about 25 ℃ to facilitate rapid emergence of seedlings. 3. The seedling age of western pumpkin in seedling stage is generally 40-45 days. Just after sowing, it is necessary to strengthen heat preservation and moisturizing, seal the seedling bed, and cool down the cotyledon arch soil in time to prevent the seedlings from overgrowing. Keep it about 22 ℃ during the day and 12 ℃ at night. After most seedlings are unearthed, fine soil 1 cm thick can be added to maintain humidity. During the seedling period, sunny days, appropriate ventilation, cloudy days, less air, pay attention to control humidity, do not humidity too much. Strong seedling standard: 3 leaves and 1 heart, plant height 10-15 cm, dark green leaves, stout stems, well-developed roots, no diseases and insect pests.