Immersion seed germination of small watermelon thousand grains weight, seed coat thin, soaking time should not be too long. First scaldle with water at 55°C, keep stirring to room temperature, immerse seeds for 3 to 4 hours, isolate virus infection by soaking seeds in 100-fold solution of new high-fat film for 30 minutes, wipe off moisture, and wrap tightly with a wrung wet towel. Placed in 28 ~ 30 °C environment germination.
One week before sowing, seedling sheds were covered with plastic film, and the soil was filled with nutritious soil. The sowing time is suitable for sunny afternoon, 1 capsule, watermelon seeds laid flat, after sowing, covering 0.5 to 1 cm of nutritive soil, sprayed with a new high-fat film 800 times fluid to maintain moisture, evaporation, sun protection, drought, insulation, antifreeze, anti-soil Shears, suffocates and isolates pests and sources of disease to increase seedlings. Cover the mulch again. When most of the seed is unearthed, the membrane should be removed. After emergence, the temperature should be controlled at 25 °C, night temperature 15 ~ 18 °C, to prevent emergence of tall seedlings. The first true leaf should be warmed up to promote growth. Watering was stopped 5 to 7 days before planting, and the air was blown to cure the seedlings. Late autumn cultivation, the seedling season coincides with the high temperature season, it is necessary to pay attention to shading and cooling and moisturizing. In this period, the seeds sprout quickly, the seedlings grow fast, the seedling age should not be too large, generally 10 days is appropriate.
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