First, choose the best species
Choose a variety of good quality, beautiful appearance, bright skin color, sweet taste, and melon shape. Such as the new Dongsheng, Victoria, ruby, red millet and other red varieties.
Second, soaking seeds and germination
Hot-bake with 100 °C hot water for 5 seconds, immediately cool the cold water to 40 ° C ~ 45 ° C warm water for half an hour, then soak seeds with water for 8 to 12 hours, during which the seeds are washed with 30 ° C warm water 2 to 3 times, repeated Hey, remove the mucus from the surface of the seed. After the seeds are removed, they are allowed to air dry for two hours, and the seeds are dried and then germinated. The temperature of the germination is maintained at a temperature of 28 ° C to 30 ° C. After 2 to 3 days, when the bud length is 0.2 to 0.5 cm, the seed radicle is exposed, commonly known as white, and can be sown, and the general amount of the seed is about 200 grams.
Third, timely sowing
In North China, early spring pumpkin seedlings can be carried out in solar greenhouses or in Yangshuo. Suitable sowing dates are generally from late February to early March. Common seedling tray seedlings, before loading, each cubic meter of seedling substrate mixed with 40% carbendazim powder 2 kg disinfection. The seedling substrate was sprayed with water to a water content of 70%. When the seedling substrate is loaded, the cup mouth is reserved for a depth of 2 cm. Each seedling cup was sown with 1 germinated seed, covered with 2 cm thick puffed vermiculite, and then covered with a plastic film.
Fourth, seedling management
After sowing, the temperature during the daytime is maintained at 25 °C ~ 30 °C, and at night is maintained at about 18 °C. When 60% of the seeds are arched, the mulch film is removed, and the daytime temperature drops to 20 °C ~ 25 °C, nighttime 12 °C ~ 15 °C, to prevent seedlings. excessive growth. When the heart leaf is 2 cm long, the daytime temperature is maintained at 25 °C ~ 28 °C, and at night 15 °C. Spray water every 5 days during the nursery period. In the week before colonization, the amount of air release is gradually increased to carry out the refining, and the survival rate is increased. When the two leaves of the seedling are one heart, the seedling substrate is colonized.
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