First, choose the best species
Select good quality, beautiful appearance, bright skin, sweet taste, melon-shaped varieties. Such as new Dongsheng, Victoria, ruby, red millet and other red varieties.
Second, soaking germination
Use hot water at 100°C for 5 seconds, immediately cool the cool water to 40°C to 45°C in warm water for half an hour, then soak in fresh water for 8 to 12 hours. Wash the seeds with warm water at 30°C for 2 to 3 times. Rub and remove the mucus from the surface of the seed. After the seeds are removed, they are allowed to dry for two hours until the surface of the seeds is dry and germinate. The germination temperature 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 radicles are exposed, commonly known as dew-white, and can be sown. Generally, the amount per mu is about 200 g.
Third, timely sowing
In North China, early spring pumpkin nursery can be carried out in the greenhouse or in Yangshuo. Suitable sowing dates are generally from late February to early March. Seedlings are commonly used to raise seedlings, and 2kg of 40% carbendazim powder per cubic meter of seedling substrate is disinfected prior to loading. The seedling substrate was sprayed with fresh water so that the moisture content reached 70%. When the nursery substrate is loaded, a 2 cm deep space is reserved for the cup. Each seedling cup was sown with one seed of germinated seeds, covered with 2 cm thick expanded vermiculite, and then covered with a mulch.
IV. Seedling management
After sowing, the temperature is kept between 25°C and 30°C during the day and 18°C ​​during the night. When 60% of the seeds are eroded, the film is removed. During the day, the temperature drops to 20°C to 25°C and nighttime to 12°C to 15°C to prevent seedlings. excessive growth. When the heart is 2 centimeters long, the daytime temperature is maintained at 25°C to 28°C and 15°C at night. Spray water every 5 days during the nursery period. One week before colonization, the air volume was gradually increased to carry out the hardening seedlings to increase the survival rate. When the two seedlings were at one heart, the seedlings were planted in the matrix.
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