First, choose the best species: choose good quality, beautiful appearance, bright skin, sweet taste, melon-shaped varieties.
Second, soaking germination: with 100 °C hot water for 5 seconds, immediately cool the cold water to 40 °C ~ 45 °C warm water stirred for half an hour, then soaked with water for 8 to 12 hours, during which time with 30 °C warm water washing Seeds 2 ~ 3 times, repeated rubbing, remove the surface of the mucus. 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: early spring pumpkin nursery can be carried out in greenhouse or Yangshuo, the appropriate sowing date is generally from late February to early March is appropriate. 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.
4. Seedling management: Keep the temperature between 25°C and 30°C during the day after sowing, and keep it at about 18°C ​​during the night. When 60% of the seed arches, remove the plastic film. During the day, the temperature drops to 20°C to 25°C and 12°C at night. 15 °C to prevent seedlings from growing up. 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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