Four key points of raising Pumpkin Seedling in early Spring by using Cold shed

Pumpkin has the characteristics of cold tolerance and low temperature tolerance. It can be listed early in early spring by using cold shed to fill the market gap and obtain higher economic benefits. Below, introduce the seedling technology points of early spring pumpkin, for melon farmer friend reference.

1. Select superior species. In early spring cold shed cultivation, Dongsheng varieties with good early maturity, developed root system, strong growth, low temperature tolerance, orange-red color, thick oblate fruit and good commodity quality should be selected.

2. Seed soaking and germination. Blanch seeds with 100℃ hot water for 5 seconds, immediately add cold water to cool to 30℃ and stir for half an hour, then soak seeds with clean water for 8~12 hours, during which wash seeds with 30℃ warm water for 2~3 times to remove mucus on seed surface. After the seeds are taken out, air them for 2 hours, and germinate after the surface of the seeds is dry. When germination temperature is maintained at 28~30℃, 2~3 days later, when the bud is 0.2~0.5 cm long, the seed radicle is exposed, commonly known as white, can be sown, the general amount of seed per mu is about 200 grams.

3. Timely sowing. In the central and southern areas of our province, early spring pumpkin seedlings in solar greenhouse or sunny bed, the appropriate sowing time is generally late February to early March is appropriate. Common seedling tray seedling, before loading, each cubic meter of seedling medium mixed with 40% carbendazim powder 2 kg disinfection. Spray seedling medium with clean water to make its water content reach 70%. When the seedling medium is loaded, a space of 2 cm is reserved at the mouth of the cup. Sow 1 germinated seed per cup, cover with 2 cm thick expanded vermiculite, and then cover the tray with plastic film.

4. Seedling management. After sowing, the temperature is maintained at 25~30℃ during the day and 18℃ at night. When 60% of seeds arch soil, remove the plastic film, the temperature drops to 20~25℃ during the day and 12~15℃ at night to prevent excessive growth of seedlings. When the heart leaves are 2 cm long, the temperature is kept at 25~28℃ during the day and about 15℃ at night. Spray clean water once every 5 days during seedling period. When the seedlings have 2 leaves and 1 heart, the seedlings are tempered at low temperature, and then the seedlings are planted in sunny weather with seedling medium.