Pumpkin has the characteristics of cold resistance and low temperature resistance. It can make use of cold sheds in the early spring to raise the morning market, fill the market gap, and obtain higher economic benefits. Below, introduce the main points of the seedling technology of early spring squash, for reference of friends of guanon.
First, choose the best species. Early spring cold shed cultivation, should choose a good precocity, root development, growing strong, resistant to low temperature, color orange red, thick round fruit, good Dongsheng varieties of goods.
Second, soaking germination. Fight with 100°C hot water for 5 seconds, immediately cool against cold water to 30°C, stir for half an hour, then soak in fresh water for 8-12 hours, during which the seeds are panned 2-3 times with warm water at 30°C to remove mucus from the surface of the seeds. After the seeds were removed, they were allowed to dry for 2 hours until the surface of the seeds was dry and germinated. When germination temperature is maintained at 28-30 °C, 2-3 days later, when the bud length 0.2-0.5 cm, the seed radicles exposed, commonly known as dew, can be sown, the general amount of 200 grams per mu.
Third, timely sowing. In the south-central part of our province, early spring pumpkin seedlings are carried out in greenhouse or Yangshuo, and suitable sowing dates are generally from late February to early March. Seedlings are commonly used to raise seedlings, and before disassembly, 2 kg of 40% carbendazim powder per cubic meter of nursery medium is disinfected. Spray the nursery medium with fresh water so that the moisture content reaches 70%. When the nursery medium is loaded, a 2 cm 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.
Fourth, seedling management. After sowing, the temperature is maintained at 25-30°C during the day and 18°C ​​at night. When 60% of the seed is arched, the film is removed and the temperature is reduced to 20-25°C during the day and 12-15°C during the night to prevent the shoots from growing. When the leaves are 2 centimeters long, the daytime temperature is 25-28°C and 15°C at night. Spray fresh water every 5 days during nursery. When the seedlings have 2 leaves and 1 heart, the seedlings are subjected to low-temperature hardening, and then the seedling medium is selected to be planted in a sunny weather.
Heel Stickers,Heel Stickers For Shoes,Foot Heel Sticker,Shoe Heel Stickers
Henan Maidingkang Medical Technology Co.,Ltd , https://www.mdkmedicales.com