First, the stock culture
1, scaffolding. In the early spring, the weather is changeable and the middle shed can effectively regulate the temperature and humidity. Use a bamboo strip to take a scaffold that is 5 meters wide and about 2 meters high at the top of the arc. Put on 8 to 8 meters wide light-transmitting agricultural film to increase the temperature of the greenhouse 7-8 days before planting. The vertical section of the shed starts at 3 cars and each car is 1.3 meters wide.
2, nutrition soil preparation. Use rice field and fire soil in the former half and half, add 2 kg of compound fertilizer (15% for N, P, K) per hectare, mix and sieve after bagging of superphosphate (1.5 kg), and bag (the nutrition bag size can be used Cm, height 8 cm). Neatly placed on the surface of the box, sprayed the soil bag with 40% formalin 1000 times, and the film was suffocated for 3 days and the film was removed to remove the smell.
3, sowing. From the end of February to the beginning of March, sowing can be done, and a generation of hybrid four-season pods with good resistance and good symbiosis is selected as the rootstock seedlings. Seed drying for 3 hours before sowing, soaking for 24 hours, draining and placing in the environment of 28-32°C. Seed “whitening†(usually after 24 hours) sowing seeds, soaking nutritive soil before sowing, first using branches when sowing One hole is drilled, and the seed is placed flat in the hole and compacted. Finally, the cover is sealed and kept warm.
4, water and fertilizer management. After emergence, the bag soil will keep dry and see wet state. The high temperature in sunny days should be ventilated and cooled in time. Keep the temperature in the shed within 25-28°C during the day and 14-15°C during the night to avoid the occurrence of “tall shootsâ€.
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