Overwintering eggplant seedling raising technology in greenhouses

Variety selection: choose low-temperature, low light, good quality, good color suitable for cultivation under the polyvinyl chloride film under the greenhouse, such as the United States cited tomato crown. The variety is brightly colored, long purple and green, and can grow normally under low temperature and low light conditions, with high yield and good coloring.

Seed treatment, drying seeds: time is 1-2 days. It is necessary to dry seeds on the land. Remember not to dry seeds on the cement floor. The purpose of drying seeds is to promote seed ripening, increase seed germination potential and germination rate, and kill the germs on the seed surface.

Soaking in warm water: Put the seeds into warm water of 55°C three times, and keep stirring for 15 minutes. When the temperature drops to about 35°C, soak for 8-9 hours, remove and dry, and prepare for sowing.

Seeding and seedbed refurbishment: The bed soil should be selected from a field soil that has not been planted with solanaceous fruit. After screening, the seedbed is 1.2 meters wide, 5-6 meters long, and 10 cm thick. One kilogram of potassium dihydrogen phosphate was added to the soil of each seedbed and mixed well. It requires the virtual reality of the seedbeds, the formation of no waste, and the bed soil all sifted. After the water is poured, the ground temperature is lowered to facilitate the seed germination. Pharmaceutical treatment: There are 50% carbendazim WP and 50% DT bactericide on the bed. Prepare 10 grams per square meter of medication and mix it with 5 kg of dry fine soil. Seeding: Seeds soaked and dried are sprinkled evenly on the seedbed. Spread 1/3 of the medicine soil on the seedbed and sprinkle the seeds before spreading. After the seeds have been sprinkled, cover the remaining 2/3 of the drug earth on the seeds, cover the 1-1.2 cm thick screened fine soil, and then cover the mulch. Post-broadcasting management: Keep the weather at 25°C-30°C during the day and 16°C-20°C during the night. When the temperature is high, shading is required. The old agricultural film can be covered on the bamboo arch, but it can only cover the top and be surrounded by light and air. Good use of shade net, both shade and pest control, the effect is good.

Seedling management, wheat bran trapping: When 70% of the seeds are exposed, the mulch must be removed. Before two true leaves, be careful to prevent insect biting seedlings. Phoxim and wheat bran can be used to mix baits and piled on seedbeds to trap and kill adult worms. Sub-seedling: 40 days after sowing, 2-3 true leaves of eggplant seedlings were divided into 1010 cm. After sub-seedling, keep the temperature at 28°C-30°C and nighttime at 18°C-20°C to promote seedling growth and growth. Watering and spraying before planting: 5-7 days before planting, the seedbeds were poured once with water, and the mixture of 50% DT fungicide 600 times and 65% chlorothalonil 600 times was sprayed on the leaves to prevent seedlings from becoming sick.

Strong seedlings standard: seedling height 15-18 cm, 6-9 true leaves, 80-90 days seedling age, roots developed, milky white, big buds on the upper part.

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