The winter and spring sweet peppers in the greenhouse are usually planted in the middle to late October and early November. The technical points for raising seedlings are as follows:
1. Soak germination. Put the seeds into warm water of 55°C, keep stirring, reduce the water temperature to 30°C within 10 minutes, remove and soak for 10 minutes with 0.1% potassium permanganate solution, then wash with clean water and soak for 4 to 5 hours. , wrapped with gauze, placed on 25 °C ~ 28 °C under the germination, 4 to 5 days after the seed can be exposed white. It can also be soaked in 10% trisodium phosphate solution for 15 minutes to act as a passivation virus.
2. Nutrition soil preparation. Generally, 6 parts of non-bacterial Datian soil and 4 parts of fully decomposed circumfertilizer are mixed to form mixed soil, and then 1 kg of superphosphate, 80 g of carbendazim and 60 g of trichlorfon per cubic meter of mixed soil are mixed thoroughly. Cover film dwelling for 10 to 15 days, into the nursery tray or shop in the pot, soaked in water, ready for sowing.
3. Sow and separate the seedlings. The germinated bell pepper seeds are sown in a seedling dish or in a pot, covered with 1 cm thick, covered with a plastic film, and kept moist. When 70% of the seed is unearthed, the mulching film is removed. When the seedlings grow to 2 to 3 true leaves, they can be divided into seedlings. The seedlings were divided into 8 cm 10 cm nutrient bowls equipped with nutrient soils, 1 strain and 1 strain.
4. Temperature and humidity management. The pre-emergence temperature must be controlled at about 20°C, and the daytime temperature is controlled at 28°C-30°C and 18°C-20°C at night. When the seedlings are flush and the cotyledon flattened, the temperature should be appropriately lowered to prevent seedlings from becoming long, and the temperature should be controlled at 25°C-27°C during the day and 17°C-18°C during the night to ensure cotyledon hypertrophy, moderate petiole length, and robust growth. 3 to 4 days before seedlings, ventilation is strengthened, daytime temperature is controlled at about 25°C, and night temperature is about 15°C. The seedlings can be subjected to low-temperature exercise to facilitate the seedlings after sub-seedling. Within one week after seedling, the ground temperature is controlled at 18°C ​​to 20°C, and the daytime temperature is controlled at 25°C to 30°C. After about 1 week, the young seedling leaves Growth, proper ventilation and cooling, to prevent seedlings grow. To control the humidity during the seedling stage, it should not be wet before the seedlings are separated; after the seedlings are separated, the new leaves begin to grow, the bed soil moisture evaporates quickly, the soil is slightly dry, and the water is properly watered.
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