Seedling raising technique of Capsicum in protected Field

Seedling raising time and seedling stage. Pepper is cultivated in spring in protected area, usually sowing and raising seedlings from January to February, and the seedling age is 90-110 days. Sow seeds at the right time according to the planting date. Nursery facilities. (1) high-efficiency and energy-saving solar greenhouse; (2) improved solar border with heat preservation; (3) plastic greenhouse, small arch shed covered with plastic film and grass curtain. Seed treatment. (1) soaking seeds with chemicals. In order to prevent and cure anthracnose and bacterial spot, the seeds can be pre-soaked in clear water for 5 hours, then soaked in 1% copper sulfate solution (1 part of copper sulfate, 99 parts of clear water) for 5 minutes, then removed, washed with clean water for budding, or soaked in 150 times formalin (40% early aldehyde) for 15 minutes. In order to prevent and cure the virus disease, the seeds were pre-soaked in clean water for 4 hours, then soaked in 19% trisodium phosphate solution for 20 minutes for 30 minutes, or pre-soaked for 5 hours for 6 hours and soaked for 15 minutes. The seeds can also be soaked in 2% sodium hydroxide solution for 15 minutes. (2) soaking seeds in conventional warm soup. The water consumption is 5 times that of the seed. Pour the seed into 55 ℃ water and stir immediately. After the water temperature drops to 30 ℃, soak for another 8 hours. This method has bactericidal effect on scab and Sclerotinia sclerotiorum. Sprouting. Will soak the seeds, first rub the mucus on the skin, and then wrap it in a wet cloth and put it in a warm place to germinate. Sprouting should be accelerated by changing temperature, that is, 28: 30 ℃ / day for 16 / 18 hours and 16 / 20 ℃ for 6 / 8 hours. In the process of accelerating germination, the turning and scrubbing of the seeds should be strengthened, and the seeds should be turned 2 or 3 times a day, or the wet sand equivalent to 3 or 4 times the amount of seeds can be added to the container to increase oxygen to meet the needs of pepper seed germination. Pepper seeds can germinate in 4 to 5 days at the temperature of 28 ℃ and 30 ℃, and more than 7 days when the temperature is below 25 ℃. When more than 80% of the seeds germinate, lower the temperature to 10 ℃ for pre-sowing cold exercise and prepare for sowing. Sow seeds and seedlings. The bed soil is preferably soil that has not grown eggplant fruits and vegetables for three years. The bed soil should be screened and 10 kg of high-quality organic fertilizer should be applied to every square meter of seedling bed. The seedling bed is 10 cm high and should be leveled. Pour enough bottom water before sowing. After the water is completely seeped, cover a layer of fine soil, spread the seeds of reform evenly on it, cover the soil 5 mm after sowing, cover the plastic film and buckle the small arch shed in time, in order to increase temperature and moisturize, and promote early emergence of seedlings. Remove the plastic film in time after the emergence of 70% of the seeds, and cover the soil with 5 mm when all the seeds emerge. When the cotyledons of the young seedlings are flattened, the seedlings that are overcrowded, diseased, malformed and poorly grown should be pulled out, and then covered with soil to protect the roots. The temperature management is 2530 ℃, in order to maintain the high ground temperature, gradually reduce the greenhouse temperature and control irrigation 10 days before seedling emergence, so as to shorten the slow seedling time after planting. Separate seedlings and transplant. When the seedlings grew to 4 × 5 true leaves, the seedlings were divided and transplanted according to the hole distance of 7 cm × 7 cm. Each hole was covered with fine soil of the seedling bed and filled. The seedlings should be inverted 1 or 2 times before planting to make the seedlings of the same size. 10-20 true leaves were planted.