The method, time and technology of pepper seedling raising were introduced.

The optimum temperature for pepper seed germination is 25~30℃, and it is difficult to germinate below 65438 05℃. The suitable temperature for seedling growth is 25~27℃ during the day and 18~20℃ at night. The soil temperature should be above 65438 08℃.

seeding time

According to local climatic conditions, cultivation methods, etc. To determine the sowing date. The seedling age is 70 ~ 80 days in low temperature season and 25 ~ 30 days in high temperature season. In the north, 65438+ 10, spring sowing crops are planted in late October, and autumn sowing crops are generally planted in the middle and late July.

seed treatment

Before sowing, select full and pest-free seeds, soak them in warm water at 55℃ for 65438 05 minutes, while stirring constantly, or soak them in 0.2% potassium permanganate solution for 30 minutes, then soak them in warm water for 5-6 hours, then take them out and drain them, wrap them in clean wet gauze, and accelerate germination at 27-30℃. Rinse with warm water 1 time every day during germination, and sow when the seeds turn 80% white after 3 ~ 4 days.

Separate seedlings

30 ~ 35 days after sowing, when the seedlings grow 2~3 true leaves, put the seedlings into nutrient bowl paper bags or nutrient clods. Can be divided into single seedlings or double seedlings, be sure to choose seedlings with uniform size.

Seedbed management

1. Temperature and humidity management

Maintain high humidity within 7 days after seedling separation to promote root growth, and maintain 25~30℃ and ground temperature18 ~ 20℃ during the day; After slow seedling growth, the temperature can be reduced appropriately, which can be kept at 20~25℃ during the day and at 15~ 17℃ at night, so as to ensure the robust growth of seedlings and prevent excessive growth. Before planting 10~ 15d, the seedlings were tempered at low temperature according to the principles of less ventilation on cloudy days, more ventilation on sunny days and no ventilation on rainy days, so that the seedlings were strong, tidy and not collapsed.

2. Water and fertilizer management

Generally, water is not used in the slow seedling stage after seedling separation. After the heart leaves begin to grow, water should be used appropriately according to the soil moisture, and flooding is not allowed to keep the soil dry and wet. In the middle and late stage of seedling growth, 0.2% potassium dihydrogen phosphate and urea solution can be sprayed many times to ensure seedling growth and promote flower bud differentiation.

3. Strong seedling standard

When planting, seedling height 18~25cm, 9~ 14 true leaves, complete cotyledons, large and thick leaves, large buds and developed roots are required.