Management measures of eggplant at seedling stage

1. Temperature management

When sowing, the ground temperature shall not be lower than 16 ℃ and the temperature shall not be lower than 14 ℃. After dividing the seedlings, the temperature was maintained at about 30 ℃ in the daytime, and slowed down at 23 ℃ at night, then dropped to 22 ℃ in the day and 18 ℃ at night, which made the seedlings grow healthily. 15 days before planting, strong low temperature exercise was carried out, and the highest temperature was about 20 ℃ in the daytime and no more than 15 ℃ at night. Gradually reduced to 10 ℃ 12 min.

2. Water management

To meet the water needs of seedlings as the principle, neither too much watering, nor too much control of moisture. Through the observation of seedling growth and topsoil moisture conditions, appropriate treatment. When the topsoil is dry and the seedlings wilt slightly at noon, they should be properly watered in the morning on a sunny day. Under the condition of normal seedling growth, the principle is to keep the border surface dry and wet.

3. Fertilizer and water management

If the bed soil organic fertilizer is sufficient, the seedling growth is normal, generally do not need topdressing. If it is found that the color of the seedlings is light green and the seedlings are thin and weak, potassium dihydrogen phosphate and urea can be dissolved in a ratio of 1 ∶ 1 in warm water, and 0.5% of the solution can be sprayed with a spray can, and then sprayed again with clean water to prevent burns to the leaves.

After the seedling was divided and slowed down, the seedling fertilizer was extracted once, and a layer of fertilizer was sprinkled in the seedling bed. The proportion was 1 part of dried manure or cake fertilizer, 1 part of rotten horse manure and 8 parts of fine soil, and then a small amount of plant ash was added to promote seedling growth and flower bud differentiation. Tian Delong