Cultivation techniques of eggplant in overwintering season

Overwintering eggplant is a cultivation mode for annual production, supply of severe winter and early spring market. it is raised in the first and middle of September, planted in the middle of November, and harvested in the middle of January. from June to July of the following year, the yield per mu can reach 9000 kg. The average market price per kilogram is 4.0yuan, the gross income per mu can reach 36000 yuan, excluding the production cost of 3800 yuan, a net profit of 32200 yuan can be obtained.

The main cultivation techniques are as follows: it is best to adopt grafting cultivation in overwintering eggplant, which can greatly improve the stress resistance of the plant and obtain high-yield and high-quality products.

1. Variety selection: scion "Fengyan No.1", seed amount 50 grams per mu, rootstock "Tolubam", seed amount 5 grams per mu.

2. Seedling raising: (1) sowing time: split grafting method was adopted, and the rootstock seedlings were sown dry for 15 days than the scion seedlings. (2) seed soaking and sprouting: the method of variable temperature was adopted. (3) grafting: when the rootstock seedlings grow to 4-5 leaves, and the scion grows to 2-3 true leaves, the grafting is carried out.

3. Planting: when the seedling age reaches 60-70 days, the plant can be planted when the plant has flower buds with the size of soybean grains, and the planting is cultivated in large and small rows, 80cm, 60cm, 45cm, and the planting density is 2100 plants per mu.

4. Management after planting: (1) temperature management: generally 25: 30 ℃ in the morning, 28: 20 ℃ in the afternoon, 20: 13 ℃ before midnight, 13: 10 ℃ after midnight. (2) Fertilizer and water management: proper water control in the early stage, when you stare at the door eggplant, 20 kg of urea per mu combined with watering, entering the peak period of results, one water in 7 days, one fertilizer in half a month, 30 kg of diammonium phosphate and 20 kg of urea per mu.

5. Pruning method: double trunk pruning method is adopted.

6. Protect flowers and fruits: spray flowers with Tomato Ling and Fangluo 30~50ppm, and wipe flowers with 2.4 Mel D 20~30ppm.

7. disease control: the main diseases in this crop are quenching disease and bacterial wilt. He Xiuling