What are the cultivation techniques of tomatoes in autumn?

Tomato generally refers to tomato, which is an annual or perennial herb. It is one of the common ingredients in daily life and is widely planted in various places. What are its autumn cultivation techniques?

What are the cultivation techniques of tomatoes in autumn?

1. Selection of species

Autumn sowing tomatoes should choose mid-and late-maturing varieties that are heat-resistant and disease-resistant, with pure varieties, no mildew or no moth, and high-quality seeds with germination rate and germination potential of more than 90%. Under the condition of normal seedling management, the seed consumption per mu of production field is 20-50 grams.

two。 Soaking seeds by soil preparation

Select the garden with deep soil layer, loose and fertile soil, strong water and fertility conservation, convenient drainage and irrigation, and flat garden as the nursery bed. Disinfect the seeds before sowing, blanch the seeds in 55 ℃ warm water for 10 minutes, then soak them in 10% trisodium phosphate solution for 20 minutes, remove them and rinse with clean water. Seed dressing with Luheng No. 1 can sow seeds.

3. Sowing and planting

Sowing methods can choose sowing, strip sowing and on-demand sowing, and seedling management should be done well after sowing. When the seedlings grow 5-6 true leaves, they can be planted in the field. The planting density is about 3500 plants per mu for single stem pruning and about 2000 plants per mu for double stem pruning. The time should be rainy or sunny in the evening, and the root injury should be as little as possible when transplanting seedlings.

4. Field management

After planting, tomatoes should do a good job of pruning and flower protection, appropriate topdressing during the growing period, not partial application of nitrogen fertilizer, should be combined with phosphorus and potassium fertilizer. Irrigation should be controlled during the flowering of the first inflorescence to prevent flowers and fruits from falling due to excessive growth of stems and leaves. After the fruit is set in the first ear, the plant needs more water and should be irrigated in time. Pay attention to drainage in the rainy season.

In addition, in the process of tomato cultivation in autumn, we should pay attention to the invasion of diseases and insect pests such as late blight, virus disease, cotton bollworm and so on.