Tomato cultivation techniques in Autumn and Winter

Tomatoes must be familiar to everyone, and tomatoes are what we often call tomatoes. In China, the planting area of tomato is very large, and tomato also has great nutritional value. The planting time of tomato is generally planted in spring and autumn. So how to grow tomatoes in autumn and winter now? The following editor brings you the cultivation techniques of tomatoes in autumn and winter, let's have a look!

1. Seed treatment

Before sowing, we must first prepare the seedbed. Some greenhouses that have not yet been removed from the greenhouse film can be used or an arch shed about 1.2 meters high can be set up to raise seedlings. Because in autumn, there will still be the sun, the light is also relatively strong, so we also need to do a good job of shading. Then select the good seeds and soak them in warm water of about 55 degrees for about 20 minutes. Wait until the water temperature drops to about 20 degrees, then leave it in the water for about 45 minutes. Then remove the seeds and put them in a solution such as trisodium phosphate for half an hour, remove and wash them, then begin to sprout, and sow after half of the seeds are white.

2. Sowing seeds at the right time

After preparing the seedbed and seeds, we need to find a good time to sow seeds. The sowing time of tomatoes in autumn and winter is usually around the Mid-Autumn Festival every year. The seedling raising method is mainly based on the seedling tray, and the specific hole plates are selected according to the number of seedlings, generally 72 holes and 128 holes. The preparation of seedling substrate is also important, mainly with twice the amount of peat and twice the amount of vermiculite. The matrix should be disinfected with carbendazim and other agents, and then add an appropriate amount of nitrogen, phosphorus, potassium and other compound fertilizer as base fertilizer.

3. Seedling stage management

After sowing, it is necessary to strengthen management and promote the growth of seedlings. Tomato seedlings are vulnerable to diseases and insect pests such as blight and aphids. Potassium permanganate and imidacloprid can be used to control the disease. After the seedlings grow a true leaf, it is necessary to do a good job of replenishing seedlings. And we should pay attention to adjust the temperature and humidity to prevent the high temperature and humidity environment from affecting the growth of seedlings. Set up a shade before sowing, and then pour a little water every evening to lower the temperature. While meeting the demand for light of seedlings, it is also necessary to prevent excessive light from causing excessive growth of seedlings. In the week before planting, attention should be paid to the work of refining seedlings and improving the survival rate of planting.

4. Timely planting

Before planting, the planting field should apply sufficient base fertilizer, which is mainly farm manure, combined with appropriate amount of calcium superphosphate and so on. Then turn the soil deep and get the bed ready for planting. When raising seedlings, if 128 hole trays are used to raise seedlings, they should be planted when 5 true leaves and 1 heart leaf are grown, and 7 true leaves are needed for 72 holes. It should be planted in the afternoon on cloudy or sunny days. Planting should be based on large and small rows, the large row spacing should be controlled at about 80 cm, the small row spacing should be controlled at about 50 cm, and the plant spacing should be kept at 30 cm, and sufficient water should be poured into it after planting.

The above is a brief introduction of tomato cultivation techniques in autumn and winter. That's all for today's introduction. This article is for reference only. I hope it can help you all.