What are the precautions for raising vegetable seedlings in winter?
Vegetable cultivation is a major planting venture in rural farming in our country. There are many kinds of vegetables in our country, so their planting area is also very large. When raising vegetable seedlings, the precautions differ depending on the season. This is especially true at low temperatures in winter, when there are many things we need to pay attention to. So today we have brought you the precautions for raising vegetable seedlings in winter. Let's take a look below!
1. Prevent seedling flash wilting
When raising seedlings in winter, because the temperature is relatively low, you should use the method of a large greenhouse with a small tunnel inside to ensure the seedlings' growing temperature in winter. However, when ventilating, many people sometimes pull the vents wide open all at once because the weather has turned sunny. This makes the seedlings unable to adapt to the sudden large temperature difference and wind, causing seedling flash wilting. So when raising seedlings in winter, even on a very sunny day, you must not ventilate carelessly. You should gradually uncover the coverings, and during ventilation, if wilting occurs, cover them again in time, and uncover them again after the seedlings return to normal. Repeating this can effectively reduce seedling flash wilting.
2. Prevent root rot from waterlogging
⟦NL>The temperature in winter is very low, so watering in winter is also very important. When watering, pay attention to the amount of water; do not flood irrigate, and follow the principle of small amounts of drip irrigation. Never water too much, because if you water too much, it will not only lower the soil temperature and damage the root system. If water accumulates, it will also cause the roots to rot, seriously affecting the plant's absorption of nutrients and water. So in winter we must pay attention to watering properly to prevent root rot from waterlogging.
3. Prevent freezing injury
Winter not only has relatively low temperatures, but also tends to bring various severe weather, which is very unfavorable to the growth of vegetable seedlings. Therefore, when raising vegetable seedlings in winter, we must also do a good job of insulation, especially at night, to prevent cold waves at night from causing freezing injury to the seedlings. There are many ways to keep seedlings warm; besides adding coverings, you can also use ground heating wires, supplemental lights and various other methods for insulation. No matter what method you use, you must ensure the temperature inside the greenhouse to prevent the seedlings from suffering freezing injury.
4. Prevent seedling death
As just mentioned, the temperature in winter is very low, so insulation is one of the important tasks in winter vegetable seedling raising. And while doing a good job of insulation, the ventilation conditions inside the greenhouse also become worse, making humidity inside the greenhouse likely to increase. This makes vegetable seedlings prone to damping-off, seedling blight and various other diseases, leading to seedling death. Therefore, when raising seedlings in winter, while ensuring the temperature, you should do a good job of ventilation and dehumidification to reduce the incidence of disease and reduce seedling death.
The above is a brief introduction to the precautions for raising vegetable seedlings in winter. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!