Matters needing attention in raising vegetable seedlings in winter

Vegetable planting is the main development project of rural planting industry in our country. There are many kinds of vegetables in our country, so its planting area is also very large. When raising seedlings of vegetables, the matters needing attention will be different according to the different seasons. Especially in the low temperature in winter, there are many places we need to pay attention to. So today, the editor brings you some precautions for raising vegetables in winter. Let's take a look at it.

1. Prevention of flashing seedlings

When raising seedlings in winter, because the temperature is relatively low, we should pay attention to the method of covering small sheds in greenhouse to ensure the growth temperature of seedlings in winter. However, when many people are ventilated, sometimes because the weather is fine, the vents are enlarged all of a sudden. As a result, the seedlings can not adapt to the excessive temperature difference and wind, resulting in the phenomenon of flashing seedlings. So when raising seedlings in winter, even if there is a sunny day, the soil can not be ventilated. To gradually uncover the mulch, and in ventilation, if there is a withering phenomenon, but also in time to cover, wait until the seedlings are normal. This repeated operation can effectively reduce the phenomenon of flashing seedlings.

2. Prevention of retting roots

The temperature in winter is very low, so watering in winter is also very important. When watering, we should pay attention to the amount of water, do not flood irrigation, should be based on the principle of small water drip irrigation. Do not water too much, if too much watering, it will not only reduce the ground temperature, cause damage to the root system. And if there is stagnant water, it will also lead to retting and rot in the roots, seriously affecting the nutrition and water absorption of the plant. Therefore, we must pay attention to watering in winter to prevent root retting.

3. Prevent frost injury

In winter, not only the temperature is relatively low, but also prone to a variety of bad weather, which is very disadvantageous to the growth of vegetable seedlings. Therefore, we should also do a good job of heat preservation when raising vegetable seedlings in winter, especially at night, to prevent cold snap at night from causing freezing damage to the seedlings. There are many ways to keep seedlings warm, in addition to covering them. You can also use ground hotlines, supplementary lights and other methods for heat preservation, no matter what method is used to ensure the temperature in the shed to prevent seedlings from freezing damage.

4. Prevention of dead seedlings

As I just said, the temperature in winter is very low, so heat preservation is one of the important tasks of vegetable breeding in winter. When doing a good job of heat preservation, the ventilation condition in the shed becomes worse, which leads to the increase of humidity in the shed. As a result, vegetable seedlings are prone to various diseases such as quenching disease, blight and so on, resulting in the phenomenon of seedling death. Therefore, when raising seedlings in winter, under the condition of ensuring the temperature, it is necessary to do a good job of ventilation and humidity reduction, reduce the incidence of diseases and reduce the phenomenon of seedling death.

The above is a brief introduction to the matters needing attention in raising vegetables in winter. That's all for today's introduction. This article is for reference only. I hope it can help you all.