The latest matters needing attention in raising vegetable seedlings in winter

For vegetables planted in early spring, in order to seize the market, strong seedlings are generally cultivated in winter, but the winter temperature is low and the environment is bad, which is not conducive to the cultivation of strong seedlings of vegetables, so we should pay attention to a few points for raising seedlings in winter. Let's take a look at the matters needing attention in winter vegetable seedlings.

1. Prevention of flashing seedlings

To raise seedlings in winter, it is necessary to cover small seedlings in a greenhouse and pack the normal temperature of seedling growth. Many vegetable farmers think that ventilation is safe in terms of ventilation. When the weather turns fine, the tuyere is often enlarged and the seedlings are attacked by cold wind. The resulting temperature will cause the phenomenon of flashing seedlings. Therefore, vegetable farmers need to be reminded that when raising seedlings in winter, when the weather is fine, do not suddenly ventilate. If the long overcast turns sunny, pay more attention to gradually uncover the mulch. If you find that the seedlings are wilting, you should add the mulch in time. Wait for the plant to return to normal and then uncover it. Such many times forging seedlings can prevent the emergence of flash seedlings and cultivate strong seedlings.

2. Prevention of retting roots

Low temperature and low evaporation in winter, so we must pay attention to watering, remember flood irrigation, watering small or sprinkling water, if possible, drip irrigation or film irrigation can be used. Prevention of excessive water, resulting in a sudden drop in soil temperature, and then damage the root system of seedlings, causing retting root phenomenon, serious retting root will lead to a large number of seedling death, greater loss.

3. Prevent frost injury

The weather is bad in winter, so it is necessary to strengthen the heat preservation management in the seedling shed to prevent the seedling frost damage caused by the sudden attack of cold current at night. in addition to covering the mulch, measures such as ground hot line, supplementary light lamp and warming block can also be used to increase the temperature of the seedling shed.

4. Prevention of dead seedlings

When raising seedlings in winter, the ventilation condition is poor, and the humidity in the greenhouse is high, which can easily lead to many diseases, such as quenching disease and blight disease, and easily cause the phenomenon of seedling death. Therefore, when raising seedlings, it is necessary to ventilate and dehumidify in time to reduce the probability of disease occurrence, and at the same time, it can be prevented in advance by spraying prednisone, carbendazim, chlorothalonil and so on.

The above is the introduction of winter vegetable seedlings, hope to help you, want to know more related knowledge, please pay attention to us.