How to take cold-proof and freeze-proof measures for winter vegetable planting

Winter is a hurdle that most plants find hard to get through. In some areas of the north, the climate and temperature can be very low, so growing vegetables through the winter is a headache. The same is true in the south: as soon as a cold snap arrives, vegetables are easily damaged by freezing, which harms their growth. So how do we take good freeze-proof measures for vegetables in winter? Below, Shuaishuai will explain some corresponding methods for everyone!

1. Strengthen covering to keep warm and prevent freezing

Before the winter cold snap arrives, we should cover the vegetables with plastic film or straw to keep them warm and protect them from the cold. If you are growing greenhouse vegetables, you should reinforce the greenhouse supports and press the film on the greenhouse down tightly. To be safe, and because in some places the temperature is not just a little low, one layer of greenhouse film is far from enough, so you should reinforce another layer of greenhouse film inside the greenhouse, then put up another layer of supports over this film and cover it with another layer of film. Designed this way, it can greatly raise the temperature inside the greenhouse. Also, when building it, be sure to check all around to prevent gaps where cold air can enter and lower the internal temperature. Generally, uncover it at night and cover it in the morning, and let it air out a bit at noon so the ammonia inside is released and toxic gases are vented out.

2. Fertilize and earth up to raise soil temperature

Choose a day with relatively good weather and pour already decomposed warm fertilizers such as pig manure or cow manure onto the sunken soil around the vegetable roots. This can raise the soil temperature and protect the vegetable root system. It is very helpful for their growth and works well against the cold winter.

3. Clear ditches and channels to prevent waterlogging damage

Generally, ditches and channels need to be built properly in the field and kept open. Sometimes the ditches get blocked, which affects the field's drainage function, because after snow in winter melts in the field, a large amount of water forms, and it can only be drained away through the ditches. If the ditches are blocked, this accumulated water cannot be drained out. After snow, all the snow around the greenhouse and on the greenhouse must be cleared away completely. This can avoid snow absorbing heat from the soil to melt and lowering the soil temperature, which would cause the temperature in the greenhouse to drop sharply.

4. Control nitrogen and spread ash to improve cold resistance

Do not apply nitrogen fertilizer to vegetables at the seedling stage, because nitrogen fertilizer makes the seedlings less cold-resistant. You can also buy some potassium dihydrogen phosphate and spray it on the vegetable leaves before the cold snap arrives. You can also spread some plant ash on the surface of the vegetables. This can play a role in keeping them warm, and it can also be converted into nutrients for the vegetables. It can also prevent and control root rot in vegetables. Three benefits in one move, why not do it?

5. Irrigate to add warmth and raise the greenhouse temperature

Before the cold snap arrives, we should water the vegetables, watering them thoroughly in one go. When the freezing cold comes, it can then play a role in raising the temperature. There is also no need to water repeatedly, which reduces trouble and gets it done in one go.

6. Prune dead and diseased leaves and prevent and control diseases

During the winter, it is unavoidable that some vegetables will suffer freeze damage, so everyone should cut off the diseased spots damaged by freezing. Only in this way can you avoid it worsening and infecting other healthy parts. Also, once vegetables are frozen, their resistance will definitely decline, so we should place a fumigant in the greenhouse and light it. This can achieve the effect of preventing diseases.

The above is how to take cold-proof and freeze-proof measures when growing vegetables in winter. What I have written here may not be complete. Light management inside the greenhouse is also very important. Everyone can use transparent film, which can increase light transmission. If there is anything insufficiently explained, please point it out. I hope it can help everyone.