Winter-proof techniques of blueberries

Blueberry is a perennial shrub small berry tree, its branches are thin and the xylem is thin, so it is easy to cause freezing injury and striping under the action of low temperature and wind in winter, so it is very important for blueberry to prevent cold in winter. So how to protect it from cold in winter so that it can survive the winter safely? Let's take a look.

1. Bury the earth to guard against the cold

In late autumn and early winter, the whole plant is buried with moist fine soil, which ensures that the water in the branches and leaves will not be lost, but if the plant is tall, the plant can be overwhelmed by the soil and buried in the soil. But in practice, in order to save time and effort, you can cultivate an arc-shaped mound of about 40 cm to the wind, artificially forming a leeward and sunny environment. This can shorten the freezing time of the soil and help the root system to absorb water.

2. Make snow to protect against cold

In the northern region, winter is colder, and there is a large amount of snow, so it can be harvested with snow. Blueberry plants with snow cover are not only more productive than other cold prevention measures, but also convenient and quick. Generally, it is appropriate to cover 2/3 of the plant height, and the general suitable height is 20-30 cm. The plants treated with snow are rarely striped, and the yield is greatly increased, but this method is suitable for areas with heavy snowfall and snow in winter.

3. Cover against cold

Before freezing, the plant can be covered with some leaves, straw, straw curtain and other mulch, which can play a role in preventing cold. In addition, combined with watering frozen water, the effect is better in the area above minus 10 degrees. The use of leaves, straw, straw curtains and other things for protection, suitable for more than 3 years of orchards, but also can use double-layer covering cold protection materials for cold protection, cold protection is more labor-saving, the materials can be reused for several years.

4. Plastic greenhouse or greenhouse

The use of plastic greenhouse or greenhouse cultivation, this method is the best cold protection, but also can make blueberries mature early and appear on the market in advance, but the disadvantage is that the early investment is larger.

The above is the introduction of blueberry overwintering cold protection technology, hope to help you, want to know more related knowledge, please follow us.