A course on the latest techniques and methods of blueberry overwintering

Blueberry is a perennial shrub small berry fruit tree, its branches are thin and thin, so under the action of low temperature and wind in winter, it is easy to cause freezing injury and shooting phenomenon, so it is extremely important for blueberry cold protection in winter. So how to give it winter cold, so that it can safely winter? Let's take a look.

1. Buried soil for cold protection

In late autumn and early winter, bury the whole plant in moist fine soil to ensure that the branches and leaves do not lose water, and if the plant is tall, you can bury the plant with soil after crushing it. However, in actual operation, in order to save time and effort, an arc mound of about 40 cm can be cultivated in the wind direction of the plant, artificially forming a leeward sunny environment. This can shorten the freezing time of the soil and help the roots absorb water.

2. Pile snow for cold protection

In the northern region, winter is colder and the amount of snow is larger, so it can be harvested by piling snow. The blueberry plants that have been piled snow for cold protection are not only higher in yield than other cold protection measures, but also convenient and quick. Generally, it is appropriate to cover two-thirds of the height of the plant, generally the appropriate height is 20-30 cm, after the snow accumulation cold treatment of the plant, there is little phenomenon of shooting, the yield has been greatly improved, but this method is suitable for winter snowfall and snow areas.

3, cold cover

Before freezing, some leaves, straw, grass curtains and other coverings can be covered on the plants, which can play some role in cold protection. In addition, combined with irrigation and freezing water, the effect is better in areas above minus 10 degrees Celsius. The use of leaves, straw, grass curtains and other things for protection, suitable for more than 3 years of orchards, but also can be covered with double-layer cold-proof materials for cold-proof, cold-proof more labor-saving, materials can be reused for several years.

4. Plastic shed or greenhouse

The use of plastic greenhouses or greenhouse cultivation, this method has the best cold effect, but also can make blueberries early and early listing, but the disadvantage is that the early investment is larger.

The above is an introduction to blueberry winter protection technology. I hope it can help you. If you want to know more about it, please pay attention to us.