A course on the latest anti-cold and anti-freezing techniques of oranges

Oranges have no obvious dormancy, and if the weather is warm in winter, they are extremely prone to early sprouting, which is one of the reasons why oranges are extremely vulnerable to frostbite. With the advent of winter, the temperature drops sharply, and cold prevention is also a work that every fruit grower must do. How to prevent cold and frost? Let's have a look with the editor.

1. Irrigate frozen water

In winter, the temperature is high in the daytime and low at night, so it is easy to choose the phenomenon of early germination, resulting in plant freezing injury. Freezing water can be poured once before freezing, which can effectively replenish plant water, reduce the harm caused by winter drought and reduce the possibility of early germination. In addition, pouring frozen water can increase the ground temperature and protect the roots from freezing damage, and the irrigation time of frozen water should be fully watered at one time during the daytime period of night freezing.

2. Improve the orchard climate.

It can improve the method of artificial regulation and create the microclimate of the orchard, and choose a mountain barrier in the north to build the orchard when planting, which can weaken the cold current in the north, reduce the wind speed and reduce the freezing damage. On the other hand, the orchards that have been built can build shelterbelts around them, which can also increase the temperature between the orchards and reduce freezing damage. According to the study, within 13 times the distance of the shelterbelt, the wind speed of the orchard is 30% slower than that of the orchard without shelterbelt, and the temperature is 0.5-2 degrees higher.

3. White binding

Tree trunk whitening is one of the main measures to protect trees from cold. In winter, we will see that tree trunks on the road will be coated with a layer of white substance, which is mixed with lime water and an appropriate amount of stone sulfur mixture, and its cold protection effect is better. After painting white, the trunk can be tied up with straw, and after the temperature warms up, the bound straw can be removed. This method is simple and convenient, and is suitable for most parts of our country.

4. Medicine to prevent cold

The plant can be sprayed with Happy Forest antifreeze for 5 times one month or one and a half months before defoliation in autumn, which can increase the dry matter accumulation of branches and improve the freeze resistance of plants. It can also be sprayed before the plant is frozen, it can form a thin oil film on the branches and leaves of the plant, so as to improve the ability of anti-freezing.

The above is the introduction of anti-cold and anti-freezing technology of oranges. I hope it can help you. If you want to know more about it, please follow us.