What are the latest measures for protecting sugarcane from freezing over winter?

Sugarcane is mostly marketed in spring, but in fact sugarcane has already matured in winter. The cold winter is not conducive to marketing, so it is only marketed when temperatures rise in spring. If it is harvested and stored in winter, once the storage time is too long, it will cause sugarcane to lose water, and it is also prone to rot, so many growers choose to overwinter it in the cane field. However, the lower temperatures during overwintering can cause freezing damage to sugarcane, so overwintering freeze protection measures are extremely important. Below, Qinnong Network brings several freeze protection measures for overwintering. Let's take a look.

1. Smoke fumigation for freeze protection

In winter, when temperatures are relatively low, frost is very likely to occur, causing the entire cane field to yield nothing. We can raise the temperature by smoke fumigation to prevent freezing damage. Set up a smoke pile in a ventilated area of the cane field, and burn it at night when temperatures are relatively low, continuing until temperatures rise in the morning. This can generally raise the temperature by 1-30 degrees, but it must be done properly. If an open flame is produced, it is also extremely harmful. It is only suitable for sparsely populated, open environments, and it causes a certain amount of environmental pollution.

2. Irrigation for freeze protection

Irrigation for freeze protection is suitable for arid areas and not for humid environments, otherwise it will have the opposite effect. Properly irrigating the cane field can both enhance photosynthesis and increase yield and sugar accumulation, increasing soil moisture. During the day it stores heat, so that at night the soil cools slowly, which can play a role in freeze protection.

3. Applying more fertilizer

In winter, when temperatures are relatively low, we can find ways to raise the temperature, and fertilizing is also a relatively practical method. Before winter begins, apply phosphate fertilizer or heat-generating organic fertilizer as a top dressing. In this way, the fertilizer releases heat as it decomposes, which can both increase soil temperature and the cold resistance of sugarcane, and also increase yield.

In cane fields where sugarcane is left to overwinter, before the frost season ends, the ridges must not be opened and the soil must not be loosened, so as to prevent the sugarcane root system from suffering freezing damage. If the frost is relatively severe, the fallen cane leaves can be collected to cover the roots of the sugarcane, or plastic film can be used directly for mulching. Cane leaves can raise and maintain ground temperature and play a role in freeze protection.

The above are the sugarcane overwintering freeze protection measures brought to you by Qinnong Network. There are many freeze protection measures for sugarcane, and only the common methods are listed here. We hope they can help you. For more agricultural knowledge, please stay tuned to Qinnong Network.