How to prevent frost injury of papaya trees in winter

Papaya is a tropical fruit in the south, so the temperature requirement is very high. The cold tolerance of papaya is very poor, especially afraid of frost. And even if planted in the south, it is extremely vulnerable to freezing damage after entering the winter. Therefore, we must pay attention to do a good job of cold prevention in winter. So how to prevent papaya frost injury in winter? The following editor will give you a brief introduction, let's have a look!

1. Apply overwintering fertilizer

Before entering winter, we should pay attention to applying enough overwintering fertilizer. Each papaya tree should be treated with rotten farm manure, and the dosage should be kept at about 18kg. Should pay attention to control fertilization, generally should be about one meter away from the trunk of papaya tree. Then dig a circular trench that is 25 cm deep and 35 cm wide. The fertilizer is then mixed with the soil and then backfilled into the ditch. It can also be backfilled with one layer of soil and one layer of fertilizer, and the fertilizer should be covered with grass to improve the soil temperature to ensure that the roots of papaya trees survive the winter safely.

2. Binding and whitening

It is also in the winter, we have to protect the trunk of papaya trees. Wrap the tree trunk with straw and other thermal insulation items, and tie it tightly with a medicinal rope to avoid confusion, which can play a role in preventing the cold wind Rain Water. At the same time, we should also paint the trunk white, which is also a common method for fruit trees to protect against cold. It can be painted white with low concentration of lime water, which can effectively improve the cold resistance of the trunk and ensure safe overwintering.

3. Protect the growth node

In winter, we must pay attention to the protection of papaya tree growth nodes. The top or crown of the papaya tree should be wrapped with straw, film and other items to ensure that the growth node of the papaya tree will not be frozen and improve the overwintering survival rate of the papaya tree. The time to proceed should also be completed before the cold wave comes at the latest, and then in the spring of the following year, when the temperature gradually rises, new buds can gradually sprout.

4. Smoke in the garden

Smoking in the garden is actually one of the most commonly used and the most simple and effective measures to prevent the cold. Inter-garden smoking can increase the temperature in the papaya garden, so as to achieve the purpose of preventing frost injury, and can effectively reduce the loss caused by freezing injury to papaya trees. However, when we smoke, we should do it on a sunny and windless night. Straw and sawdust can be used to smoke in the garden. It can also avoid the formation of frost particles caused by the sinking of cold air and avoid damage to plant leaves.

The above is a brief introduction to how to prevent the frost injury of papaya in winter. In addition, we properly pour warm water every morning to wash the frost particles on the leaves can also reduce the harm of frost damage. That's all for today's introduction. This article is for reference only. I hope it can help you all.