The latest anti-freezing measures for plum trees in winter

Plum is a kind of fruit that many people like to eat, and the planting area in our country is also relatively large. When planting plum trees, we should pay attention to the management according to the changes of seasons. If it is not managed properly, problems can easily arise. Especially in winter, plum trees are prone to frostbite. So how do plum trees freeze in winter? Let's take a look at it together with Xiaobian below!

1, irrigation white

In early winter, when temperatures are very low, plum trees are vulnerable to frostbite. In spring, when plum trees begin to germinate, watering can be appropriate to reduce the ground temperature and delay the germination of plum trees. It is best to water the plum tree twice before flowering after germination, and the flowering time can be delayed for about three days. Moreover, if the tree is properly watered before freezing injury, the tree temperature can be appropriately increased to prevent the tree from being frozen. If plum trees are painted white in winter, it can not only prevent freezing, but also prevent pests and diseases.

2. Enhance tree vigor

Freezing injury can cause damage to young fruit, leaf tip and other organs of plum. Therefore, we should strengthen the plum tree vigor, strengthen fertilizer and water management, and supplement nutrition for plum trees. To enhance plum tree growth and cold resistance, more fertilizer should be applied before and after flowering, mainly special fertilizer for fruit trees. It can also be combined with an appropriate amount of potassium dihydrogen phosphate or urea, etc., about once a week. Not only can the growth of plum trees be enhanced, but also the tree vigor can be restored after the plum trees are frozen, and the fruit setting rate and the weight of single fruit can be improved.

3. Reasonable pruning

After discovering that branches and fruits are frozen, you can not rush to prune them in a short period of time. The principle is to thin the fruits late and keep as many fruits as possible. Keep some fruits that are not seriously damaged or not damaged, increase the number of fruits, and minimize the losses caused by freezing damage. Then pull the plum tree branches and open the horns, inhibit the vegetative growth of the plum tree, and let the tree recover naturally. If the branches cannot be restored due to freezing damage, then they should be built to the healthy parts of the branches in time so that they can resume sprouting and sprouting as soon as possible. The damaged branches and buds should also be removed to promote the germination and fruiting of hidden buds.

4, smoke antifreeze

Fumigation is a common method to prevent freezing injury in plum trees. Its effect is mainly based on the quality of tobacco, orchard temperature in two degrees, the number of tobacco per mu at least to maintain about 5 piles. The height and diameter of the haystack can be maintained at about 150 cm, and then insert a few sticks on the haystack as ventilation holes. Cover the hay with a layer of wet grass or mud to increase smoke and smoke time. Smoke can be used straw, weeds and other substances, in the temperature above minus two degrees, the effect of freezing damage is very good, if below minus two degrees, then it will affect the effect.

The above is a brief introduction to winter anti-freezing measures for plum trees. Today's introduction is here, this article is for reference only, I hope to help everyone oh!