After the fall of the frost and the gradual decline in temperature, many crops are entering the winter management phase, and of course the walnut trees are no exception. The walnut trees during this period are well managed not only to survive the winter safely, but also to ensure a significant yield for the coming year. The following four questions and answers are summarized here。
How should the autumn winter walnut tree be fertilized
As we all know, walnut trees are important, because they are deep-rooted species, and walnut-like branches are the result of walnut fertilisers and the key to early abundance. If we don't fertilize or panic in the fall, we can do it in the winter. The method of applying fertilizers in the winter is to dig a fertilizing ditch with a width of approximately 20 centimetres and depth of 50 centimetres outside the tree canopy and then fill the fertilizer. The application of fertilizers is mainly based on decomposition of organic fertilizers, which are determined by the age of the tree, with 25 to 50 kg per tree, 30 to 50 kg per tree during the first fruit, 50 to 80 kg per tree during the fertilisation period, and 2 to 5 kg of calcium per phosphate added. It should be noted that since the roots of the walnut tree cease to grow earlier, a frozen water layer is to be poured before it is frozen, otherwise the dry branch is prone。
Do you want to trim the walnut tree in the fall? How do you want to trim it
Walnut trees can be trimmed in the autumn and winter, but different methods of trimging are to be chosen according to the age of the tree, otherwise the consequences will be mixed. There are also general cut points for some of the calibration objectives, mainly for larvae, primary fruit trees, ferocious trees and old trees。
In the case of young trees, the main purpose of the cut is to prepare the bones of the tree, while the main task of the first fruit tree is to continue to develop the main branch and the side branch in accordance with tree-shaped requirements, so that their skeletons are strong and growing in a more balanced manner, and so that the outcome branch is programmed. The tree will be gradually removed when it subsides。
The aim of the fruit-bearing tree trimmed is to regulate the relationship between nutritional growth and reproductive growth and to improve the ventilation of the tree body. Thus, in fostering branches, cutting methods such as “shrunk first” and “tip back, slash” could be used。
An ageing tree needs to be able to rejuvenate, and when rejuvenation occurs, it can choose a strong main branch, with 50 to 100 centimetres long and the rest of it cut off。
Four points for the cut
Short cut. Cutting a single year's branches short, which stimulates the sprouts under the clippings, the more intense the local short-cuts, the stronger the swirling branches, the greater the top advantage by the sprouts, and, on the contrary, the sprouts under the clips weaken the top advantage. Good short-term utilization can create a branching of the lower level and can serve as an additional space to nurture the branches of the outcome. Twisting. This technique is more common, and many fruit trees can use it, i. E. Cutting off branches from the base, which are usually alienated by pests and pests, useless prototys, dry branches, dense cross branches, branches of the trunk, too many supporting branches, branches of the trunk. Plumbing improves the ventilation of the tree body, avoids the growth of bacteria, increases the light co-operation of leaves and increases the accumulation of nutrients, and facilitates the formation of buds and flowering fruit. It is important to be careful that the amount of estranged at a time should not be too large, otherwise it would weaken the tree position, while the estrangement should not leave short stakes to prevent healing. Shake. What do you mean, dump? What's the point of this? It eases the growth of branches, contributes to the accumulation of nutrients and promotes the formation of buds. It should be noted, however, that this method is not suitable for a strong and vertical branch on the back of the bone branch, but only for the slash and horizontal branch and the down branch on the larvae. Turn. It is the use of artificial changes in the angles and distributions of branches, which can help to reduce growth, add space, balance the tree, and facilitate the formation of buds, mainly by pulling, stowing and supporting branches。
How do you keep the walnut tree cold in winter
In winter, poor management can cause serious damage to walnut trees, especially the young ones, who need to be provided with additional cold-proof measures in a timely manner because of their limited capacity to withstand colds and the fact that they will suffer from thaws when they encounter low temperatures, affecting production next year and possibly drying or freezing trees。
What are the pests and pests that the autumn and winter walnut trees should be aware of
The fight against pests and diseases in the autumn and winter often has a multiplier effect, and there are two main types of pests that endanger walnut trees: walnut pheasant disease and walnut hysteria, both of which must be dealt with in time for winter to be cleared of the dead leaves and rotten fruit in time for centralized destruction. It is also remembered that three to five waves of thiomers were played before spring sprouts。
Summary
In conclusion, the management of the walnut trees in the winter has focused mainly on the four areas of fertilization, trimping, winterization and prevention。
