Question 1: Pruning techniques of apricot trees are illustrated with examples. The main pruning methods are: hunger 1. Eliminating sprouting refers to erasing too many dense buds or twigs in time after sprouting in spring, so as to reduce nutrient consumption and make the remaining branches get sufficient nutrition and light. This method is mostly used for young trees. It is best to smear the bud as soon as possible, and the length of the tender tip should not exceed 3 ~ 5 cm. At this time, the branches are not lignified, so they can be erased by hand, and the wounds caused by them are easy to heal; When old trees are regenerated, many useless branchlets are easy to sprout near the sawing mouth and should be erased as soon as possible. (2) Some varieties of young trees are easy to attract some vigorous upright branches, resulting in the crown not opening. For this kind of branch, it can be pulled into a certain angle with a rope after the sap flows out and before germination, so as to slow down the growth, promote the growth of fruit branches and bear fruit early. The angle of branch pulling should not be too large, and 45 ~ 50 degrees is appropriate. If the angle is too large or flat, the upright branches will flourish on the back and still flourish, affecting flowering and fruiting. For this kind of upright flourishing branch, if it is not cut or slowly pulled, some fruit branches can also be formed in the front (upper) part, but the lower part is easy to be bald after fruiting, which reduces the fruiting position and affects the yield and quality. (3) Core picking is the tender part of the new tip. For long branches, regenerated branches, elongated branches and upright intermediate branches growing on the back, they germinate at suitable positions in the crown, and the light conditions are good. When the new shoots are about 40 cm long, the time for coring is better. However, the extended branches of the main and lateral branches at all levels and the branches replacing the extended branches can be coring-free, such as increasing the angle and increasing the order of the branches, but the number of coring can not be too many, so as not to enrich the branches. About 10 days after the new shoot is cored, the lower part can be branched and lignified. However, if the core is removed more than three times, it may cause freezing damage when the branches are not fully grown, or it may weaken the tree because of too many branches.

Question 2: How to prune apricot trees? Apricot trees generally adopt the natural happiness tree shape. At this time, the upright branches, over-dense branches, overlapping branches, cross branches and pest branches on the back are mainly removed to improve the illumination of the inner hall of the crown.

Question 3: When will apricot trees be pruned? 1. When young trees are pruned in summer, excessive branches, competitive branches and back branches in new branches should be cut off or thinned. At the end of June, we should pick the main lateral branches and the extension branches of the central trunk, germinate the secondary branches, and increase the order and number of branches and buds, which will not only make the crown of apricot trees form early, slow down the growth of branches, but also reduce the ineffective growth of branches. Saving too many dense branches can improve the ventilation and light transmission conditions of young trees.

2. Pruning trees at the beginning of fruit in summer Pruning apricot trees at the beginning of fruit is mainly based on thinning or heavy pruning, thinning or heavy pruning or short pruning, including competitive branches, back branches and long branches, reasonably thinning out over-dense branches, improving ventilation and light transmission, and preventing the growth of invalid branches.

Third, prune and refresh the old trees to revitalize them. Summer pruning is very important. For example, the big branches retracted in winter will have a large number of new shoots and strong growth potential in the coming year. When pruning in summer, the back branches and long branches should be thinned or shortened to reduce the growth of useless branches and increase the rapid growth of reserved branches. Unblock the over-dense branches, cut short the main growing points with vigorous growth, induce secondary branches, and increase the number of branches and buds. Summer pruning should be carried out several times in June-August.

Question 4: How to trim apricot trees? Apricot trees like sunshine very much. Whether natural round head shape, natural open heart shape or evacuation layered tree shape are adopted, there should not be too many main branches, but the number of layers should be large, so that sunlight can enter the inner room to improve ventilation conditions and improve the utilization rate of light energy. Only through reasonable shaping and pruning can we form a reasonable crown structure and adjust the balance between growth and fruit. Pruning apricot trees should adhere to four principles: 1. Pruned apricot trees show different growth and fruiting habits due to different varieties and tree ages. Therefore, we should also pay attention to the method of pruning. When pruning, you should plan ahead and decide according to the actual tree body, and you must never mechanically shape it. As far as the same branch is concerned, the growth, angle and fullness of buds are also different. This requires different methods according to the specific situation of apricot branches in order to achieve the expected purpose. Second, it is necessary to consider the rationality of pruning as a whole, which will have a certain impact on premature harvest of young apricot trees, high and stable yield of trees in full fruit period and the formation of high-quality fruits. Therefore, we must make overall plans and consider all aspects. When apricot trees are young, they should grow well, expand their crowns quickly, bear fruit early, grow well and bear fruit correctly. At the same time, we should also consider the development prospect and prolong the bearing life. If we only pay attention to immediate interests and unilaterally emphasize early fruiting and high yield, it will inevitably lead to weak trees and form small old trees. It is not conducive to the needs of production development if one-sided emphasis is placed on tree shape and early fruiting and high yield are ignored. Similarly, apricot trees in full fruit should also give consideration to growth and fruit. Three, the tree potential should be balanced on the same apricot tree, and the growth potential of the backbone branches at the same level must be basically the same to prevent the imbalance between strength and weakness. However, the principal-subordinate relationship between backbone branches at all levels should also be clear, and those with central leadership should absolutely maintain their growth advantages. The main branches of each layer should be stronger in the lower layer than in the upper layer to prevent the phenomenon that the upper layer is stronger and the lower layer is weaker. When pruning, the subordinate branches must make way for the main branches, so that the backbone branches at all levels can maintain a clear master-slave relationship. Fourth, light and important combination. If soil, fertilizer and water management can keep up. Full flower buds can be formed when the branches are born that year. In addition, some apricot varieties with tall and straight trees can also bear fruit well on vigorous branches. Therefore, young apricot trees don't need to be cut lightly and put slowly. But according to the actual needs, pruning can be combined with light and heavy. However, appropriate methods are necessary to reflect the characteristics of apricot trees.

Question 5: How to prune apricot trees? Plastic trimming

1. Apricot trees are still growing after harvesting, so it is necessary to control vegetative growth, relieve tree vigor and improve light conditions in the trees. Open the branches of Wang Zhi to relax the tree and promote flowering; The new buds were cored twice to promote branching and culture buds. After the results, the fruit branches that are obviously weak and drooping should be properly retracted. For the long branches sprouting on the crown, if there is room for growth, measures such as pinching and twisting should be taken to control their vegetative growth; For long branches that have no room for growth, it is necessary to cut them in time. At the same time, dead branches, cracked branches, pests and diseases branches, cross branches, overlapping branches and weak branches in the crown should be cut off to reduce the nutrient consumption of the tree and improve the ventilation and light transmission conditions of the tree, thus forming high-quality flower buds.

2. For the overgrown apricot orchards, paclobutrazol (PP333) or PBO can be sprayed to control the tree vigor, thus forming flower buds.

Question 6: When should apricot trees be pruned properly and how to prune branches? It's best to prune them in spring. Just trim the bright branches.

Question 7: When will apricot trees be pruned? Winter pruning is the pruning of apricot trees after defoliation and before germination in the next spring. The main task of pruning stage is to adjust the relationship between growth and fruiting, maintain the tree vigor, and extend the fruiting period at the full fruiting stage. When pruning, according to the growth of branches and the spatial situation of each part of the crown, the density and pruning can be appropriately reduced to maintain stable fruiting parts and growth potential. Plastic surgery and pruning are bound to cause wounds. If it is not closed in time, wound pollution will cause chapped, frostbite, burn, dry rot and other wound healing obstacles. It can be used for sawing wounds, protecting the growth of wound healing tissues, preventing the infection of rotten bacteria, preventing soil and rainwater pollution, preventing freezing and preventing the wound from cracking. Spraying tree protection agent can destroy the virus supply source, close the virus replication and transmission path, prevent pests and diseases from falling on trees to breed, improve the disease and cold resistance of fruit trees, and promote them to hibernate early and restore their vitality.

Question 8: How to prune apricot trees in the courtyard;

1, according to the basic tree shape, choose the appropriate tree shape (small crown sparse layer shape, natural happy shape, round head shape);

2. Pruning points: mainly to drain (cut off from the base) upright and vigorous branches, too dense branches, thin branches, crossed branches, overlapping branches, branches of diseases and pests, etc. Back to improve the illumination of the crown hall; Give priority to thinning and take as few shortcuts as possible.

3. Attention should be paid to opening the angle of main branches in the young tree period, easing the tree potential and bearing fruit in advance.

Question 9: How to Prune Apricot Trees in Spring Apricot trees are generally not pruned in spring. Pruning is usually done in summer and winter.

1. The branch and bud types and growth and fruiting habits of apricot trees are different from those of ordinary fruit trees. Therefore, apricot pruning is also unique: the fruit performance is stable, the growth results are transformed quickly, and the jujube tree head is transformed into jujube rootstock, which has strong ability to bear fruits continuously, small growth and easy pruning; However, apricot trees are slow to respond to pruning, so they need to follow the trend and shape with branches; Pruning of apricot trees should be light, and pruning in winter and summer should be combined.

2. Apricot trees have fewer vegetative branches, which can be naturally transformed into fruiting branches. The relationship between growth and fruit is relatively easy to coordinate. Pruning apricot trees should pay attention to the cultivation of skeleton, the distribution of mother branches, the control and adjustment of branch age, and the adjustment of tree length according to the affiliation.

3. The growth and development of four branches and two buds of apricot trees have certain regularity. Branches and buds are interdependent and mutually transformed, and the relationship between old and new is also alternating. The main bud is planted on the top of jujube head and jujube tree rootstock, or on the side between the axils of jujube head leaves. The jujube head and jujube tree rootstock formed after development are not only different in growth, shape and function, but also can be transformed into jujube head and jujube stock due to diseases or changes in nutritional conditions.

4. After * * * happens to the jujube rootstock, the jujube head can be extracted by pruning, and the bearing branches can be transformed into growth branches; Early coring of jujube tree head can inhibit the growth of secondary branches, so that jujube tree head can be transformed from growing branches to fruiting branches, and the yield can be obtained in that year. The secondary branches on jujube head are formed by secondary buds, and the main buds between leaf axils can generate new jujube strands in the next year. The interdependence and mutual transformation between growing branches and fruiting branches are the basis of pruning and adjusting branch potential of apricot trees.

5. Apricot trees have a long life, few natural branches, and young branches are slow to respond to pruning, making it difficult to grow branches. Therefore, the shaping time of apricot trees is slower than that of their fruit trees, and it usually takes 7 ~ 8 years to complete the shaping.