Question 2: When will orange trees be pruned in winter? Remove the horizontal branches, old branches, weak branches and diseased branches, then dig a shallow ditch near the root and apply some fertilizer. If only this circle were as big as the largest diameter of the branches hanging on the ground.
Question 3: How to prune orange trees? What season is pruning? Which branches should be cut and which should be left? ) Citrus pruning
I. Concept
1, reshaping: pruning the tree to produce a reasonable shape and tree structure, so that the tree can make rational use of space and make full use of light energy. Plastic surgery must be achieved by pruning and controlling branches.
2. Pruning: Pruning in a broad sense includes pruning tree posture and pruning. Pruning in a narrow sense is purposeful and reasonable pruning, that is, adjusting the growth results of citrus by pruning, pruning, pinching, bending branches, twisting branches, sprouting, cutting roots, cutting around, pulling and hanging, or by the action of growth regulators and chemicals to achieve the set tree shape and structure.
Second, the significance
1, increasing fruit yield. Through shaping and pruning, the crown skeleton is compact, firm, reasonable in structure and distinct in layers; Enhance the ventilation and light transmission ability to form a three-dimensional effect; Strengthen the tree potential, improve the ability to bear fruit, adjust the "big and small years" and extend the economic bearing year; In addition, through reasonable pruning and other management measures, the trees in the whole garden can achieve consistent growth and development, give full play to the fruiting force of the population, and improve the yield per unit area.
2. Improve the quality of fruits. Reasonable pruning of citrus trees can be based on the age, shape, potential, branch group and the strength of branches, and each can do its best to bear the corresponding fruit yield. In this way, the nutritional supply of fruits is guaranteed, and the fruits are well developed, uniform in size and rich in high-quality fruits. Moreover, the illumination of the pruned trees is greatly improved, and the fruits can be basically full-colored.
3. Enhance stress resistance and reduce pests and diseases. The pruned citrus tree has reasonable skeleton, sufficient branches and leaves, good ventilation and light transmission, which ensures that the tree is strong and full of branches, enhances the stress resistance of the citrus tree, and pests and diseases are not easy to parasitize and spread. At the same time, the branches of pests and diseases are cut off during pruning, which reduces the base of pests and diseases, so the harm of pests and diseases can be reduced.
4. Reduce costs and production costs. Reasonable pruning can enhance the resistance of trees, thus reducing the number of spraying, improving the yield and output value, and relatively reducing the cost. In addition, through pruning control, the height and size of orange trees are relatively consistent, which is convenient for orange orchard cultivation. At the same time, because the tree is strong, it can enhance the absorption and utilization rate of fertilizer and water and reduce nutrient consumption. Therefore, it can reduce the production cost, reduce the cost and increase the income.
5. Update, update and innovation. By pruning, decaying branches, branches, even big branches and main branches can be updated in time.
Three. principle
1, depending on the tree, pruning when looking at the ground means making the best use of the situation.
2, plastic pruning should dwarf the crown, which is conducive to ventilation and light transmission and increase the volume of results.
The overall situation is more important than the details. Therefore, attention should be paid to the pruning of large branches, which should be thick and not thin.
4. After the young trees are fixed, they are not in a hurry to shape, so as to increase the leaf area and bear fruit early; When pruning or thinning adult trees, the loss of leaf area should be reduced as much as possible.
5. Pruning should not be applied in isolation, but should be combined with other measures such as fertilizer and water, pest control, etc.
Fourth, trees
There are three common citrus trees in production:
1, natural round head shape: the trunk is short, 4-6 main branches are evenly distributed, and there is no obvious central trunk, forming a natural round head shape with a big bottom and a slightly small top, with compact crown hierarchy, easy shaping and good early fruiting. The disadvantage is that although the crown is large, the yield is not high, the tree is weak, and it is easy to form annual fruit. In addition, there are many small fruits in the lower part of the crown, and the skin of the top fruit is big and thick, so the excellent fruit rate is not high.
2. Natural happy shape: remove the top main branch of the natural round head shape and leave three main branches to make the crown happy, that is, it becomes a natural happy shape. This kind of tree has few branches, clear affiliation, more concave and convex crown surface, significantly improved internal quality of internal fruit appearance, three-dimensional fruit, high yield and no obvious results in different years.
3. Change to trunk shape: the number of main branches and auxiliary branches is less than that of natural round head shape, but more than that of natural happy shape, with an irregular faucet. The main branches are sparsely arranged on the main branches, with many effective branches and leaves in the crown, ventilation and light transmission, good fruit development and consistent size.
Verb (abbreviation for verb) operation
1, plastic: control mode, flexible use, appropriate flexibility. Its key points are: reasonable distribution of branches, firm crown skeleton, non-empty upper and lower parts, non-empty outer space, non-empty small space, non-overlapping upper and lower parts, non-tight left and right sides, ventilation and transparency, and three-dimensional results.
2, pruning: first of all, we must grasp the overall situation. For example, a branch will often be cut off when standing here, but it cannot be cut off when standing on the other side. Secondly, pruning in order, such as ensuring that a certain type of trees are pruned one by one in order of maintaining or reaching tree shape, expanding crown, adjusting length and bearing fruit, so as to avoid wrong pruning and missing pruning. As for pruning dead branches, weak branches, diseased branches, crossed branches, overlapping branches, etc., it belongs to conventional pruning and is suitable for pruning all kinds of orange trees in various periods.
3. Pruning period: both in winter and summer ... >>
Question 4: Prune orange trees in winter, remove cross branches, old branches, weak branches and diseased branches, then dig a shallow ditch near the roots and apply some fertilizer. If only this circle were as big as the largest diameter of the branches hanging on the ground.
How to prune citrus trees
After the citrus tree entered the senescence stage from the full fruit stage, the vegetative growth was extremely weak, the senescence branches increased and the yield decreased. Renewal pruning is to cut off the aging part of the tree and promote it to form a new crown, thus improving the productivity of the old tree. Generally speaking, in addition to crown regeneration, root regeneration should also be combined with appropriate fertilizer to promote its growth. The regeneration and pruning should adopt different regeneration methods according to the degree of plant decline: (1) rotation regeneration method. Rotating updating method is also called local updating method. For old trees with some branches declining and some branches still bearing fruit, 3 ~ 4-year-old lateral branches with some branches declining can be carried out first. ...
? How to prune citrus trees
After the citrus tree entered the senescence stage from the full fruit stage, the vegetative growth was extremely weak, the senescence branches increased and the yield decreased. Renewal pruning is to cut off the aging part of the tree and promote it to form a new crown, thus improving the productivity of the old tree. Generally speaking, in addition to crown regeneration, root regeneration should also be combined with appropriate fertilizer to promote its growth. The regeneration and pruning should adopt different regeneration methods according to the degree of plant decline: (1) rotation regeneration method. Rotating updating method is also called local updating method. For old trees with some branches declining and some branches still bearing fruit, 3 ~ 4-year-old lateral branches with some branches declining can be carried out first. ...
? How to prune kumquat
Pruning techniques of garden kumquat are as follows: (1) Young tree pruning: Young kumquat trees should be lightly pruned. Generally, only long branches, dead branches, pest branches and sprouting branches are cut off. (2) Pruning of aging branches: After kumquat enters the full fruit stage, the aging branches outside the crown can be cut off from the base to restore the tree. (3) Pruning of green branches: Except for long branches, the new branches of kumquat in the full fruit period are generally not long, and some of them grow 2-3 branches with different lengths at the same position at the top. For this kind of branch at the same level, we can adopt the method of preserving strength and removing weakness. ...
? How to prune the branches of orange trees?
Pruning orange trees is a highly technical job, which should be mastered flexibly according to different growth periods, tree size, growth intensity and year. Below I will briefly introduce the pruning requirements of orange trees in each growth period, hoping to help you. 1. Pruning requirements in each growth period: 1. Vegetative growth period: on the basis of fixed seedling shaping, the crown is mainly cultivated by shaping, and the main branch and auxiliary branch are continuously cultivated in the first 1 and second year after planting, with side branches, so that the tree body is compact and lush. Culture 3 ~ 4 times a year. ...
Question 5: When can orange trees be pruned? It can be trimmed in winter now. Cut off the back branches, long branches, horizontal branches and short fruit branches. Orange trees like light and are drought-tolerant. Put it in a bright and ventilated place on the balcony and water it thoroughly. Don't water the soil, pay attention to heat preservation in winter, for fear of waterlogging and freezing.
Question 6: How to prune kumquat trees? Generally speaking, you should prune kumquat trees once when changing pots and once after beginning of autumn. Spring pruning should be re-pruned, mainly pruning dense branches, drooping branches and dead branches. At this time, you should also pay attention to the modeling of plants, so that plants form a "three forks and nine tops" trend, and the crown grows into a round head. The summer shoots and autumn shoots of the previous year should also be shortened appropriately, leaving only three or four buds. Autumn pruning mainly involves pruning slender branches and endogenous branches. In addition, it is very necessary to thin the fruit in the young fruit stage. According to the growth of the plant, 3 ~ 5 fruits can be kept on each branch, and all the rest can be removed, so that not only the left fruits grow big, but also there are enough nutrients for the plant to grow, so as to prevent excessive cause and effect and excessive consumption of nutrients.
Question 7: How to prune potted kumquat trees in the north according to the needs of modeling?
Remove the top growth advantage.
Question 8: How to prune the orange tree 1? Pruning requirements for each growth period:
1. vegetative growth period: on the basis of fixed stem and seedlings, the crown is mainly shaped and cultivated. In the first and second years after planting, the main branches and secondary branches are cultivated continuously, and the lateral branches are arranged, so that the tree body is compact and the branches are flourishing. Cultivate shoots 3 ~ 4 times a year, form a crown as soon as possible, and remove buds in time.
2. Growth and fruiting period: continue to cultivate the crown and bear appropriate fruits. Promote new shoots 2 ~ 3 times a year, so that the branches are evenly arranged and a compact crown is formed as soon as possible. The middle and upper parts of plants do not bear fruit or bear little fruit during the day, and pruning is mainly based on bud wiping and shoot control.
3. Full fruiting period: the height of the tree is generally controlled below 250cm, the crown is wide, the periphery is concave and convex, the branches grow healthily, the thickness of the green leaf layer should be above 100cm, and the ventilation is transparent, resulting in a three-dimensional effect. Control the intersection between rows, and the crown coverage rate is 75% ~ 85%. Pruning suitable trees, deleting secrets and keeping sparse, removing the weak and keeping strong; Cut and stay, cut outside and stay inside; Cut down more trees and plant more flowers, and cut down less trees and plant less.
4. Aging period: retract and prune, renew or prune old fruit branches, new fruit branches press against the inner chamber or lower part, keep germination, prune densely and sparsely, arrange evenly, spend more flowers and prune more, and prune weak trees moderately.
2. Pruning period: from early February to mid-March in spring; Early July to mid-August is the summer and autumn season. In addition, from late April to early July, auxiliary pruning such as bud wiping, shoot control and flower cutting was carried out.
Third, pruning method: according to the characteristics of each variety and the strength of the tree.
1, multi-flowered trees should be felled again, and thinning should be combined; Trees with few flowers should be cut lightly, and only some dense branches and twigs should be deleted.
2, dead branches, serious pests and diseases, all cut off from the base.
3. Aging branches should be shortened, updated or deleted, and the length of updated branches depends on the strength and position of branches.
4. In principle, cut off the horizontal branches and long branches from the base, but when the middle and lower parts of the crown are empty, they can be appropriately cut short as regenerative branches or fill gaps; Dense branches should be trimmed properly, and those that are too long should be trimmed.
Question 9: How to prune potted plants in citrus reticulata The pruning of potted plants in citrus reticulata mainly includes cutting short, controlling buds and draining. First, it will be carried out 10~20 days before shooting. Only the terminal buds were cut off in the current year, leaving10 ~15 cm; Second, before the spring buds germinate, the plants that are not arranged to bear fruit in winter and spring are pruned again and again for weak branches, and sometimes they can be pruned again to the lower branches last year or the year before last. Shooting control refers to manually erasing shoots below 3cm, sporadic buds and early buds to promote the flowering of new shoots. Thinning branches means cutting off dense branches, dead branches, insect pests and residual branches, so that the crown density is reasonable, the branches are evenly distributed, the illumination is improved, the pests and diseases are reduced, and the fruit quality is improved.