CN115039617A - Method for pruning cupped natural tree shapes of pear trees - Google Patents
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- 238000013138 pruning Methods 0.000 title claims abstract description 55
- 235000014443 Pyrus communis Nutrition 0.000 title claims abstract description 44
- 240000001987 Pyrus communis Species 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 38
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 34
- 238000009966 trimming Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims description 22
- 239000003337 fertilizer Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 4
- 241000220324 Pyrus Species 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 235000021017 pears Nutrition 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 230000005078 fruit development Effects 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- 244000185180 Pyrus betulifolia Species 0.000 description 3
- 235000006877 Pyrus betulifolia Nutrition 0.000 description 3
- 241000290143 Pyrus x bretschneideri Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000002420 orchard Substances 0.000 description 3
- 235000001630 Pyrus pyrifolia var culta Nutrition 0.000 description 2
- 244000079529 Pyrus serotina Species 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 244000141353 Prunus domestica Species 0.000 description 1
- 241001506875 Pyrus calleryana Species 0.000 description 1
- 235000004789 Rosa xanthina Nutrition 0.000 description 1
- 241000220222 Rosaceae Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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Abstract
The invention discloses a pear tree cup-shaped natural tree pruning method, and particularly relates to the field of fruit tree cultivation, wherein the method comprises the following specific operation steps: s1, trimming in the spring of the first year; s1.1, final singling: following the natural growth habit of the pear trees, after the trunk of the nursery stock after field planting grows to the length suitable for pruning, 3-5 new shoot branches growing upwards are partially reserved at the top of the trunk of the nursery stock after the nursery stock sprouts in spring. According to the method, the pruning steps of the pruning in the spring of the first year, the pruning in the winter of the second year and the continuous pruning are managed, the pruning technical requirement is simple, the shaping time is short, the crown of the pear tree is reduced, the production cost is reduced, the mechanical operation is facilitated, the trunk of the cultivated pear tree is thick and uniform, the mechanical operation is facilitated, and the cultivation and fruit picking of a grower are facilitated; the average yield, the per mu yield and the average single fruit weight of the single-plant fruits of the pear trees planted by the method are improved, the appearance of the pear fruits can be ensured, and benefits of fruit growers can be helped to reach the optimal value.
Description
Technical Field
The invention relates to the technical field of fruit tree cultivation, in particular to a method for pruning a cupped natural tree shape of a pear tree.
Background
The pears are plants of the genus of pears in the family of Rosaceae, are rich in resources, and are mainly used for 5 kinds of economic cultivation in China, namely, autumn pears, white pears, sand pears, foreign pears and Xinjiang pears. In addition, wild species such as pyrus betulaefolia, pyrus calleryana and pyrus betulaefolia are often used as stocks of pyrus betulaefolia. The white pears are suitable for being cultivated in a freeze-dried climate, and the sand pears are suitable for being cultivated in a warm and humid climate, and are the main species for cultivating pears in the Yangtze river-Huai river basin. The climatic conditions required by the pears are similar to those of the white pears, and the pears are suitable for cultivation in the northern Huai region.
To scientifically trim pear trees, the principles must be mastered. The tree pruning machine is characterized by comprising a tree pruning machine, a tree shape making machine, a tree planning machine, a tree shape balancing machine, a subordinate tree distinguishing machine, a light-weight main machine, a flexible mastering machine, a strength restraining machine, a weakness restraining machine, a correct control promoting machine, reasonable light utilization and robust branches. The method is beneficial to strengthening the tree vigor, promoting early fruiting, being beneficial to high and stable yield, being beneficial to producing high-quality fruits, being beneficial to the long-term economic benefit of the pear orchard and being suitable for local environmental conditions; the pruning of the young pear trees needs the technical measures of slight shearing and long placing, multi-row branch pulling, pinching, slow placing, short cutting and the like, and the thinning, retraction and the like are less used. After the fruiting period, the cutting methods such as thinning and retraction are more used, and the slow release and branch pulling are less used. In the aging period, in order to prolong the bearing age, a cutting method of updating is mostly used to recover the tree vigor. Girdling and girdling can be adopted for the vigorous tree, and the tree is short in quantity and sparse in quantity; the weak tree needs to adopt technical means such as short cutting and retraction, and the weak tree needs to adopt shearing methods such as slow release and thinning. The judgment of the tree vigor is carried out according to the growth amount and the robust condition of the annual plant, the number and the length of summer shoots and the plump condition of buds. The strong tree has the strong tree vigor, generally big and full buds, bright color, thick and bright bark layer of branches, big and prominent bark holes and small and full center of marrow, and the strong tree vigor is represented in the situation. The weak tree is expressed by weak and thin branches, small and withered buds, thin bark and short sprout, and the weak tree is expressed by the weak tree.
The traditional pear trees adopt sparse layered, main trunk and spindle-shaped pruning, the pruning technical requirement is complex, the pruning time is long, the tree crown is large, the production cost is high, the pear trees have long bearing time, and the mechanized operation is inconvenient; however, if the fruit quantity of the pear tree without pruning is small and the weight of a single fruit is small, the selling and selling routes of the fruits are seriously influenced, and the profit of the fruit growers is not benefited.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a method for pruning a cupped natural tree shape of a pear tree, and the technical problem to be solved by the invention is as follows: how to solve the big, be not convenient for operate of crown when the pear tree is planted among the prior art and the fruit tree prunes the outward appearance of the improper fruit that causes.
In order to achieve the purpose, the invention provides the following technical scheme: a method for pruning a cupped natural tree shape of a pear tree comprises the following specific operation steps:
s1, trimming in the spring of the first year;
s1.1, final singling: according to the natural growth habit of the pear trees, after the trunk length of the fixedly planted nursery stock is grown to a length suitable for pruning, after the nursery stock sprouts in spring, 3-5 new tip branches growing upwards are partially reserved at the top of the trunk of the nursery stock, and then water and fertilizer management is strengthened to promote the quick growth of the nursery stock;
s1.2, one round of thinning: in the rapid growth period of the young shoots in the 6 months, the upright young shoots with the strongest growth potential are basically removed, and finally 3-4 upright young shoots are reserved as the result, and the main branches uniformly and naturally grow;
s1.3, pinching: pinching the top of the young sprout to promote lignification of the sprout and plump eyes after autumn begins; pinching, namely topping, is the work of processing reserved main branches, basic branches or side branches; the pinching is determined according to the cultivation purpose and method, the growth type of the variety and the like; when the reserved main trunk, basic branch and side branch grow to a certain number of fruit ears and leaves (length), the growing points at the top end of the main trunk, the basic branch and the side branch are removed (the self-capping main stem does not need to be pinched); the pinching can control the heightening and the growth of the pinching, which is beneficial to the thickening growth and the acceleration of the fruit development;
s2, trimming in winter in the second year;
s2.1, cutting the bud circularly: in spring of the next year, girdling the branches remained in the step S1 for half a circle at a position 0.5cm above bud eyes before the pear tree sprouts, and girdling until the girdling depth reaches the xylem of the branches;
s2.2, two rounds of thinning branches: all the overgrown branches with lengths exceeding 30 cm on the upper back, the lower back and two sides of the branches are thinned and removed on the branches, and the thickness of the branches on the reserved fruiting main branches is directly thinned and removed when the thickness of the branches on the fruiting main branches reaches 50 percent;
s3, continuous trimming: and then pruning measures and methods are adopted for keeping fruiting main branches to reach the height of 2.5-2.6 m and cutting short at the branch positions every year, the fruiting is carried out in the 2 nd year, and a large number of fruiting periods are carried out in the 3 rd-4 th year.
In a preferred embodiment, the suitable pruning length of the planted seedling trunk in the step S1.1 is set to be 60-70cm, and the position of the shoot branch which remains growing upwards is set to be more than 50cm of the seedling trunk.
In a preferred embodiment, the remaining 3-5 shoot shoots growing upwards are subjected to bud carving treatment in step S1.1; before sprouting in spring, cutting to xylem with a knife at a position 0.5-1cm above the sprout of the young shoot; aims to promote the nutrient backflow of the roots of the tissues to promote the carved buds to germinate and grow into new branches.
In a preferred embodiment, the resulting thinning criteria for the main branches retained in step S1.2 are: and thinning the young shoots without branch strips or with few branches, and reserving the young shoots with more branch strips as fruiting main branches.
In a preferred embodiment, the ring cutting bud position in the step S2.1 is selected, and the bud eyes at the base 2-4 and the bud eyes at the top 2-4 of the branch can not be girdled.
In a preferred embodiment, the ring-cut bud-carving tool in step S2.1 is selected from a hacksaw blade or a bud grafting knife.
In a preferred embodiment, said step S2.2 ensures that all fruiting twigs remaining are medium and short fruiting twigs.
The invention has the technical effects and advantages that:
according to the method, the pruning steps of the first-year spring pruning, the second-year winter pruning and the continuous pruning are managed, the pruning technical requirement is simple, the shaping time is short, the crown is reduced, the production cost is reduced, the mechanical operation is convenient, the cultivated pear tree is thick and uniform in trunk, the mechanical operation is convenient, and the cultivation and fruit picking of a grower are convenient; the average yield, the per mu yield and the average single fruit weight of the single-plant fruits of the pear trees planted by the method are improved, the appearance of the pear fruits can be ensured, and benefits of fruit growers can be helped to reach the optimal value.
Drawings
Fig. 1 is a schematic structural view of the pinching state of the spring pruning in the first year of the invention.
FIG. 2 is a schematic diagram of a first year spring pruning round of sparse dendritic state structure according to the present invention.
FIG. 3 is a schematic diagram of the second year winter pruning round sparse tree morphology structure of the present invention.
Fig. 4 is a schematic structural diagram of the second year winter trimming two rounds of thinning and completing the invention.
Fig. 5 is a diagram illustrating the first spring pruning effect of the present invention.
Fig. 6 is a diagram showing the winter pruning effect of the second year according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1:
the invention provides a method for pruning a cupped natural tree shape of a pear tree, which comprises the following specific operation steps:
s1, trimming in the spring of the first year;
s1.1, final singling: according to the natural growth habit of the pear trees, after the trunk of the nursery stock after field planting grows to the length suitable for pruning, 5 new shoot branches growing upwards are reserved at the top of the trunk of the nursery stock after the nursery stock germinates in spring, the suitable pruning length of the trunk of the nursery stock after field planting is set to be 65cm, and the position of the new shoot branch reserved for upward growth is set to be more than 50cm of the trunk of the nursery stock; bud carving treatment is carried out on the 5 reserved new shoot branches growing upwards; before sprouting in spring, cutting to xylem by a knife at a place 0.5cm above the sprout of the young shoot; the purpose is to lead the nutrients at the root of the tissue to flow back, promote the carved buds to germinate and grow into new branches, and then strengthen the water and fertilizer management and promote the rapid growth of the nursery stocks;
s1.2, one round of thinning: as shown in FIG. 2, in the rapid growth period of young shoots in month 6, the upright young shoots with the strongest growth potential are basically thinned, and finally 4 upright young shoots are reserved as the result of uniform and natural growth of main branches; the main branch thinning criteria for retention results were: thinning out the young shoots without branch strips or with few branches, and reserving the young shoots with more branch strips as fruiting main branches;
s1.3, pinching: as shown in fig. 1, pinching of the top end of the young shoot promotes lignification of the branch and plump eyes after autumn comes; pinching, namely topping, is the work of processing reserved main branches, basic branches or side branches; the pinching is determined according to the cultivation purpose and method, the growth type of the variety and the like; when the reserved main trunk, basic branch and side branch grow to a certain number of fruit ears and leaves (length), the growing points at the top end of the main trunk, the basic branch and the side branch are removed (the self-capping main stem does not need to be pinched); the pinching can control the heightening and the growth of the pinching, which is beneficial to the thickening growth and the acceleration of the fruit development;
s2, continuous trimming: and then pruning measures and methods that the height of the preserved fruit main branches reaches 2.5 meters and the branches are short are adopted every year, the fruit is bloomed and fruited in the 2 nd year, and a large number of fruiting periods are started in the 3 rd to 4 th year.
Example 2:
the invention provides a method for pruning a cupped natural tree shape of a pear tree, which comprises the following specific operation steps:
s1, trimming in the spring of the first year;
s1.1, final singling: according to the natural growth habit of the pear trees, after the trunk of the nursery stock after field planting grows to the length suitable for pruning, 5 new shoot branches growing upwards are reserved at the top of the trunk of the nursery stock after the nursery stock germinates in spring, the suitable pruning length of the trunk of the nursery stock after field planting is set to be 65cm, and the position of the new shoot branch reserved for upward growth is set to be more than 50cm of the trunk of the nursery stock; bud carving treatment is carried out on the 5 remained new shoot branches growing upwards; before sprouting in spring, cutting to xylem by a knife at a place 0.5cm above the sprout of the young shoot; the purpose is to lead the nutrients at the root of the tissue to flow back, promote the carved buds to germinate and grow into new branches, and then strengthen the water and fertilizer management and promote the rapid growth of the nursery stocks;
s1.2, one round of thinning: as shown in FIG. 2, in the rapid growth period of young shoots in month 6, the upright young shoots with the strongest growth potential are basically thinned, and finally 4 upright young shoots are reserved as the result of uniform and natural growth of main branches; the main branch thinning criteria for retention results were: thinning out the young shoots without branch strips or with few branches, and reserving the young shoots with more branch strips as fruiting main branches;
s1.3, pinching: as shown in fig. 1, pinching of the top end of the young shoot promotes lignification of the branch and plump eyes after autumn comes; pinching, namely topping, is the work of processing reserved main branches, basic branches or side branches; the pinching is determined according to the cultivation purpose and method, the growth type of the variety and the like; when the reserved main trunk, basic branch and side branch grow to a certain number of fruit ears and leaves (length), the growing points at the top end of the main trunk, the basic branch and the side branch are removed (the self-capping main stem does not need to be pinched); the pinching can control the heightening and the growth of the pinching, which is beneficial to the thickening growth and the acceleration of the fruit development;
s2, trimming in winter in the second year;
s2.1, as shown in figure 4, ring cutting bud: in spring of the next year, before the pear tree germinates, the branch retained in the step S1 is annularly cut by half a circle at a position 0.5cm above a bud eye by using a small hacksaw blade or a bud grafting knife, and the annular cutting depth reaches the xylem of the branch; when the position of the ring cutting bud is selected, the 2-4 bud eyes at the base of the branch can not be cut circularly, and the 2-4 bud eyes at the top of the branch can not be cut circularly;
s2.2, as shown in figure 3, two rounds of thinning out branches: all branches with the lengths of the overgrown branches above the back, below the back and on two sides exceeding 30 cm are thinned, the thickness of the branches on the reserved fruiting main branches is directly thinned to reach 50% of that of the fruiting main branches, and the reserved fruiting main branches are all medium-short fruiting branches;
s3, continuous trimming: and then pruning measures and methods for retaining fruit bearing main branches to reach the height of 2.5 meters and cutting short branches are adopted every year, the fruits are bloomed and bearing the fruits in the 2 nd year, and a large number of fruiting periods are started in the 3 rd to 4 th years.
Example 3:
the invention provides a method for pruning a cupped natural tree shape of a pear tree, which comprises the following specific operation steps:
s1, pruning in spring of the first year;
s1.1, final singling: according to the natural growth habit of the pear trees, after the trunk of the nursery stock after field planting grows to the length suitable for pruning, 5 new shoot branches growing upwards are reserved at the top of the trunk of the nursery stock after the nursery stock germinates in spring, the suitable pruning length of the trunk of the nursery stock after field planting is set to be 65cm, and the position of the new shoot branch reserved for upward growth is set to be more than 50cm of the trunk of the nursery stock; bud carving treatment is carried out on the 5 reserved new shoot branches growing upwards; before sprouting in spring, cutting to xylem by a knife at a place 0.5cm above the sprout of the young shoot; the method aims to promote the nutrient backflow of the roots of the tissues, promote the carved buds to germinate and grow into new branches, and then strengthen the water and fertilizer management and promote the rapid growth of the seedlings;
s1.2, one round of thinning: as shown in FIG. 2, in the rapid growth period of young shoots in month 6, the upright young shoots with the strongest growth potential are basically thinned, and finally 4 upright young shoots are reserved as the result of uniform and natural growth of main branches; the main branch thinning criteria for retention results were: thinning out the young shoots without branch strips or with few branches, and reserving the young shoots with more branch strips as fruiting main branches;
s1.3, pinching: as shown in figure 1, pinching the top end of the new shoot after autumn to promote lignification of the shoot and plump eyes; pinching, namely topping, is the work of processing reserved main branches, basic branches or side branches; the pinching is determined according to the cultivation purpose and method, the growth type of the variety and the like; when the reserved main trunk, basic branch and side branch grow to a certain number of fruit ears and leaves (length), the growing point at the top end of the main trunk, basic branch and side branch is removed (the self-top-sealing main stem does not need to be pinched); the pinching can control the heightening and the growing of the fruit, which is beneficial to the thickening growth and the acceleration of the fruit development;
s2, trimming in winter in the second year;
s2.1, as shown in figure 4, ring cutting bud: in spring of the next year, before the pear tree germinates, the branch retained in the step S1 is annularly cut by half a circle at a position 0.5cm above a bud eye by using a small hacksaw blade or a bud grafting knife, and the annular cutting depth reaches the xylem of the branch; when the position of the ring cutting bud is selected, the 2-4 bud eyes at the base of the branch can not be cut circularly, and the 2-4 bud eyes at the top of the branch can not be cut circularly;
s2.2, as shown in figure 3, two rounds of thinning are carried out: and all the branches with the lengths of the overgrown branches above the back, below the back and on two sides exceeding 30 cm are thinned out, the thickness of the branches on the reserved fruiting main branches reaches the thickness of the fruiting main branches by 50% of direct thinning out, and the reserved fruiting main branches are all medium and short fruiting branches.
Example 4:
the method of the embodiment 1-3 is respectively adopted to trim the pear orchard, two pairs of proportions are set in the same area, the traditional method is respectively adopted to trim and have no trimming treatment, other fertilization and management steps are the same, and the pear orchard is respectively cultivated in the same area by five groups, so that the following data are obtained:
as can be seen from the above table, the pruning cultivation method in the embodiment 2 is most appropriate, the pruning method is adopted to plant and cultivate the pear trees, the main stems of the cultivated pear trees are thick and uniform, the mechanical operation is convenient, and the cultivation and fruit picking of growers are convenient; the average yield of single pear plants planted by the method can reach 35 KG/plant, the per mu yield of the pears can reach more than 3500 KG/mu, the average single fruit weight of the pears can reach more than 6 two, the appearance of the pears can be ensured, and the benefit of fruit growers can be helped to reach the optimal value.
Finally, it should be noted that: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict; the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A pear tree cup-shaped natural tree pruning method is characterized by comprising the following specific operation steps:
s1, trimming in the spring of the first year;
s1.1, final singling: according to the natural growth habit of the pear trees, after the trunk length of the fixedly planted nursery stock is grown to a length suitable for pruning, after the nursery stock sprouts in spring, 3-5 new tip branches growing upwards are partially reserved at the top of the trunk of the nursery stock, and then water and fertilizer management is strengthened to promote the quick growth of the nursery stock;
s1.2, thinning branches in one round: in the rapid growth period of the young shoots in the 6 months, the upright young shoots with the strongest growth potential are basically removed, and finally 3-4 upright young shoots are reserved as the result, and the main branches uniformly and naturally grow;
s1.3, pinching: pinching the top of the young sprout to promote lignification of the sprout and plump eyes after autumn begins;
s2, trimming in winter in the second year;
s2.1, circularly cutting buds: in spring of the next year, before the pear tree sprouts, the branches remained in the step S1 are girdled for half a circle at a position 0.5cm above the eyes of the buds, and the girdling depth reaches the xylem of the branches;
s2.2, two rounds of thinning branches: all the overgrown branches with lengths exceeding 30 cm on the upper back, the lower back and two sides of the branches are thinned and removed on the branches, and the thickness of the branches on the reserved fruiting main branches is directly thinned and removed when the thickness of the branches on the fruiting main branches reaches 50 percent;
s3, continuous trimming: and then pruning measures and methods are adopted for keeping fruit bearing main branches to reach the height of 2.5-2.6 m and cutting short at the branch position, the fruit is bloomed and fruited in the 2 nd year, and a large amount of fruiting period is started in the 3 rd-4 th year.
2. The pruning method for the cupped natural tree shape of the pear tree according to claim 1, characterized in that: the suitable trimming length of the nursery stock trunk after field planting in the step S1.1 is set to be 60-70cm, and the position of the new shoot branch which keeps growing upwards is set to be more than 50cm of the nursery stock trunk.
3. The method for pruning the cupped natural tree shape of the pear tree according to claim 1, wherein: and in the step S1.1, bud carving treatment is carried out on the reserved 3-5 upward-growing young shoot branches.
4. The method for pruning the cupped natural tree shape of the pear tree according to claim 1, wherein: the result main branch thinning criteria retained in step S1.2 are: and thinning the young shoots without branch strips or with few branches, and reserving the young shoots with more branch strips as fruiting main branches.
5. The method for pruning the cupped natural tree shape of the pear tree according to claim 1, wherein: and 2.4, when the ring cutting bud position in the step S2.1 is selected, the bud eyes at the base part of the branch can not be girdled, and the bud eyes at the top part of the branch can not be girdled.
6. The pruning method for the cupped natural tree shape of the pear tree according to claim 1, characterized in that: and in the step S2.1, a small hacksaw blade or a bud grafting knife is selected as the middle ring cutting and bud carving tool.
7. The method for pruning the cupped natural tree shape of the pear tree according to claim 1, wherein: in step S2.2, it is ensured that all the remaining fruiting boughs are medium and short fruiting boughs.
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