A double-arm forward type tree shape for mechanized operation of zanthoxylum bungeanum and a construction method thereof

By adopting a double-arm parallel tree shape and an A/B branch rotation and renewal system, the problems of difficult mechanized operations, yield fluctuations caused by post-harvest pruning, and fruit damage in Sichuan pepper production have been solved, achieving efficient and stable mechanized harvesting and improved fruit quality.

CN122162659APending Publication Date: 2026-06-09HANYUAN COUNTY AGRI & RURAL AFFAIRS BUREAU +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANYUAN COUNTY AGRI & RURAL AFFAIRS BUREAU
Filing Date
2026-04-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The production of Sichuan peppercorns suffers from problems such as low efficiency and high cost of manual harvesting, difficulty in mechanized operations, and yield fluctuations and fruit quality damage caused by post-harvest pruning, which cannot be effectively solved by existing technologies.

Method used

The tree adopts a double-arm ascending tree structure and an A/B branch rotation and renewal system, including the design of an upright trunk, multiple layers of main branches and fruiting branch groups, combined with physiological regulation methods, to form a regular canopy structure and a stable fruiting branch renewal cycle.

Benefits of technology

This has enabled efficient and stable mechanized harvesting, improved fruit quality and yield, reduced labor intensity and costs, prevented fruit damage, and ensured stable production year after year.

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Abstract

The application discloses a kind of for mechanized operation red flower jiao double-arm forward type tree shape and its construction method, belong to economic forest cultivation technical field.The tree shape includes main stem and multiple layers of main branch, and each layer of main branch is formed into "double arms" by two main branches extending horizontally in opposite directions along the row.Resulting branch groups consisting of first fruiting branches and second fruiting branches are distributed on the main branches.The construction method comprises the following steps: after fixing the main stem, layer-by-layer culture and horizontal fixation of each layer of main branch are performed from bottom to top;resulting branch groups are cultured on the main branches;pruning and harvesting are performed using A / B branch rotation renewal system, i.e., first fruiting branches are harvested in the current year, and second fruiting branches are cut short, and in the next year, second fruiting branches are used for fruiting of sprouts, and the cycle is rotated.The application combines regular hedge tree shape with rotation renewal system suitable for late-maturing characteristics of red flower jiao, adapts to mechanized operation, and simultaneously achieves comprehensive effects of improving fruit quality, stable yield for consecutive years and reducing production cost.
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Claims

1. A double-arm, sequential tree-like structure for Sichuan pepper cultivation used in mechanized operations, characterized in that, include: The main trunk that stands upright (1); On the main trunk (1), at least three main branches are arranged along the height direction, and the vertical distance between adjacent main branches is 60 cm. Each of the main branch layers includes two main branches (2), which are located on the same horizontal plane and extend horizontally in the opposite direction of the planting row; On each of the main branches (2), multiple groups of fruiting branches are evenly distributed along its length; Each set of fruiting branches includes a first fruiting branch (3) and a second fruiting branch (4), both of which sprout from the side or underside of the main branch (2) and grow obliquely upwards; The first resultant branch (3) and the second resultant branch (4) are arranged adjacent to each other on the main branch (2), and the distance between their bases is 10 cm.

2. The double-arm sequential tree shape for mechanized operations of Sichuan pepper trees according to claim 1, characterized in that, The tree shape has four or five main branch layers.

3. The double-arm, sequential tree-shaped structure for mechanized operations of Sichuan pepper trees according to claim 1, characterized in that, Five to six groups of fruiting branches are set on each of the main branches (2).

4. The double-arm, sequential tree-like structure for mechanized operations of Sichuan pepper trees according to claim 1, characterized in that, The main branch (2) is fixed to the support wire (5) arranged along the row direction by a binding member.

5. The double-arm, sequential tree-like structure for mechanized operations of Sichuan pepper trees according to claim 1, characterized in that, The vertical projection width of the tree crown does not exceed 200 centimeters.

6. A method for constructing a bi-armed, sequential tree structure for Sichuan pepper as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Planting and stem cutting: After planting the red pepper seedlings, cut off the top of the main stem (1) 50 cm from the ground; S2. Layered cultivation of main branches (2): On the main trunk (1), select and cultivate main branches (2) layer by layer from bottom to top; for each target main branch layer, at the preset height position of the layer, select two strong buds growing in the opposite direction along the planting row, remove the remaining buds, and cultivate the two selected buds into a pair of main branches (2) of the layer; when the pair of main branches (2) grow to the lignification level, make them extend horizontally along the row by pulling the branches and fix them on the support wire (5) at the corresponding height; repeat this process until at least three main branch layers are formed; S3. Cultivate fruiting branch groups: On each main branch (2), select buds at intervals to cultivate as fruiting branches; define two adjacent fruiting branches as a group of fruiting branches, and mark one as the first fruiting branch (3) and the other as the second fruiting branch (4); control the length of the fruiting branches to 80 cm; S4. Rotation and renewal of fruiting branches: During the fruiting period, the A / B branch rotation system is implemented; specifically: In the first year, the first fruiting branch (3) is retained as a fruiting branch, and the second fruiting branch (4) is heavily pruned, retaining two buds at its base; when the red pepper matures and is harvested, the entire first fruiting branch (3) and the fruiting fruit on it are cut off above the dormant bud at the base of the first fruiting branch (3); In the second year, the new branches sprouting from the second fruiting branch (4) pruned in the previous year become fruiting branches, and the new branches sprouting from the dormant bud at the base of the first fruiting branch (3) pruned in the previous year are used as renewal branches and heavily pruned; thereafter, the rotation is carried out in this manner every year.

7. A method for constructing a double-arm, sequential tree structure for Sichuan pepper according to claim 6, characterized in that, In step S2, the branch pulling operation makes the angle between the main branch (2) and the trunk (1) 90 degrees.

8. A method for constructing a double-arm, sequential tree structure for Sichuan pepper according to claim 6, characterized in that, In step S2, when cultivating the main branches (2), the first layer of main branches (2) is cultivated starting from a height of 50 cm above the ground, and then the next layer of main branches (2) is cultivated every 60 cm.

9. A method for constructing a double-arm, sequential tree structure for Sichuan pepper according to claim 6, characterized in that, In step S3, when selecting fruiting branches, priority is given to selecting buds that sprout from both sides of the main branch (2).

10. A method for constructing a double-arm, sequential tree structure for Sichuan pepper according to claim 6, characterized in that, In step S3, the length of the resulting branches is controlled by pinching off the tips.