Grapevine Trellis Training Angle for Even Scaffold Branch Growth
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Solution Overview
Problem
The T-shaped VSP training system for grape cultivation is problematic due to its emphasis on a specific shape, leading to difficult harvesting, damage to primary scaffold branches, and the need for additional work like bud notching and chemical spraying to promote even secondary scaffold branch growth, resulting in poor workability and potential low-quality grape production.
Innovation Solution
The method involves bending the trunk of a young grapevine at a predetermined angle (40° to 50°) before attachment to a trellis, allowing the primary scaffold branch to be attached to the closest line, thereby avoiding shape-related damage and eliminating the need for bud notching and chemical spraying, promoting even secondary scaffold branch growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the T-shaped VSP training system is used, then the grapevine structure is standardized, but the primary scaffold branches are forcibly bent causing damage
Solution Approach 1:
The trunk is bent at a predetermined angle (40° to 50°) before attachment to the trellis, so that when the primary scaffold branch is attached to the first line, the predetermined angle automatically becomes the training angle. This preliminary action eliminates the need for forced bending of the primary scaffold branch while still achieving the desired T-shaped structure.
2Device complexity
If the T-shaped VSP training system is used, then the training structure is simplified, but additional work such as bud notching and chemical spraying is required
Solution Approach 1:
The trunk is pre-bent at the predetermined angle before attachment, which automatically establishes the correct training angle when the primary scaffold branch is attached to the first line. This preliminary configuration eliminates the need for subsequent bud notching and chemical spraying operations, significantly improving workability.
3Stability of the object's composition
If the T-shaped VSP training system is used, then the training method is standardized, but secondary scaffold branches grow unevenly
Solution Approach 1:
By pre-bending the trunk at a predetermined angle (40° to 50°) before attachment to the trellis, the training angle is automatically established when the primary scaffold branch is attached to the first line. This preliminary action creates balanced growth conditions that promote even development of secondary scaffold branches throughout the vine structure.
Data Source
AI summary
In a grape cultivation method providing improving workability, posts are provided in a standing manner in the ground. Then, a plurality of wires are attached at predetermined intervals in a direction orthogonal to the posts. As a result, a trellis is constructed. In attaching a young grapevine to the trellis, first, a trunk of the young grapevine is bent at a predetermined angle θ in advance. Then, a primary scaffold branch of the young grapevine is attached to a first line among the plurality of wires so that the predetermined angle θ becomes a training angle.