Pulling branches can be done within a single year, but the best results are achieved during summer and autumn. This is because, compared to branches in spring and fall, branches that are pulled in summer and autumn do not sprout new growth from the back. During these seasons, the branches are softer, making them less likely to split when bent. Additionally, pulling the branches restricts nutrient flow, which helps accumulate more nutrients throughout the tree, promoting better flower bud development.
Branches should typically be angled at 90 degrees or laid horizontally along the ground. Stronger, more vigorous branches should be slanted or given a drooping shape. The larger the main branch, the greater the angle required to balance the tree's overall vigor and maintain its structure.
The method of pulling branches involves selecting 1- to 2-year-old branches and "taking before pulling." That means using your left hand to hold the base of the branch and your right hand to gently bend it from the back toward the tip. Then, carefully pull the branch open to the desired angle and adjust its position. For larger main branches, you may need to use three saw cuts or make an opening in the wood to help achieve the desired angle.
When pulling branches, there are several important considerations:
1. The length of the branch being pulled should be more than one meter. If the branch is too short, alternative methods such as cutting, pressing, or not pulling at all can be used to manage the angle.
2. It's best to start pulling branches on a young Wang tree that is 2 to 3 years old. Don’t try to complete this process all at once. Instead, carry out the work gradually over multiple years, combining it with pruning and shaping for optimal growth and fruiting.
3. After pulling the branch, place a stick on the back side to help develop medium and small branch groups. If any branches become too dense, remove them promptly to avoid overcrowding.
4. Choose the right spot to tie the branch. Poor placement can lead to a narrow base angle, causing the branch to sag or bend unnaturally, which can affect its future growth and development.
5. When pulling branches, ensure they are evenly spaced and do not get bundled together. Overlapping branches can cause poor air circulation and reduce light penetration, negatively impacting the tree’s health and productivity.
Pelvic Plate
Due to the irregular characteristics of the pelvic structure, the choice of internal fixation is diverse.
For patients separated symphysis pubis, a 2 or 4 holes, 4.5 or 3.5mm diameter dynamic compression plate or reconstruction plate can be used and fixed with full-thread cancellous bone screws.Another method of fixation is lag screw fixation. In patients with new sacroiliac joint dislocation with a forward approach,firm fixation can be achieved by using 2holes 3.5mm dynamic compression plates through the front of the sacroiliac joint. The posterior approach can also be used to insert 6.5mm lag screws into the sacral wings or hollow cancellous bone screws with interosseous compression for firm internal fixation. If available, the fracture may be fixed with 3.5mm or 4.5mm pelvic reconstruction plates and appropriate full-thread cancellous bone screws.
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