In adult grapevines, a condition known as "eye blinking" often occurs, which refers to the phenomenon where certain buds become inactive and fail to produce new shoots. This issue can cause confusion in the tree's growth pattern and significantly weaken its overall vigor, making it difficult for the plant to regenerate effectively.
The causes of "eye blinking" in grapevines have been studied extensively. One common reason is that young vines are too long, with underdeveloped new shoots and insufficient shoot growth. Additionally, if the vine is not properly pruned or fertilized, especially during the later years, poor nutritional conditions may lead to this problem. Another factor is an imbalance in fertilizer application—either too little or excessive nitrogen—resulting in weak vascular tissues and reduced leaf function, which contributes to the "blinking eyes" condition. Moreover, overly dense foliage or excessive fruit load can block sunlight, preventing proper branching and causing the same issue.
To manage "eye blinking," it is essential to first understand its root causes and then apply targeted solutions based on the specific conditions of each vine. During the sapling stage, organic fertilizers should be the primary source of nutrients, and overuse of nitrogen should be avoided. In autumn, after harvesting, organic fertilizers should be applied, while topdressing should focus on the first half of the year, especially during the rainy season. It’s important to avoid applying available nitrogen during heavy rains. Drainage must also be maintained in the vineyard to control water levels during the late growing season.
From April to June, when the vine is actively growing, it is recommended to spray a solution of 0.3% urea and 0.2% potassium dihydrogen phosphate every ten days. This helps support bud differentiation and fruit development. Adjusting the crop load is also crucial—prune the fruit clusters appropriately, avoid excessively long shoots, and maintain a balanced number of shoots. Remove excess leaves, thin out branches, and prune overlapping or leggy shoots to ensure good light exposure and proper bud development.
For weak shoots that emerge from the affected areas, keep 2 to 3 nodes and cut them back to encourage strong growth the following year, helping to rejuvenate the vine. If the shoots are thick, consider pinching the tips and training them into productive mother shoots. With consistent care and proper management, the problem of "eye blinking" can be effectively controlled, leading to healthier and more vigorous grapevines.
Upper Limb External Fixation
The wrist joint external fixation fully considers the physiological characteristics of the wrist joint and the structural stability of the biomechanics, so that the metacarpophalangeal joint can be completely bent freely, and the tendons and ligaments of the fingers and wrists can be relatively relaxed. Moreover, the insertion method, length and stress of the bone traction needle are also considered, and the overall force of the bone traction needle is relatively uniform.
The ulna radius external fixator fractures is relatively simple, generally unilateral fixation, or simple combination fixation, generally should not fix the upper and lower radioulnar joints. Radial external fixation stenting has a good effect on the treatment of fracture. Premature removal after surgery is not appropriate, which is easy to cause dislocation and affect fracture healing. Functional exercise can be carried out gradually after four weeks of plaster external fixation, when the wrist joint function should gradually return to normal.
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