Grape spring wound water is called "injury flow" and it is a common phenomenon. Generally, when the soil temperature reaches 6 to 10°C, the grape roots begin to move. The sap and organic nutrients in the tree body are transported along the xylem to various parts of the tree body. When they encounter the wound, they flow out of the tree. In severe cases, the tree drops like raindrops. Injury flow is very unfavorable to the growth and development of grape in spring, and attention should be paid to prevention and treatment.

The specific measures are as follows:

1. Control tree potential. Wangshu suffered heavy traffic and weak trees suffered light traffic. In the production process, fertilization should be controlled scientifically; watering should be completed 10 to 15 days before the injury.

2. Select the appropriate trim period. It is best to prune leaves in late autumn or within 4 weeks before the grape injury.

3. Avoid mechanical damage.

4. Injury flow treatment. One is to burn a hot wound, which promotes the formation of "dryness." The second is lime plaster method. The third is the thin film dressing wound method.

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