Emergency Medical Techniques for Grape Injury Before grape sprouting, due to too late pruning or mechanical damage, it will make it difficult to heal the transpiration tissue of the shoots, sap will emerge from the wound, and a lot of nutrients will run away. Injury is light, grape production decline; in serious cases the whole plant died. Grape infestation generally occurs from late April to bud germination, which lasts for more than a month. According to the measurement, per kilogram of grape injury fluid contains 1.2 grams of dry matter, of which about 2/3 is sugar and nitrogenous compounds, and 1/3 is minerals such as potassium, calcium and phosphorus. A new cut of a grape vine spread out 630 ml of bleeding fluid overnight. Vine injury occurs in the vines. The following emergency measures can be taken to rescue them: (1) Using 6-8 cm square plastic film or two layers of plastic film to wrap the cuts of wounds and tighten them with thin cords. It is airtight. If the injurious flow occurs in the middle of the dendrite, a 2 cm wide plastic strip can be used to tightly bind the injurious area to the wound and use the impervious fluid as the degree. (2) Rosin hot-coated rosin is heated and melted in a container, and then it is applied on the wounds of the grape vines; or it is dripping on the wound while directly melting the rosin with a hot iron, and then repeatedly wound on the wound with a soldering iron. Place a few pieces and let rosin melt to increase penetration. If the amount of rosin is too small, you can pick some more and continue to brand it. After the rosin cools and solidifies, the wound flow can stagnate.
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