1. Spraying the tree with 100 times liquid tree protection can protect the temperature and humidity of the tree itself, keep warm and freeze, and improve the quality of winter flower buds. 2. Bundle the trimmed grape vines into bundles, and then wrap them with 1-2 layers of straw or sacks. Then cover the sawdust with a thickness of 15-20 cm. Cover the real plastic film with a layer of plastic film. Compaction. 3. Place the bundled grape vines on the ground after trimming, cover the straw on the branches, cover the soil 5-8 cm, and cover the grass with a layer of straw. When the temperature decreases from November to December, the water is continuously poured twice on the cover to make it freeze, thereby isolating the plant from the outside world and achieving the purpose of safe wintering. 4. Sand, membrane, leaf, and straw four layers of cold protection. Firstly, the sand is covered with 20 cm thick on the branches, and a layer of mulch is covered on the sand. A layer of corn leaves of about 10 cm is placed on the mulch, and 60 cm of corn stalks are pressed on the leaves to protect the vines and the membrane. Leaf encryption, straw warming effect. The first three layers of coverage should be carried out in mid-to-late October. The last layer should be carried out in the middle and late November after the freezing
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