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Grafting and Storage of Grape Seedlings
To improve the survival rate of grape seedlings, the following points should be noted in the process of lifting and storage in autumn: 1. Time for lifting seedlings. It needs to be carried out 10 days after the seedlings are defoliated so that the nutrition can fully return to the roots. 2, watering before raising seedlings. If the land is drowned before raising the seedlings, water should be poured once at the roots. After the soil is loose, raise the seedlings one by one to maintain the integrity of the roots and the varieties are not mixed. 3, graded strapping. Remove the injured seedlings from injury, sickness, and weak seedlings, and then grading them in bundles. Use 50 strains and 1 bundles as appropriate, and tie them tightly to prevent loss. 4, timely storage. Seedlings should be stored in time after they are lifted to avoid water loss and air drying. 5. Fill it with fine sand. It is best to use a ditch. The ditch depth is 50 cm. The length and width are determined according to the number of seedlings. After the ditch has been dug up, put a bundle of seedlings down the roots and put the shoots upside down into the ditch. Do not overtighten the tie to prevent injury to the heat and rot. It is necessary to fill the river sand that is oversized and sieved, and to fill the sand and move seedlings to fill the sand between the bale and seedlings. 6, the amount of watering. In the top of the seedlings, water is poured with a high pressure so that the maximum amount of sand can be poured into the bale, between the seedlings, once drenched, and avoid duplication to prevent bruising and rot. After watering, the seedlings are covered with 10 cm thick river sand. 7, pay attention to cold. When the temperature drops to -5°C, cover the grass to protect against the cold, depending on local conditions. When the temperature rises in the following year, remove the cold grass in time so as not to overheat and germinate. 8, pay attention to moisture. After seedlings emerge, they must be hydrated and managed before they are buried in the trenches, protected from the cold, and taken out of the storage ditch and planted. Whether water loss or not, apply water soaking for about 24 hours before planting, and planting after water is sucked up by seedlings is the basis for improving the survival rate. China Agricultural Network Editor