First, the grafting period: jujube trees with branches as well, high survival rate, rapid growth, results, early high yield, high efficiency. Spring jujube buds have just begun to sprout from the end of March until the end of July can be grafted. The best grafting period is 10 days before the Ching Ming Festival and 20 days after the Ching Ming Festival. Can be grafted that year, when the seedlings, the results can be flowered that year, the effect is extraordinary. Second, to prepare before: 1. Choose to marry the ground: you must choose the deep soil, fertile mountain, slope and terraced edge of the wild jujube tree on a piece of grafting, integrated management and protection, whether the meeting can not reach the bumper harvest The intended purpose. 2. Before the grafting, the tree selection should be carried out: the wild jujube trees are densely clustered, and there is no distance and no line. Grafting can be carried out according to the design requirements of 3-4m or 2-3m spacing, and the remaining ones are all cleared of planing. 3. Prepare the scion: Use those varieties of rare, exotic, and extra-large jujube to graft and cultivate high-yield orchards. From the features of the varieties, good yield and good performance, no pests and diseases, strong jujube trees grow strong second branches or dates. Head scion. Prior to grafting, it should be cut into sections, each of which must have a robust jujube or a robust bud. These slivers are then placed in a molten paraffin bath to seal the wax. The wax-sealed scion is bagged into a carton and stored in a cool place for use. Third, grafting methods: 1. Xiaomiao abdominal connection method. The rootstock diameter is in the range of 0.5-1.5cm and can be grafted by abdominal connection. When grafting, the lower end of the joint is cut into a 5cm bevel, and a small 2cm-long bevel is cut at the lower end of the bevel. The cutting method of the anvil cuts into the blade 7-8cm from the ground, cuts down a 6cm long interface, inserts the big face of the scion into the interface, and makes the forming layers of the scion meet each other. OK, then cut the root stocks above the interface, and use a 2-2.5cm wide plastic strip to tightly seal the interface. 2. Plug connection. Any rootstock diameter greater than 1.5cm can be grafted using this method. First cut a 5cm-long, horse-shaped bevel at the lower end of the scion, and then lightly cut a knife on both sides of the bevel to reach the phloem. Saw the rootstock at the grafting site, flatten the anvil surface, pick the formation layer with the tip of the knife, and insert the scion immediately afterwards. Finally, securely seal the interface with the anvil with plastic sheeting. Fourth, pay attention: 1. Wax seal scion operation, the speed of the wax liquid is faster, the wax liquid temperature should be maintained at 100 °C. The scion used for grafting in the spring can be collected back into the sealing wax one week in advance or half months and stored in a cool place buried with wet sand. It can be used until mid-to-late May. Hardwood scion in summer, it is best to use, with mining, with the closure, with access, if the shelving time is too long will affect the survival rate. 2. Grafting knives should be sharp, so that the cutting surface, smooth, fast operation, lashings should be careful and rigorous. 3. In order to ensure good graft survival rate and growth and development, it is necessary to remove the sprouts that germinate on the rootstocks after grafting, release the binding bandages on the interface at a proper time, set up the pillars for protecting the sprouts, avoid the grafted seedlings being blown by the wind, and do Good pest control and valerian work.
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