Seedling winter root technology
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1, 劈 connection method. If the branches of the root are sturdy, you can use the niche method. The two sides of the shoots were cut to a 3.3-cm bevel, and they should be captured thinly and cut into the incisions of the roots. 2, inverted connection method. If the shoots are finer than the roots, use a chamfering method. First cut the branch from the center to a vertical incision 3.3 centimeters deep, then cut the root into two 3.3 centimeter bevels and insert the root into the incision of the shoot. Regardless of the type of connection, align the layers of the root system and then seal the wound with yellow mud or wax. When there is a large number of grafts, the seedlings will be planted in the trenches. The depth of the trench is about 1 meter, and the width is about 0.5 meters. The length of the valve can be determined according to the number of seedlings. The bottom of the ditch was covered with a layer of wet sand and covered with 3.3 cm of fine sand. If there is a large number of grafts, they can be buried in wet sand in the vegetable cellar. In the spring of the year following the “grain rain†festival, the semi-seedlings will be planted in the nursery. This method is very suitable for grafting mulberry, apple, pear trees, and its survival rate is about 85%.