Fruit tree autumn grafting technology

Grafting method commonly used in the growth of fruit trees, spring, summer and autumn can be carried out, the most appropriate in autumn, the general survival rate of more than 90%.

Early budding is too early, budding is not yet fully developed, and rootstocks are in a prosperous stage. The accumulation of nutrients in the body is low, the bud survival rate is low, and the buds are prone to freeze damage after sprouting in the year; buds are too late to be easily peeled and then healed. Difficulties, low survival rate.

The buds in the middle of the shoots are selected to be filled with buds and then used as buds. Take care to protect the bud pad or take a small amount of xylem when cutting buds. The buds are generally cut into shields or ring blocks, and the buds are 1.5 to 2 cm long. The size of the buds in the ring block shape depends on the size of the rootstock and the thickness of the buds.

When grafting, rootstocks are first processed and then buds are cut. Using "T" shaped bud connection, first cut the "T" shaped mouth 3 to 5 centimeters away from the ground, the depth to see the xylem, can be peeled off the rootstock bark is appropriate; then use the tip to carefully peel the rootstock bark, Shield-shaped budding with a petiole quickly embedded. After the earth is 10 cm high. 10 to 15 days after the plane open soil, check the survival situation. If the buds are fresh and light green, the petioles touch and fall, indicating that they have survived, otherwise they do not survive and should be reconnected behind the rootstock.

After the management of budding seedlings, they will be cut 18 to 20 centimeters above the sprouting point after the spring of the spring to release the ligatures. 3 to 4 prunings in the summer, cut branches from the rootstock. When budding shoots grow to 8 to 10 centimeters, they are tied to live piles near the base; when they grow to 20 to 25 centimeters, they are tied again at the top. Until the grafting of lignification, cut off the live piles and continue to keep large seedlings in the field.