1 splitting in the rootstock to split a mouth, the scion will be inserted, so called splitting. Splitting is a major method of branching in the spring.

1) rootstock cutting. The rootstock in the bark straight without scar sawing, with a knife to cut the wound, and then in the middle of the rootstock to split a depth of 4-5 cm vertical split.

2) scion cutting. Scion left 2-3 buds, in its lower left and right each cut 1 knife, forming a wedge. Make the scion lower wedge-shaped outer and rootstock formation layer connected. The inner side is not connected. Scion cut length 4-5 cm. cut surface should be flat, the angle should be appropriate, so that the interface of the rootstock up and down can be and scion joint.

3) Jointing. The key is to make both sides of the formation layer alignment, preferably so that the scion outer two sides of the formation layer relative. If you can't align both sides, keep one side of the formation layer aligned. Be careful not to insert all the scion's wounds into the split, to whiten 0.5 cm or more, in order to facilitate wound healing.

4) Wrapping. For medium or thin rootstocks, insert a scion in its split, (preferably wax-sealed), and then use a 4 cm wide, 30-40 cm long plastic strips to tie up the interface, bundling should be split, wounds and whitening all wrapped tightly, and bundled tightly.

2.2 Square grafting The buds taken in grafting are square-shaped, and the rootstock is also correspondingly taken on a square piece of bark, so it is called square budding. Square budding contact surface is large, for budding is not easy to survive walnut is more suitable, easy to sprout after grafting.

1) rootstock cutting. Grafting first than the length of the rootstock and scion incision, with a knife engraved mark. And then up and down, left and right each cut a knife, deep to the xylem, and then use the tip of the knife to pick out and set off the rootstock skin.

2) Jointing. Put the bud piece into the rootstock incision, so that it is up and down, left and right with the rootstock incision just closed. If the scion bud piece is smaller, that's fine: if the scion bud piece is too big to fit, it must be cut down to make it the right size.

3) Wrapping. Use plastic strips 1-1.5 cm wide and 30-40 cm long to tie up the interface, exposing the buds and petioles.

2.3 Double door budding and single door budding When grafting the bark on both sides of the cutting of the rootstock will be pried open, like opening two doors, so it is called double door budding; single door budding, just pry open the bark on one side of the cutting. The two other grafting methods are the same. Applicable to grafting more difficult to live varieties. After the grafting is active, it can be sprouted that year.

1) Rootstock cutting. Make the length of the bud piece and the length of the rootstock incision equal. The rootstock in the bark smooth up and down each cut l knife, so that the width of the appropriate more than the width of the bud piece. Then make a longitudinal cut in the center so that the incision is in the shape of an "I". In the case of a single door, make a longitudinal cut on one side, as deep as the xylem. And then pry the bark to form a double or single door.

2) scion cutting. In each of the scion buds around the l cut, remove the square shape of the bud piece.

3) Jointing. Put the scion into the cutting of the rootstock, for double door budding, that is, the left and right sides of the scion buds cover the scion buds; for single door budding, that is, the rootstock skin pry open, cover the scion buds, buds should be with the pry open the side of the buds against the tight.

4) bandage. With 1-1.5 cm wide, 30-40 cm long plastic strips, the bud pieces tied up, revealing the scion buds and petioles.

In addition, in the walnut tree grafted to life, scion after the leaf, "water" wound no longer out of the wound fluid, the need to use plastic strips to wrap the wound to promote the healing of the wound. Grafting can be contacted,