When the new shoots are used to make the shoots grow to a length of about 1 meter, they are picked up and tied horizontally to promote the sprouting of shoots. When the auxiliary tip is 20 centimeters long, the new shoot will be pressed into the furrow of 15 to 20 centimeters and filled with about 10 centimeters. When the new shoot is half lignified and the height is 50 to 60 centimeters, the ditch will be filled. In the summer, bracing and picking were performed on the laminations, and the pressed shoots were dug in autumn to divide several seedlings with roots.
One-year-old branches before the spring sprouting, the base of the plant is set aside as a layer of annual branches flat or tied, until the new shoots on the length of 15 to 20 cm when the new shoots, and then press the mother branches in the ditch, revealing new Tip. If it is a species that is not easy to take root, the first section of the mother branch must be cut or girdled before the tamping to promote rooting. After the layering, the soil is covered with shallow soil and the soil is gradually cultivated after the semi-lignification of the shoots, so as to facilitate the increase of the number of adventitious roots. After the fall, the pressed shoots are picked up and divided into several rooted seedlings.
Perennial vines are also used in the old grape growing areas and are also used in the autumn prune. First excavate a deep trench of 20 to 25 centimeters and place the old vines in the flat trenches. One to two years old dendrite emerges from the surface of the ravine, and the soil is overwinter. In the old rooting process, the old vines are cut off 2 or 3 times and new roots are promoted. After the fall, remove the old vine and divide it into independent rooted seedlings.
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