The method of removing part of bark or xylem that affects the growth of branches or trunks from branches or trunks with a knife or scissors is called carving. Incision cuts off a part of the conducting tissue of phloem or xylem, which hinders the downward transportation of nutrients and the upward flow of juice. After the branches or branches of plants are cut off, in order to heal, nutrients accumulate in the cut-off parts, and at the same time, due to the blockage of the wound. Nutrients are mainly transported upward from the roots, which absorb water, mineral nutrients and a small amount of organic matter, and can store nutrients and synthesize organic matter, especially cytokinin, gibberellin and auxin. Moreover, nutrition always comes from or accumulates under the cut, affecting the buds or branches above and below the wound. When cutting at the top of a bud or branch, nutrients accumulate under the incision, which can stimulate the growth of the bud or branch under the incision. When the wound is cut under the bud or branch, nutrients still accumulate under the wound, which inhibits the growth of the branch or bud above the wound. The application of carving injury in seedling raising is mainly in the lack of branches. In order to promote the emergence of branches, we can carve on the top of the bud to accumulate nutrients on the bud, promote the growth of new branches and make up for the missing branches. You can also suppress branches or groups of branches by carving. Seedlings are seedlings with roots and stems.

All seedlings cultivated in the nursery, regardless of age, are called seedlings before they leave the nursery. Seedling types: seedlings, asexual seedlings, transplanted seedlings and bed-protecting seedlings. Seedlings can also be classified according to trees and shrubs. Generally, there are many trees and shrubs in the north and shrubs in the south, which are mainly caused by the growing climate. Seedling: a seedling with a root system and a seedling trunk. All seedlings cultivated in the nursery, regardless of age, are called seedlings before they leave the nursery. Seedling types: seedlings, asexual seedlings, transplanted seedlings and bed-protecting seedlings.

?