Outcropping is also called root lifting, that is, to lift a part of the thick and abundant root system on the upper part of the root system out of the soil surface. The first purpose is to show its old and unsophisticated, and the second is to make part of the root hanging claw to expose the beauty of its posture. The method is as follows: .
It is also called basin changing method. This method is combined with basin changing. The root system is raised a little year by year for planting, and then part of the soil is washed away with water, gradually exposing the upper root system to the soil surface. If necessary, the exposed roots shall be treated according to the requirements of the picture. If the root system is too dense or redundant, it should be deleted, or the distribution of coarse roots should be adjusted properly.
The trees are planted in a deep basin, the lower part is filled with fertile soil, the upper part is filled with river sand, the absorption roots of plants are introduced into the lower part, then the upper river sand is removed year by year, the coarse part of the main side roots are exposed, and then transferred into the ordinary basin, the upper roots are exposed. The root finishing is the same as above.
This method is applicable to tile or other materials around the upper four sides of the flowerpot, such as thin board and plastic sheet, so as to improve the height of the flowerpot. When planting trees, fill the upper part with soil or the lower part with river sand. When the trees absorb the root system and extend to the bottom, gradually remove the upper soil or river sand and take down the tiles to expose the upper root system. Shanghai bonsai creates the same way of removing the cover.
Banyan and other tree species that are prone to air rooting can be artificially induced to air rooting by cutting a circle with metal wire at the branch where the air rooting is to take place and cutting off the channel for downward nutrient delivery. Make the nutrients gather here. Then tie a gauze strip outside the metal ring, and make it droop to the basin surface. Then put a bowl of clear water on the basin surface, and immerse one end of the cloth into the clear water. The water seeps up to the metal ring through the sand surface, creating a high humidity environment, which makes the drooping air take root. It should also be noted that the metal ring should be cut off in time before falling into the cortex to avoid falling into the cortex, affecting the growth and viewing of trees.
When young trees are in shape, the main root is cut off to promote the occurrence of lateral root, and the lateral root is extended to adapt to cultivation in shallow basin. If the larger tree has a thick root system, the root system can be fixed with wire, and the shape is determined according to the shape of the basin, and planted in a shallow basin. The root system can also be spread out horizontally on a long board and planted in the soil together with the board, so that the root system can be extended horizontally. The root system cultivated by this method can be suitable for planting in a shallow basin only 1-2cm deep. This method is also used for bonsai of Shanghai school.
Attached stone is to attach the root system of the tree to the gap of the stone, or to penetrate the root system into the cave of the stone, forming the form of the tree holding the stone and passing through the stone, which is called "attached stone type". Choose good plant materials and stone materials when modeling. Plant materials should have developed lateral roots and be long. The stone should have a certain momentum, good texture, and many cracks. The root system of the tree is fixed in the gap or buried in the soil through the cave, and then the root system of the stone attached part is gradually exposed to the soil surface together with the stone by the method of raising the root. The appropriate pot ware is planted to form the stone attached bonsai.
