The pruning of potted ornamental fruit trees can refer to the pruning method of field fruit trees and the method of branch treatment. According to the needs of potted ornamental fruit trees, several pruning methods must be applied to adjust the contradiction between growth and fruit. In winter, go weak and stay strong, and promote growth; Cut lightly and stay more, go strong and stay weak, and the growth rate slows down. In order to increase the number of branches, you can cut more branches and less sparse; Reduce the number of branches, sparse and cut less, and adjust the growth intensity by using the branch angle and the direction of bud retention. In the treatment of branches, raw branches, whorled branches, crossed branches, dense branches and parallel branches should be cleaned first, and then cut or tied. The main methods are: (1) horizontal "S" bending method to bend the branches horizontally into an "S" shape, so that the branches become oblate "flat pieces". Generally, brown silk is used to bend branches one by one according to the main branch and side branch groups. (2) Two-bend and Half-transverse bend branching method, that is, the place where the main branch is horizontal or slightly below the level is tied with a half-bend, which is called a positioning bend, and then the first two bends are tied. The arc of the first bend is about 150, and that of the second bend is 130. For small lateral branches or branches, thinning or short cutting can be carried out, and then the branches can be trimmed according to the fan-shaped elevation of 150. (3) The method of rolling branches and bending, where the tree is suspended, bends the branches and bends them. The bending shapes of branches are wave vertical bending, wave horizontal bending and wave vertical bending. (4) Trimming curved branches, using directional pruning method, according to the requirements of ornamental fruit trees, such as shape, position, size and distance. To form antlers (branched upward, one is long and one is short) and crab claws (branched downward, one is long and one is short), pay attention to the position and directionality of buds. (5) Screen view: first, the plane frame (bamboo, wood, lead wire, etc. ) stand on the surface of the basin, and then distribute the branches on the frame according to the designed shape, such as zigzag, V-shaped, W-shaped, fan-shaped and braided. After several years of weaving and curing, the basin was removed from the frame. (6) Folding branches: winding the treated branches with appropriate lead wires, and then breaking them. If you want to fold continuously, you can fold branches horizontally or vertically, but one plant can only fold one or two branches. If the bending radian is large or even drooping, it is called hanging branch type. (7) Exposing roots, which is an important part of potted ornamental fruit trees. Dew root is dew root, which has both artistic beauty and physiological function. Exposing roots mainly begins after seeds are sown and emerge, but it can also be made of pile materials through artistic processing.

Cultivation Technology of Rooting Tree Bonsai

(1) bouldering method: select fruit trees with long and thick lateral roots or many aerial roots, enclose three or five thick lateral roots with stones of suitable size and shape, bind them with brown hemp, plant them in pot soil, cover them with moss blocks and brown skin, and maintain and manage them. After a long time, roots and stones will be replaced in a small pot. (3) The soil removal method is a simple method to remove the topsoil on the surface of the basin year by year without replacing the basin. In Xia Zhishi, every spring, the topsoil is removed by 2 ~ 4 cm, and some roots are exposed on the soil surface after two or three years. (4) Flushing method: when watering, consciously raise the water potential, gradually flush the topsoil, and then go to the basin after the roots are exposed. (5) Packaging method: choose fruit trees with long and soft roots, and insert the roots into a bun when planting, but don't bend it too tightly to avoid long-term knots. When planting, it is buried in the soil. After several years of cultivation and gradual rooting, it is put in a small pot and exposed to the soil. ⑥ Root-burying method: The roots of fruit trees such as Lycium barbarum, tiger thorn and ginkgo biloba are prone to tillering. Take its 0.5 ~ 2 cm thick root, which is 10 ~ 20 cm long, bend it with lead wire and plant it flat in the basin soil. After adventitious buds or roots grow, leave 5 ~ 6 branches for pruning. After a few years, the roots will be thick and bare. ⑦ layering is a method of exposing roots with branches instead of roots. Select a few long branches in the higher position, tie them tightly with lead wire, bend them near the roots, and carry out layering. After several years of cultivation, the branches will "take root and sprout". (8) Grafting method: two seedlings of the same variety are cut into a pot for docking, after grafting, a crown is cut into a fruit tree with one crown and two roots, and then the roots are lifted. Pet-name ruby seedling method, at present, domestic fruit tree bonsai and potted fruit trees pay insufficient attention to the ornamental value of roots, and there are not many good bonsai for ornamental roots and fruits. Fruit trees should take root from the seeds, that is, after the seeds are sown, when the seedlings grow to 10 ~ 20cm, they should be dug out. When digging, pay attention to digging bigger and leaving more lateral roots, and then replant them in the ground. When planting, plant it obliquely or obliquely and then bend it, so that more lateral roots can grow. At this time, it is generally necessary to have high temperatures and strong sunshine in June and July. When digging seedlings in winter, the pond should be big and deep, so as to dig out all the roots. Then, according to the needs of plastic surgery, part of the root system, too long root system, pests and diseases are trimmed off, and all the aboveground parts are cut off while rooting. Apply sufficient base fertilizer to the nursery, and compost 3 ~ 5 kg per plant. Plant the pruned fruit trees shallowly on the ground, exposing the bare roots as much as possible. After germination, select suitable branches and buds to make them grow according to the needs of plastic surgery, and then graft excellent varieties.