Pu tree: also known as Pu elm, huangguo pu, white hemp seed, elm family, pu tree genus, deciduous tree. The length of the simple tree is faster, the management is extensive, and it can be overwintered in the north and south, the trunk of the tree is straight, the branches are delicate, the roots are bent, the curve is simple, the layers are towering, and the posture is quaint and wild. The leaves are dark yellow in autumn, and the leaves fall in winter, and the ancient and rough bark of the trees in the spring is combined with the green leaves and vines in the spring, showing the tenacity of life.
Growth habits: light-loving and shade-tolerant. Suitable for warm and humid climate, the adaptability of the simple tree is strong, the soil requirements are not strict, like thick and moist loose soil, drought and barrenness, water and moisture, mild salinity. Strong adaptability, deep roots, strong germination, wind resistance. Resistant to soot and pollution. It grows faster and has a long lifespan. There are so many advantages, so the tree is very suitable for beginners to cultivate.
Adaptable and easy to cultivate
Pile selection and planting: The simple tree is commonly distributed wildly in the Hills and Low Mountains and Valleys of the Yangtze River Basin and its south area, its germination is strong, easy to root, it is advisable to dig in the autumn or spring when the temperature rises in February and March, select the old pile with a strange attitude, the trunk is short, the trunk is short, the trunk transitions naturally, after excavation, it is wrapped with yellow mud roots or wrapped with an attached film, and it is planted after being transported back, and the root system should be properly pruned and sorted when planting, cut the long main root, leave more lateral roots and whisker roots, and promote root development with loose fertile soil. At the same time, the branches and leaves are also properly sheared to germinate new branches, and then shaped and cultivated, after 1-2 years, they can be potted and processed to make pile scenery. Some large tree types use the Lingnan cutting and branching method for pruning, it takes 3-5 years or more to better shape.
Soil selection: The simple tree has strong adaptability and does not choose the soil quality, as a bonsai pile material cultivation, it is more suitable for the use of fertile loose, well-drained sandy loam soil to facilitate its better growth and molding, and can be planted with cultivated soil mixed with sand soil or arsenic bran ash.
Fertilization management: When changing pots in the plain tree, decomposed base fertilizers, such as decomposed bone meal and cake fertilizer, can be added to the pot soil. Keep the pot soil moist after changing the pots, and there is no need to fertilize for a short time. In the spring and summer stump growth period, thin fertilizer can be applied diligently, and thin fertilizer can be applied once after autumn, and no fertilizer is applied in winter.
Pot selection: Pot selection should be considered from the overall shape of the plant, color and other aspects, due to the dense leaves of the leaves, the leaf color is thick green, the bark is gray-brown, rough, the color of the pot is light yellow or ochre brown purple sand clay pot or glazed clay pot teaching good, can play a contrasting role. Depending on the shape of the tree, the pot shape is often selected to be rectangular, square or oval. If you use shallow pot planting, you must fix the root to the bottom of the pot with a metal wire to avoid lodging.
The basin should echo the main body and avoid making noise
Posture modeling: planting a living simple tree in the upper pot, after one year can be pruned, the simple tree shape creation is often used in the coarse and fine shear method, the simple tree is suitable for making straight dry type, oblique dry type, curved dry type, lying dry type or attached stone type and other forms. The leaves can be sliced or trimmed into bun-shaped round flakes, or processed into a natural tree shape. When the leaves of the simple tree fall, the shape can be carefully trimmed, and after pruning, the incision will germinate new shoots, and the useless buds must be erased in time. When the newly long branches are slightly woody, they can be shaped, and the remaining branches can be tied with aluminum wire to promote the side branches and make the branches dense and leafy. After picking leaves during the growth period, new shoots can germinate in half a month, (if the whole leaf piece is cut off at the end of September to allow the branches to re-germinate the leaves, the green leaf viewing period can be extended to the Spring Festival, and the new leaves in autumn will fall off when the new shoots begin to germinate in the spring.) The smaller leaves of the newer leaves are more ornamental.
Styling is tailored to the material
Large tree type simple tree bonsai can be pruned by the Lingnan school cutting dry branching method, lingnan school bonsai pay attention to pruning skills, branch cutting, just like lingnan school painting techniques, pay attention to the overall composition effect. The processed pile scenery can maintain a beautiful shape both when the branches and leaves are luxuriant and when the leaves are falling in winter.
Cutting and storing branches
The method of cutting and storing branches: when the first branch of the tree (that is, the side branches on the main trunk) grows to the required thickness, the strength is cut; at the same time, the second branch (or bud) with the right angle and position is selected, and when the second section is stored to the required thickness, the cutting is added, the following third section, the fourth section... All are carried out in accordance with this method. Generally, each branch leaves two or so small skills (or buds) a long and a short, after years of pruning, the proportion of the branches is symmetrical, the twists and turns are powerful, and its branches are "upturned like antlers, drooping like chicken feet", ancient clumsiness into the painting, there are jumping branches, floating branches, spread branches, the second, third and fourth layers of the branches of each branch, requiring gradual reduction and even distribution.
Pest control: In terms of pests and diseases, the bonsai of the plain tree is mainly based on prevention, and it can be mixed with furandan into the soil to allow plants to gradually infiltrate and absorb and control various diseases and insect pests. Common insect pests are wood lice, red spiders, blowing cotton bugs, tianniu, etc., red spiders, etc., wood lice, blowing cotton lice can be sprayed with 1000 times the liquid of oxidized Leguo, red spiders can be sprayed with 1000 times of Leguo emulsion, and Tianniu should be manually inspected and killed. In addition, common diseases are powdery mildew and coal pollution disease, powdery mildew can be treated with 2000 times powder rust Ning emulsion spray, coal pollution disease with sterilization Dan 400 times liquid prevention and control, prevention and control at the same time need to ensure that the environment of the placement site of the diseased tree is ventilated to avoid causing secondary diseases.