Artificial propagation: Pinus taiwanensis mostly uses seeds for seedling propagation, and the germination rate is high, generally reaching 80 ~ 85%. 165438+1in late October+65438+in early February, when the cones are yellow-brown, collect full cones from the strong mother trees with dense crowns and sow them. After exposure to the sun for about 10 days, the seed scales cracked, the wings were removed and impurities were removed, and the seeds were bagged and stored in winter. Sowing before and after the vernal equinox, the nursery should be acidic soil with loose soil and good drainage. Spraying 75% pentachloronitrobenzene or potassium permanganate solution for soil disinfection. Before sowing, soak the seeds in water, and then seed them with calcium magnesium phosphate fertilizer. 1 kg seed mixed with about 0.5 kg calcium magnesium phosphate fertilizer. After sowing, cover about 2 cm with fine soil, and then cover with grass. A month later, it began to sprout one after another. Dilute decomposed human urine can be applied once in June. After application, the leaves of seedlings were washed with clear water, and then 0.5% Bordeaux solution was sprayed to prevent diseases. July to August is the vigorous growth period of seedlings, and it stops growing in late September, when the seedlings can reach about 20 ~ 25 cm. Potting can choose 2 ~ 3 years old stout and short saplings, and then process and shape them. Mining in Shan Ye: Pinus taiwanensis is easy to regenerate naturally, and aerial seeding seeds can be planted in crevices, hills and slopes in mountainous areas above 700 meters above sea level. In Shan Ye, the short-growing wild seedlings of Pinus taiwanensis should be selected with flat branches and short and dense needles, which is convenient for potted modeling in the future.

It should be cultivated in time after harvest, and half of all needles should be cut off before planting to reduce evaporation. It is advisable to choose a place with abundant sunshine, good ventilation and poor soil for cultivation. To control moisture and nutrients, reed curtain should be used for shade in hot summer, so that the cover should be uncovered late and covered early, and water should be sprayed 1 ~ 2 times a day to keep the topsoil moist. After two years of in-situ cultivation, it has become a good bonsai material. Pot selection: Huangshan pine is chic and elegant, simple and unrestrained, natural and changeable. Therefore, it is generally appropriate to choose a simple and dark purple sand pottery jar, which is generally a shallow jar. The shape of the basin depends on the tree shape, such as straight dry type, double dry type and inclined dry type. , should choose a rectangular or oval basin; Bent stem type can be begonia-shaped or manger basin; Cliff type can be used for deep thousand barrel basins or medium deep square or round basins; Large bonsai can be carved with alum and marble; You can also choose glazed pottery pots for small bonsai.

Soil: Pinus taiwanensis is suitable for acidic sandy loam with PH value of 4.5 ~ 5.5, and neutral soil or slightly acidic soil also grows well. It is best to use mountain soil or humus soil mixed with 30 ~ 40% sandy soil as culture soil for potted plants.

Planting: Pinus taiwanensis is most suitable for planting in March-April, and can also be planted after autumn. When transplanting, you need to bring soil balls to help you survive as soon as possible. Check whether there are damaged roots, rotten roots and long straight roots before planting. If necessary, cut them off and apply wax or paint to the wound to avoid resin spillage. Pine is wet, so the bottom of the basin must be filled with broken tiles or charcoal, covered with a layer of coarse sand, and the deep basin can be filled to the height of 1B3 to facilitate ventilation and drainage. The shallow basin is padded with plastic gauze on the basin hole. When planting, fully fill the root soil with dry soil, shake pots and pans, compact with bamboo sticks, spread moss, water it once, and place it in a semi-shady place. After about 65,438+00 days, they should gradually move to sunny places, but they should not be exposed to strong light at once. Processing: The overall posture of Pinus taiwanensis is mainly climbing, supplemented by pruning. Climbing can be done with brown silk or metal wire. The metal wire is the most convenient and easy to master, but it should be removed in time after setting to avoid wire entrapment and damage to branches. Pinus taiwanensis is generally combined with upper basin pruning. According to the needs of the tree in the future, remove apprentice branches, cross branches, parallel branches and redundant branches. According to the needs of modeling, climb the trunk first, and then hang the branches properly. It only needs simple processing, not too trivial and complicated, and it will be shaped year after year.

Pinus taiwanensis stumps unearthed in Shan Ye can be potted after 1 ~ 2 years of ground cultivation. You can also cultivate in the open field, do modeling once a year, dig up and cut off the main roots in the second year, then go down to the ground, and then adjust the modeling posture to promote more lateral roots. After a few years, you can shape and watch them in the basin.

The pruning of Pinus taiwanensis should be carried out in late winter and early spring, when Pinus taiwanensis is dormant. It is best to do climbing and binding modeling during the growth period. At this time, the sap flows and the branches are soft and easy to bend and bind.

Tree shape: The bonsai of Pinus taiwanensis is natural and changeable, healthy and elegant, with the characteristics of typical pine trees. It can be made into straight dry type, inclined dry type, horizontal dry type, bent dry type and cliff type. Its modeling requirements can refer to the modeling of black pine, and it is not necessary to cut it into pieces. Just control the growth of branches and leaves by coring, that is, pick 1B2 new buds every spring.