Black pine is a traditional tree species for making bonsai. It is not only vigorous and tall, full of masculinity, but also has always been called "Manson". Pinus thunbergii is an evergreen tree of Pinaceae, and its growth environment is different, which makes the growth of Pinus thunbergii large. In places with suitable environment and fertile soil, the height of black pine can reach tens of meters. But it grows in harsh environment and poor soil, and its height is no more than one foot. Some techniques of propagation, maintenance, pruning and rolling of black pine are shared with you.

plant

At present, there are many breeding bases of Pinus thunbergii, and the method of seed sowing is generally adopted. The only limitation of this method is that it takes too long, but it has many benefits and should be advocated. Another method is to process black pine in green seedlings. Choose piles with thick branches and low branches, cut off the stems and cultivate them to make bonsai.

Before the germination period of early spring, excavation should be carried out, and the original soil of the roots should be preserved if possible, and the roots should be wrapped with soil for wetting. Before transportation, the roots, stems and branches should be cut off again, and all branches that don't need to be kept should be cut off. It should be noted here that the needle must be left on the reserved branches, otherwise the probability of death in the future is very high. Apply healing agent to the wound to prevent juice loss and wound infection.

Before planting, a careful pruning should be carried out to narrow the range of crown and rhizome as much as possible, which is beneficial to potted plants in the later period. When raising blanks, it is best to choose a sunny and well-ventilated place for maintenance. After about 2 years of growth and maintenance, you can basically finalize the design. I believe that after two years of green conservation, the concept of modeling must be quite mature.

systems modelling

The newly sprouted branches of black pine are soft, which is a good time to flatten them. According to the idea, it can be made into different styles of bonsai, such as curved stem, waterfront, attached stone and so on. If it is an old black pine stump, it should be made according to the shape of the stump. You can't forcibly destroy the shape of the stump on a large scale in order to achieve the desired effect. In the end, you will only end up with a dead duck on the shelf.

The correct way is to make the best use of the situation, shape according to the material, and combine Pinza with pruning to naturally produce natural and beautiful, vigorous and simple black pine bonsai. No matter what form the black pine bonsai is made, it can't go against the growth law of nature. Only by observing the natural growth form of black pine can we create high-value bonsai.

The modeling time of black pine bonsai is from 1 to March. During this period, the sap of black pine flows slowly, and almost no sap flows out from the wound of the branch, which has little influence on the future growth. However, it should be noted that the germination ability of black pine is weak, so be careful when pruning and try to keep branches. The well-developed root system of Pinus thunbergii can be used to make popular root-lifting modeling, which adds to its ancient charm.

environment

The growth characteristics of black pine, like sunny and well-ventilated environment, cold and drought-tolerant. Suitable for outdoor maintenance, choose an environment with sufficient sunlight and good ventilation, keep the basin soil dry, do not water it, but water it thoroughly, and do not give too much water. One is to prevent water accumulation, and the other is that too much water can easily lead to long branches and leaves.

Pay attention to water supply in summer and autumn. The temperature is high and the weather is dry at this time. It must be watered thoroughly and the soil moisture should be properly maintained. Don't water it half. Spray water in the morning and evening to keep the ambient humidity. Special attention should be paid to drainage and flood control in rainy season to avoid soil water accumulation and hardening in the basin.

Black pine leaves are relatively barren-tolerant, do not like fertilizer very much, and do not need to apply too much fertilizer during the growing period. Just apply some organic cake fertilizer to help the growth. Excessive fertilization will make the branches and leaves grow too vigorously, affect the beautiful appearance, and may also cause fertilizer damage. Fertilize as little as possible at ordinary times. In the autumn growth period, some organic cake fertilizer can be applied to help supply nutrients and make it grow vigorously, so as to achieve the growth of pine buds and the thickening of branches.

In winter, as long as the pot soil is not frozen, high temperature will affect its growth in the next year. It is best to bury the pots together in a sunny and sheltered place for the winter. Turn over the pots and change the soil every 2-3 years, and keep half of the original soil to protect the root system from damage and restore growth as soon as possible.

decrease

Black pine is not strong in germination and should not be pruned too much. Black pine can germinate from March to April every year. When the buds turn green and swell, and are about to leave, remove half or more buds and remove all spores to ensure the balance of tree potential and the neatness of crown.

The needles of black pine are longer, but they need to be shortened. In addition to water and fertilizer management when new leaves germinate, methods such as cutting tender branches, thinning buds and removing old leaves are also needed. Every year from July to August, all the new branches of the year are cut off, waiting for new buds to germinate, which will germinate in August and September, and then the redundant buds are removed, leaving only two buds on both sides or in the horizontal direction. As the temperature drops gradually, the growth of new buds and leaves will be inhibited. In June165438+1October, the remaining old leaves can be cut off, so that the black pine can grow short leaves born in September. It is also the best viewing period of black pine bonsai.

plant diseases and insect pests

Pests and diseases of Pinus thunbergii are mainly prevented, and the key is to be strong to get sick less, and weak trees to induce pests and diseases. Branch blight, which causes branches and leaves to wither, is caused by abnormal climate. Drought, flood, strong wind, high temperature and humidity, freezing injury, or growth weakness caused by malnutrition will all lead to pests and diseases.

In case of plant diseases and insect pests, first, spraying drugs in time, and second, increasing fertilizer, which can be applied to holes to provide nutrients and help restore the vitality of trees. Only by healthy growth can we stay away from the harm of pests and diseases. In the season of high incidence of pests and diseases, drugs can be sprayed for prevention and control, which can have a good effect.

Here are some techniques for making and maintaining black pine bonsai. One-button three links is my favorite. Please support me! Juanzi will have more experience and skills to share with you. You can also ask me directly and answer everything. Thank you!