Black pine is one of our common excellent ornamental bonsai, which is often planted with plum blossom and bamboo to form a three-friend bonsai. The following is the related contents about the cultivation methods and precautions of potted black pine, which I compiled for you. I hope it will help you!

Cultivation techniques of potted black pine Cultivation environment: Black pine is cold-resistant and drought-tolerant, and it can be used on the slopes and balconies in the courtyard all year round in Chenfang, with sufficient sunshine and ventilation. But small bonsai should not be exposed to strong light in midsummer. You can spend the winter in the open air in winter, and it is best to bury the basin in the lee of the sun. If the room temperature should not be too high, it is not suitable to spend the winter indoors, and Tomb-Sweeping Day can be moved outdoors.

Watering: Black pine prefers dry to stagnant water, and cannot be over-watered. Only when it is dry can it be watered thoroughly. Proper water control during the growth period can make the branches short and the needles short, and increase the ornamental value. When it is hot in summer, you can often spray foliar water, which is beneficial to growth.

Fertilization: Black pine is barren-tolerant, and the soil is deficient in fertilizer, which can also grow normally, promoting short stems, dense branches and short leaves. However, proper application of 1~2 times of thin decomposed cake fertilizer during the growth period is beneficial to healthy growth and increase the ability to resist pests and diseases.

Pruning: In order to maintain its elegant and simple tree shape, the black pine bonsai should be pruned appropriately, and the pruning should be mainly based on picking buds during the growing period, with an average of 3~4 times a year. When the new bud is elongated but the needle has not been drawn, each terminal bud can take about 65,438+0/2. If bonsai doesn't need long branches, the top buds can be picked. For the branches that affect the beauty of the tree, they can be pruned during dormancy.

Pot turning: Generally, the pot of black pine bonsai is turned once every 3-5 years, preferably in February-March. When turning the pot, all the original pot soil should be poured out, and 1/2 old soil should be removed, too long roots, dead roots and rotten roots should be cut off, and some unnecessary branches and leaves should be trimmed at the same time to keep the pot soil balanced up and down. If the capacity of the original pot is not enough, it can be replaced with a slightly larger new pot, and the planting method is the same as that of the upper pot.

Seven tips for maintenance of potted black pine ① More topdressing Generally speaking, it is better to cultivate black pine with thin soil, and it is necessary to control fertilizer and water as much as possible so that the supply of fertilizer and water can just maintain the minimum survival of black pine. This practice may be effective in avoiding too long pine needles. In the bud cutting stage, pine trees should be topdressing more. It is foolish to cut off the tender buds of weak saplings, which will hinder the next germination. Therefore, "topdressing first, then cutting buds".

2 More watering Some people think that more watering will lead to the death of black pine trees. On the one hand, this misunderstanding is caused by confusing black pine with five needles, on the other hand, it is caused by improper drainage. As long as the black pine is cultivated with suitable flower soil, it is impossible to die because of too much watering. "Once the topsoil is dry, water it immediately", which is the most basic common sense.

(3) Put it in a well-ventilated and well-lit place. No matter how you fertilize and water, if the place is dark and ventilated, the seedlings will not grow. Pests and diseases are also the most vulnerable to such weak saplings, so it is necessary to realize that "the key lies in daily management" before disinfection.

(4) Inhibition of vigorous tree bud growth. Black pine is a big tree species, which grows particularly vigorously in the center of the tree, so it is necessary to pick green frequently. Cut the buds? Sparse buds? Adjust the tree type by picking leaves, and pay attention to prevent weak branches from dying. Especially picking leaves, even if you don't cut buds, you should stick to picking leaves all the year round.

⑤ It is very common for people to cut short black pine leaves. This will leave an ugly brown incision. Although this kind of incision will not cause seedling death, it will sometimes cause resin overflow. In fact, there is nothing wrong with the leaves being too long. Cutting the buds in the second year will flatten the buds. Many people will say that black pine is not easy to handle. I think it may be that everyone finds the secret of this weak bud cutting difficult to understand.

6. Don't forget to cut it in layers. Seedlings with extremely long stems must be layered first and then cut short. Even a very thin part, as long as there are two or three branches, it is easy to grow roots.

⑦ Large-scale bonsai with windproof and antifreeze in winter can be placed outdoors, and miniature bonsai must be windproof and antifreeze. Although you can't care too much, antifreeze is good for spring buds. It is also necessary to understand the one-year growth cycle of black pine. Transplanting, bud cutting, green picking, bud cutting, bud thinning and leaf picking. What do you do in the month?

Black pine 1 matters needing attention in potted plants. Before transplanting, the seedlings of Pinus thunbergii were excavated manually. Before excavation, first explain the requirements of excavation and specific operating procedures to the workers to prevent accidents and unnecessary losses during operation. When operating, draw a circle with the root and trunk as the center and the straw rope as the radius. Clean the surface before digging, and the thick heel must be leveled when digging. Use tools to make the soil lump into a frustum-shaped soil ball with a big top and a small bottom. The width of the waist rope in the paddock depends on the soil ball. Transplanting is mainly packed with soft materials, which is suitable for round soil ball stumps. Generally, we mainly use straw rope for dense winding of soft materials.

2. The suitable time point should be selected for transplanting black pine seedlings, and the root regeneration ability of black pine seedlings should be mainly considered. It is necessary to transplant with large soil balls. Only the soil is frozen, and the soil is not easy to be broken during excavation, loading and transportation, which can minimize root damage. Therefore, frozen soil balls are generally used for transplanting during the dormant period of black pine, that is, when the soil is frozen in winter.

3. If the wound caused by Pinus thunbergii during transplantation needs to be treated with appropriate drugs, it should be planted as soon as possible after transplantation.