It is generally considered that the black pine transplant time from the winter dormancy period to the early spring February and March. In fact, the best period should be on the eve of the Spring Festival (Fujian area) to the Arbor Day (March 12).
If it is transplanted in the early winter season, strong roots will not be able to promote new roots under low temperature conditions. At this time, a long time of close contact with the new soil will easily lead to wound ulceration and increase management difficulty. However, for pile heads that cannot carry earthballs, if the pine buds begin to sprout in the spring, the loose liquid will flow loose and the roots will not be able to draw effective nutrients from the soil in time. This will lead to an imbalance in the supply and demand of the plants. Even if the pine buds are drawn out, they will gradually turn brown. . Therefore, when you encounter a good material and cannot carry a soil ball, you should transplant it as soon as possible to allow it to differentiate and take root in new soil. It is worth noting that as far as possible, small roots must be cared for during transplantation. In particular, the bigger the roots are, the more fine roots are, and the more valuable they are, especially the upright main roots are thicker and the fine roots are more important. When transplanting, spare excess branches as much as possible to reduce the burden on the tree.
Black pine is afraid of rot. Preventing rotting roots and promoting new roots is another important link in the survival of black pine. The first problem is the preparation of basin soil. Black pine is better at about pH 6.5. Nanbei acid. Most of the soils in the south have PH values ​​that are somewhat acidic, and they require good ventilation and fast dewatering conditions. Usually, ideally, Sanmao soil is used, that is, the white soil is composed of white to components, and the grains are uneven in size. Grind the powder with your fingers, and mix with two loess (ie, mountain soil) or sandy soil. If there is no condition, coarse sand can be added to loess. For example, if the sediment content of mountain soil is high, sand will be used less, and vice versa. In addition, new cuts of root bark were cut with a knife before planting, and Vaseline was painted. Some could also be marked with wax oil and some with a layer of aureomycin. In short, the new incision is not soaked and festered as much as possible when the basin soil is too wet. Newly-planted pines need to spray leaf water several times a day when they are not alive, and they cannot allow the water of the next drop to infiltrate the culture soil, causing the basin soil to become too wet. Usually a large piece of film can be used, one edge of the pile around the head, at the same time tied with a string. If the first fulcrum is higher than the ground, the film can be wound higher, and then the film will be opened and pulled outwards obliquely, so that the excess water under the leaves will always lead to the outflow. In this way, the head soil surface is easy to dry, artificially controlling the dry humidity of the potted soil.
The environmental conditions of the transplant are also very important. It is best not to have radiation in the afternoon sun, not to dig pits, especially deep pits. Poor planting, easy to attach to the ground temperature, easy to adjust the humidity and air permeability, promote new roots and improve vitality.
The author once transplanted a large black pine piling with a height of nearly two meters and a head pile diameter of more than 20 centimeters. Due to the loose sand, he survived the summer after the planting and grew up. The practice is as follows and is for reference only.
In the process of repairing roots and branches of pile heads, all incisions are also treated with strict waterproofing. Because the wound is prone to turge spills, the wound can be 502 drops. 502 can be solidified within seconds, sealing the incision, can effectively protect the tree gas. The remaining branches ensure the water absorption capacity of the tree as much as possible. The absence of earth ball equals to cut off all emergency sources of supply, and it must not allow the pine juice to overflow. When planting, spread a layer of barley around the roots, then pile the soil and grow high, so that the malt grows out of the earth. After 6 days, use glue pipe to insert deeply, irrigate and lightly stir to make the soil become pulpy. The greatest degree is in close contact with the surface of pine roots. Microorganisms are used to promote multi-rooting and early rooting. At the same time, the water absorption capacity of roots can be increased and the tree body can be recovered.
In the process of transplanting, the maximum humidity of the whole tree and pine leaves is maintained, and the membrane is wrapped with only the necessary ventilation holes. After transplanting, it is also necessary to ensure that the leaves are not in a "dry" state. After spraying the loam, the water sprayed on the leaf surface is strictly prohibited from infiltrating into the head. At this time, the wet soil that has been watered needs to be dried in the shortest time to reach the pine. Planting soil "preferably dry" requirements.
In the first week of planting, the sun can be completely avoided. In the next month, only light was seen before 9 o'clock in the morning, and the rest was shaded with shade cloths. If the amount of light is increased too early, the metabolism is strengthened. Since the temperature is not suitable for rooting, the amount of sap flowing is too large, and the energy exhaustion is not conducive to survival. By March-April, sunshine hours can be gradually extended. Because the plant is in a semi-dormant state for a long period of time, after it receives weak sunlight, the leaves can be sprayed with glucose in an appropriate amount to supplement roots for 5-6 days. It is normal for plants to sprout buds. If it is not a serious lack of water in the soil, when the core of the bud is weakened or when it grows and bends, it can be determined that the plant has been decomposed. If it is found that the branches of the pine trees are yellow, it also indicates that they have died. However, the needles are not completely dehydrated and dried up, and they must be psychologically prepared. Over the summer, in the process of pine buds. When bud heads stop growing, they immediately pay attention to whether or not there are loopholes in the inspection and management. It may be possible to continue cutting off some of the excess branches and restore balance.
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