Transplanting techniques and matters needing attention of Hawthorn trees

In fact, tree transplanting and tending management are often used in landscape construction in order to achieve the garden effect of rapid greening and beautification. Then the editor of Tuliu.com will come to talk about the transplanting technology of Hawthorn tree. Let's take a look.

I. timely transplant

Transplant after defoliation in autumn and winter to before soil freezing and before sprouting in spring. However, in order to avoid the adverse effects caused by severe cold wave and low temperature after transplantation, it is better to wait for the weather forecast when there is no special low temperature after falling leaves in autumn and winter or before sprouting in spring.

Second, reasonable regiment root

The main results are as follows: 1. Hawthorn is a shallow root tree species, the main root is underdeveloped, the lateral roots are mostly distributed within 50cm, and the most are distributed in 20~40cm soil layer, but the depth of Hawthorn tree can reach 1.2 ~ 1.5m in deeply turned loam or sandy loam soil, and the horizontal distribution of root system can reach more than 15m. Therefore, transplanting Hawthorn trees usually requires preparation in advance.

2. In the spring or autumn of 1 or 2 years before transplanting, take the trunk as the center, 2.5 × 3 times DBH as the radius, dig a 30~40cm wide ditch outside the circle (its depth depends on the root distribution, usually 50~80cm), cut off the inner wall of the root flush, keep the large root but peel the root around, and then fill it with live soil (preferably sandy loam or loam), step on it layer by layer, and water regularly. Many fibrous roots will grow in the ditch in 1 month or 2 months. Cluster roots should generally be carried out in two stages, so as not to cut off the roots once so that the life of the trees will be affected or die.

3. Usually in the spring of the first year, the southeast two directions of the tree are selected to dig the roots, and in autumn, the other two sides are excavated in the same way. When transplanting big trees, the root-protecting soil should be preserved as far as possible, with soil balls. The aboveground parts have fallen leaves in winter, and the water loss is less. According to the tree posture, appearance and carrying ability, more branches can be retained as much as possible to facilitate the landscape restoration after transplanting. But after all, apart from more underground parts, the aboveground parts should also be properly trimmed to achieve a balance of water and nutrients. Especially for budding trees, if the transplanting period is flowering, improper pruning will overburden the roots and even damage them. In addition, in order to prevent wound infection and reduce water loss, larger wounds of roots and stems are covered with latex, and larger wounds of branches are bound with thin film. Build an earth platform, fill it with loose soil and raise the planting hole to prevent stagnant water.

Strengthening the maintenance and management of big trees during the survival period

The first year after planting a mountain tree is a critical period for its survival. During this period, maintenance and management should be carried out in time to ensure a higher survival rate of planting big trees in the newly cut mountain.

1. Upright and cultivate the soil

When the tree disk sinks as a whole or partially, it should be filled with soil in time to prevent water from rotting the roots after rain; if the soil accumulation of the tree disk is too high, it is necessary to shovel soil and rake flat, so as to prevent the root system from being too deep and affect the development of the root system. Measures should be taken to correct the sloping trees.

2. Water management

The transplanted trees are very sensitive to the amount of water because of the damage of root system and the change of environment. Therefore, the water management of newly planted trees is an important part of conservation and management in the survival period. Pay attention to irrigation in the dry season, and it is best to ensure that the soil water content reaches 60% of the maximum water holding capacity. In general, it should be irrigated 5-6 times in the first year after cutting, especially in the case of high temperature and drought. In the high temperature and early dry season, when it is found that the leaves have mild symptoms of wilting, sprayers or guns can be used to spray water directly to the crown or the upper part of the crown. Water spraying can be carried out from 10:00 to 4 p.m., every 1-2 hours, and sunshade nets should be set up if necessary to prevent excessive sunlight.

In addition, attention should be paid to loosening the soil, weeding, reasonable fertilization and replanting. So that's all for today's Hawthorn tree transplant technology. I'll see you next time.