Sophora japonica
This family belongs to Sophora of Leguminosae.
Biological classification: angiosperms, dicotyledons.
[Edit this paragraph] Morphological characteristics
Branchlets are soft and drooping, the crown is like an umbrella, the state is beautiful, the branches are disc-shaped, the upper part is curled like a dragon, and the old tree is strange and ancient. The tree is weak, the difference between the main branches is not obvious, the big branches are bent and twisted, the branchlets are drooping, the crown can reach 50-70 cm thick, and the branchlets in the layer are easy to dry up.
[Edit this paragraph] Growth habit
Like light, a little tolerant of shadows. Can adapt to dry and cold climate. Born in sandy loam with deep soil layer, moist and fertile soil and good drainage. Deep roots, developed roots, strong wind resistance, strong germination and long life.
[Edit this paragraph] Main purpose
The ornamental value of Sophora japonica is high. Since ancient times, it has been symmetrically planted on both sides of temples, halls and other buildings to decorate gardens. During the festival, if lanterns are hung on trees, it will be even more spectacular. If you use dwarf potted plants to watch, it will make people feel soft and unique. During the flowering period, beige inflorescences are covered with branches, which are more beautiful and lovely, just like pholiota adiposa.
[Edit this paragraph] Pruning of Sophora japonica
Sophora japonica is a deciduous tree in Leguminosae. Its branches are bent and drooping, and its crown is often trimmed into an umbrella shape. It is a good greening tree species. Here is a brief introduction to its pruning method:
If the umbrella shape of Sophora japonica is to reach the ideal shape and size, pruning is very important, including summer pruning and winter pruning, once a year. Summer pruning should be carried out in the vigorous growth period, shortening the drooping branches by 2/3 or 3/4, so that more branches can be sent out from the cutting mouth and the crown can be expanded. Pay attention to the upper bud (or lateral bud) when cutting short, because the branches germinated by the upper bud can expand and grow outward in a parabolic shape. In winter, the leaves of Sophora japonica fall off and the staggered branches can be seen more clearly. At this time, you should trim it carefully. First of all, we should adjust the crown, use rope or lead wire to change the growth direction of branches, and pull adjacent dense branches to the missing branches for fixing, so that the branches of the whole crown are evenly distributed. Then cut off dead branches, thin branches and over-dense branches, and then leave the remaining branches with buds at the highest point of bending according to the strength of branches. Generally, thick branches stay long and thin branches stay short.
In the first few years after planting Sophora japonica trees on both sides of the road, scaffolding can be set up on the road surface, and branches on both sides of adjacent paths can be led to the scaffolding to make them grow in the opposite direction. A few years later, when the branches were entangled and fixed together, the scaffolding was removed. At this time, a green corridor will appear on the road, forming a beautiful and unique landscape. You can also plant a locust tree on both sides of the road entrance and trim it according to the above method, which is also a good shape.
In addition, the umbrella cover of Sophora japonica can also be trimmed into corrugated shape. The method is as follows: in the first year, leave short buds on the top branches at the highest bending point, in the second year, leave about 15 cm on the drooping branches for pruning, and in the second year, leave short buds at the highest bending point. Repeated pruning in this way will form a corrugated umbrella cover. If the drooping branches are slightly longer and shorter, a tower-shaped umbrella surface can be formed in a few years, which is very beautiful when applied to parks, solitary plants or row plants. (Source: China Flower News 2003-0 1- 14)
Reproductive management:
Traditional Sophora japonica is selected as the rootstock. Take one-year-old robust branches as scions, cut them into sections above 10cm, seal them with wax, cut the scions into horse ears (not less than 3cm) with a grafting knife, and wrap the sections with plastic film. Generally, it can germinate around 10. This method has been applied in Xinyuan seedling base in Dingzhou City, Hebei Province, and the survival rate can reach over 92%, which is worth popularizing.