Planting Technology Lists
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Do not let bonsai boxwood blossom
Boxwood bonsai has become an art treasure because of its small evergreen leaves and slow growth. Generally speaking, the poplar bonsai materials are mostly taken from the old wild piles by the water. Wild old piles are easy to blossom and bear fruit. Some people think that the flowering of yellow poplar is very "spectacular" and is a great scenery. The author has more than 100 pots of wild yellow poplar pile scene, years of management practice, the author carefully observed and found that the flowering of yellow poplar is not a good thing. Because the flowering of boxwood has three disadvantages: first, it destroys the leaf phase. The bud period of Populus tomentosa is long, from August of the first year to March of the following spring. A fine bud clip
2019-01-11 -
Pest control: pest control techniques of Euonymus tomentosa
Populus tomentosa is an excellent evergreen broad-leaved tree species for urban landscaping and improving ecological environment in northern China at present. The number of trees planted has exceeded 1 billion. It has outstanding resistance and ornamental performance, and can maintain the bright green leaves in winter. Hedges, large color blocks and isolated planting are often used as the main planting forms. In recent years, due to the neglect of quarantine and treatment of diseases and insect pests in inter-regional seedling exchanges, the occurrence area of diseases and insect pests has expanded year by year, and some diseases and insect pests have developed into disasters due to untimely prevention and control.
2019-01-11 -
Application and Management method of Hokkaido boxwood in Engineering
Hokkaido boxwood is a very good landscaping material, due to the introduction and promotion of late, many design units are not familiar with its growth habits and status, in the design and application of less or inaccurate configuration. As a result, the seedling producers felt awkward for their training and pruning, planted seedlings all over the land, and did not know how to manage them. A few years later, they sighed. According to the research and practice of this park for several years, it is considered that there are several kinds of cultivation and trial. 1. Small single-pole tree. When the seedling grows to 1.8-2 meters, the upper part picks the heart and hits the head, leaving the upper 30 males.
2019-01-11 -
Leaf propagation of Populus tomentosa in Hokkaido
Propagation of Populus tomentosa with leaves can solve the problem of insufficient propagation materials. The specific methods are as follows: first, the cutting time and leaf selection cutting time should be in the middle and last ten days of April, and the temperature should be stable at about 20 ℃. It can be carried out for years in the greenhouse. If you select the old leaves for more than one year, you can also use the leaves picked when cutting branches. The leaves should be picked by hand, pay attention to the heel, do not cut the leaves with scissors. 2. Coarse river sand, peat soil and perlite are also suitable for medium and bed inserting medium, which should be aerated by water storage without stagnation.
2019-01-11 -
Characteristics and uses of boxwood in Hokkaido
Hokkaido boxwood is a new variety of Euonymus introduced by the Chinese Academy of Forestry Sciences in the mid-1980s. It is an evergreen broad-leaved tree of the genus Euonymus and a cultivated variety of Euonymus. It has the characteristics of tall tree body, tall and straight tree posture, evergreen in four seasons, considerable red fruit in winter and so on. As the new rural construction is gradually put on the agenda, greening and beautifying the environment will become an important part of the new rural construction. In order to change the single mode of deciduous trees in temperate zone and develop to high-grade greening and beautification, we should plant evergreen all the year round and no environmental pollution.
2019-01-11 -
Several propagation techniques of Populus tomentosa in Hokkaido
There are many breeding methods of Populus tomentosa in Hokkaido. Here are some common methods: 1. Cutting method: cutting method is divided into hardwood and tender wood cutting method. Hardwood cuttings take place between October of each year and the end of March of the following year. For units with sufficient provenances, cuttings can be cut slightly longer, units lacking in provenances, cuttings can be slightly shorter, cuttings are 8 to 15 cm long, cuttings are generally 3 to 5 cm deep, and roots can grow after 1 month. As long as the cuttings are carried out according to the following methods, the seedlings with better growth can be obtained quickly: 1
2019-01-11 -
Hokkaido boxwood
The source of the variety. Hokkaido Huangyang, also known as Japanese Huangyang, is originally from Sapporo City, Hokkaido, Japan. Introduced in 1986, after years of breeding and selection, it has become an excellent new variety suitable for the climatic conditions in northern China. Characteristics. The leaves of Hokkaido boxwood are wide and oval, the top is obtuse and round, the top tip is stout, the top advantage is obvious, single stem is straight up, showing excellent tree characters. The growth rate is relatively fast, the annual growth rate is 70,000cm, and the height of the 5-year-old tree is more than 3 meters. Hokkaido boxwood has a very obvious trunk.
2019-01-11 -
Cutting Seedling technique of Populus tomentosa in North China
Populus tomentosa is a southern evergreen tree species, which belongs to Populus tomentosa. For many years, it is deeply loved by people because of its low plant, compact, dense leaves, beautiful shape, evergreen and many other advantages, and is widely used in hedge and modeling design in landscaping. It is one of the most widely used tree species in northern landscaping, but it has been difficult to raise seedlings in the north due to the influence of climate and other factors. The greening seedlings in the north can only be transported over a long distance from the south, which not only increases the cost, but also the survival rate of seedlings is low. In view of this, we conscientiously summarize the classics in the cuttage and seedling raising of boxwood.
2019-01-11 -
Cultivation techniques of "Yellow Poplar"
"Huang Yang" alias: Holly spear, Zhenggi. Scientific name: BuxusmicrophyllaSieb.etZucc family: Populus tomentosa. Tree species characteristics: Populus tomentosa, also known as melon seeds, thousand-year-old dwarf, evergreen shrubs or small trees of the family Populus. The trunk is gray and smooth, with dense branches and four-angled branches. Leaves opposite, leathery, entire, elliptic or Obovate, apex rounded or retuse, surface bright green, abaxially yellowish green. Flowers clustered in leaf axils or branch ends, blooming from April to May, flowers yellowish green. The cucurbit fruit is oval.
2019-01-11 -
The most common diseases and insect pests of Populus tomentosa
1. The yellow poplar silk leaf borer larva spun silk to connect the surrounding leaves and twigs as temporary nests, and then ate up the leaves in serious cases, resulting in the death of seedlings. Morphological features: adult body wings are gray-white, the front, outer and trailing edges of the wings are purple-brown wide band, there are two white spots on the leading edge of the purplish brown belt, the scales are shiny, and the purplish red shines. The head of the larva is black, the carcass is yellowish green, the topline, subtopline and valve line are dark green to dark green, and the valve line is orange. Occurrence regularity: 2 to 3 generations a year in the northern region, with larvae in
2019-01-11