California planters have cultivated several kinds of eucalyptus, each with its own unique characteristics. The leaves are round, oval or conical, bifurcated or distributed along the erect stem. Leaves from grayish blue to grayish green set off many flowers. Almost all varieties exude fragrance. Most varieties are available all year round, and all varieties are very easy to preserve for a long time.
"Little Orchid" is the hottest variety at present. It has round or oval leaves, about an inch in diameter, and they face each other on a very straight stem. "Little Orchid" has produced a very angular image. A "real orchid" is similar to a "little orchid", except that its leaves are larger, with a diameter of about 2 inches. This is an ideal choice for very large bouquets.
The resulting eucalyptus is very popular in big cities such as new york and Chicago. In autumn and early winter harvest season, it has slender but somewhat round gray-green leaves with clusters of seeds. This pile of seeds is actually a pile of flowers and bones. Eucalyptus is harvested before flowering. Its solid seed string adds many colors and changes, and can be used as a focus, hanging down from flower baskets and wedding bouquets like curtains.
"Silver Eucalyptus" has round, flat leaves hanging from small stems, resulting in a plump and dense appearance. Its forked leaves can be used as the frame structure of design, establishing height, width and depth, and can produce visual movement.
"Cider Eucalyptus" has more dense gray-green leaves. It has a more relaxed appearance, which makes it more suitable as a dense central element in decoration. It can be used for large-scale decoration, especially for building frame structures in English country style design.
"Willow branches and feathered eucalyptus" looks just like its name. It has long and narrow gray-green leaves. Its slender feathery leaves are very suitable for roses and mixed bouquets.
There is also a pocket-shaped eucalyptus. Its leaves are small and odorless, so it is very useful in hospital decoration.
Eucalyptus must not be exposed to freezing temperatures. Before being used for flower arrangement, eucalyptus should be pruned and put into fresh warm water containing flower nutrients. If the top is tender and soft, you should suck water into the top.
When the stem is stripped of leaves, it will release a sticky sediment. Washing with emulsion or soap containing lanolin will quickly remove it.
Eucalyptus cultivation technology Eucalyptus is the general name of eucalyptus species in Myrtaceae, and it is one of the three famous fast-growing trees in the world. Strong adaptability, diverse tree species, wide use and high economic value. It is a very rare short-term industrial timber tree species, which can be harvested and utilized in 5-8 years. Eucalyptus is a light-loving tree species. The wood is red, shiny, without special smell, with staggered textures, dense structure, hard and heavy materials and easy bending, which is very suitable for bending wood. Can be used as furniture, floors, lathes, tool handles and farm tools. Its fiber is a good raw material for papermaking, which has a high combustion value of small diameter wood, can be used as fuel and has a wide range of uses.
Afforestation: 1, afforestation site selection. Choose barren hills suitable for forest with convenient transportation, gentle slope, deep soil layer and loose fertility below 600 meters above sea level. 2. Soil preparation. The size of the hole is 40×40×40 cm. 3. Density. Plant spacing: 2× 3m, per mu 1 12 plants. 4. Apply base fertilizer. Within half a month before planting, the top soil should be used to return to the hole height 10 cm, and then 0.5 kg of phosphate fertilizer should be applied to each plant. Note that phosphate fertilizer should be removed evenly and not piled up, and then fill the pit with soil to the soil surface. 5. seedlings. It is required that the provenance is pure and the seedlings are first-class .. 6. Planting. Eucalyptus seedlings are planted on the mountain. Because the seedlings are tender, special care should be taken in transportation and planting. When planting, you should first remove the nutrient bag, hold the nutrient soil by hand, carefully put it into the hole, then cover the soil, compact it from the side, and then compact the root of the seedling with fine soil, just enough to cover the nutrient soil. Finally, cover the surface with 3-5 cm fine soil to form a turtle back shape to prevent water accumulation in rainy days. 7. Top dressing. Top dressing 3-4 times a year. The interval should not be too short or too long, generally every 2-5 weeks. Top dressing with nitrogen fertilizer has a great influence on the quality of seedlings. In order to improve the resistance of seedlings to low temperature and drought, top dressing should be completed 6-8 weeks before frost comes. After the first afforestation 1 month, combine weeding seedlings with topdressing urea in rainy days, and apply 3-5g urea to each plant, and circle at a horizontal distance of 5 cm from the seedlings. When fertilizing, we should guard against death. The second time, each plant is 6-10g; The third time was 6- 10g/ plant; For the fourth time, more than10g urea was applied to each plant. Finally, cover a layer of fine soil with a thickness of 5-7 to prevent fertilizer loss.
Management and protection: 1, management and protection. After afforestation, a special person should be arranged to take charge to prevent human and animal injuries within three years. 2. care. Tend to be twice. For the first time, one month after afforestation, it is necessary to cultivate soil, loosen soil and weed. In June of the following year, it was required to shovel grass, remove sprouting and expand holes. The hoeing depth is greater than 10 cm. Because eucalyptus is naturally pruned, there is generally no need for manual pruning, so as to avoid leaving scars on the trunk, resulting in poor trunk shape; When the advantages of individual tips are not obvious or there are more than two damaged branches at the top of seedlings, pruning and shaping should be carried out to promote the formation of trunk.
eucalyptus
Scientific name: Eucalyptus
Nickname: You Jiali
Family: Myrtaceae
Genus: Eucalyptus
Distribution: At present, the distribution center is in Oceania. It is cultivated in all provinces (autonomous regions) and cities in China 17.
Description: Evergreen plant, with old leaves falling off periodically within one year. Most species are tall trees, a few are small trees and a few are shrubby. The crown shapes are steeple, multi-branch and vertical branch. Leaves simple, entire, leathery, sometimes covered with a thin layer of wax. Leaves can be divided into three categories: young leaves, middle leaves and mature leaves. Most young leaves are opposite, small, heart-shaped or broadly lanceolate.
Habits: Mostly subtropical plants. Hi-light, good humidity, drought resistance and heat resistance. Afraid of cold, very sensitive to low temperature. Some species originated in the tropics and cannot tolerate low temperatures below 0 degrees; Some species grow in a warm climate and can withstand a low temperature of-10 degrees. It can grow in all kinds of soils, and most soils can adapt to acidity and alkalinity. The most suitable soil is fertile alluvial soil.
Garden use: Eucalyptus has graceful posture, evergreen seasons and extremely rapid growth, and has the ability to germinate, renew and improve wetlands. Tree species suitable for landscaping. The leaves contain aromatic oil, which can sterilize and repel mosquitoes and can be used to extract sesame oil. It is also a good greening tree species in convalescent areas, residential areas, hospitals and public green spaces. The twigs and bark contain tannin, which can be used to extract tannin extract; Bark and wood can also be used to make pulp.
Propagation: Propagation by sowing, grafting, cutting and shoot tip tissue culture.
eucalyptus
On the east coast of Australia, the dense forests are lush, and tourists from all over the world are all amazed. However, few of them know that 90% of this vast forest is eucalyptus. Eucalyptus is a gift from nature to Australia and Australia to the world.
Hundreds of millions of years of isolation in Australia have created its unique flora and fauna. Although there are no mature mammals here, there are more than 100 marsupials, and the famous kangaroo is their "image spokesperson"; There are many exotic flowers and herbs growing quietly here, many of which can't even be named by botanists, and eucalyptus is their well-deserved representative.
Australia's land is the poorest on earth, and the soil of low-carbon and high-speed rail is crimson; Australia's climate is very dry, but eucalyptus can thrive in this difficult natural environment. According to research, there are more than 500 kinds of eucalyptus in Australia, which can grow to more than 100 meters high, straight and upright, and the short ones are only one or two meters, showing a shrub shape. In order to survive, eucalyptus has formed many unique growth characteristics in the long-term evolution process: in order to avoid the scorching sun and reduce water evaporation, eucalyptus leaves droop and face the sun; In order to cope with frequent forest fires, the nutrient delivery pipe of eucalyptus is deeply hidden in the wood layer, and the seeds are also wrapped in thick wooden shells. After a fire, as long as the wood core of the trunk is not burned dry, it will be full of vitality when the rainy season comes. Eucalyptus seeds are not only not afraid of fire, but also can knock open its wooden shell with the help of fire, which is convenient for taking root and sprouting. Eucalyptus is like a phoenix. After the fire, you can not only be reborn, but also grow better.
If there were no "land guards" like eucalyptus, Australia's red barren soil would have been eaten clean by wind and rain; Without eucalyptus, many insects, reptiles, birds and marsupials living there would be extinct because there was no hiding place and food. Of course, people will not see the embarrassing image of koalas that only eat eucalyptus leaves. Local aborigines can't live without precious eucalyptus trees. Eucalyptus can be used as a water storage tank. The trunk of a eucalyptus tree is empty, and many trunks are filled with drinkable water. Where there is no water, the aborigines beat the trunk with wooden sticks to find out if there is water in it. The flowers of eucalyptus are fringed and pink. Bees that feed on eucalyptus flowers produce a lot of honey, and beekeepers can squeeze nearly 20 kilograms of honey from a beehive. Some eucalyptus leaves contain cineole, which is an important pharmaceutical raw material and can also be used as an additive to make fruit candy. The aborigines also use eucalyptus trunks as wind instruments to blow out the sadness and joy in their hearts. With the development of the times, the use of eucalyptus is more and more extensive. Building houses, making furniture, making telephone poles, and making railway sleepers are omnipotent.
It can be said that there would be no Australia without eucalyptus. But Australians did not enjoy this precious gift from nature, but gave it to the world. Eucalyptus seeds germinated in the Mediterranean coast from the19th century, and developed rapidly in Africa, Asia and America. Eucalyptus varieties were introduced to China very early and widely planted in southern provinces. Eucalyptus grows rapidly and its wood is hard, which plays a very important role in environmental protection and the development of wood industry in China.
Eucalyptus is a very common tree species in Addis Ababa, the capital of Ethiopia. It is said that shortly after Menerik II designated Addis Ababa as the capital, he found that although there were many flowers here, there were not many trees that could be used for firewood. So, he came up with the idea of moving the capital. When the news spread, someone said to the monarch, instead of looking for a new capital, it is better to plant trees on the spot. He adopted this suggestion and began to introduce fast-growing eucalyptus from 1905, calling on the masses to plant it widely. At the same time, he decided that the state would provide saplings at low prices, and the land tax for planting trees would be exempted. In this way, in less than 20 years, eucalyptus not only covered the whole city, but also formed a broad green belt around the city. The problems of building materials and firewood have been solved, and the capital has not moved. At present, there are more than 50 square kilometers of eucalyptus forests in Addis Ababa, and 90% of the wood needed for urban construction depends on eucalyptus. Also known as "eucalyptus"