The latest planting method of red maple

Red maple tree, also known as red leaf feather maple, is a variant of Acer maple of the Aceraceae family. It is a subtropical tree species. It likes moist, warm climate and cool environment. It is more resistant to shade and cold, and avoids scorching sun exposure, but it can grow in full light in spring and autumn. It is not strict with the soil. It is suitable to grow in fertile, humus-rich acidic or neutral sandy soil. Let's take a look at the red maple planting method.

Planting value of red maple

1. Ornamental value: red maple is a very beautiful foliage tree species with beautiful leaves, bright red and long-lasting leaves, neat branches, clear hierarchy, beautiful tree appearance and high ornamental value.

2. Beautify the environment: red maple branches and leaves are purplish red, gorgeous and have high ornamental value. they are important color tree species in our country, which are widely used in garden green space and courtyard as ornamental trees, mainly in isolated and scattered planting, and should be arranged in the center of the lawn. Before and after tall buildings, corners and other places, red leaves and green trees reflect each other, and potted plants can also be made into the shape of root, stone, cliff, withered and so on.

3. Soil and water conservation: the leaves of red maple will slowly change color every autumn and winter, and they will be planted in hillsides and other places, which will have good ornamental value in autumn, and planting trees will also play an important role in preventing soil erosion and preserving the ecological environment.

Cultivated varieties of red maple

1. Chinese red maple: Chinese red maple, also known as red leaf feather maple, is a variety of Acer maple of Aceraceae. It is a small deciduous tree with a height of 9 meters. Like light, avoid hot sun exposure, but also like warm and humid climate and deep fertile soil, not resistant to waterlogging, slightly resistant to drought, more resistant to cold, in most parts of our country can survive the winter in the open field.

2. Japanese red maple: Japanese red maple, also known as Japanese red ribbon, is known as "four Seasons Fire Maple". It belongs to Acer family Acer and belongs to small deciduous trees or shrubs. The leaves are red in spring, summer and autumn, and some varieties are very colorful. In summer, the photosynthesis of leaves increases with the enhancement of light, and tends to turn green gradually. The effect is not as good as that in spring. In autumn, the new leaves can remain red, but they have darkened, and the old leaves have turned dark green. The species of Japanese red maple are relatively small. It is generally used for landscape greening.

3. American red maple: American red maple alias Acer, northern red maple, North American red maple, swamp maple, Canadian red maple, red sugar maple, scarlet maple and so on. Acer is a deciduous tree. The new leaves turn red in spring and match with clusters of red flowers. The branches and leaves become overcast in summer and the leaves are gorgeous red in autumn for a long time.

Propagation technique of Red Maple

1, cutting propagation: red maple can be propagated by cutting, especially in the production of small bonsai or potted plants, cutting is generally carried out during the Meiyu period from June to July, select about 20 cm of strong headmaster in that year as cuttings, quickly dipped in 1000ppm naphthalene acetic acid powder, cut into vermiculite or perlite and pond mud half of the matrix, and then pay attention to shade, spray moisture, about a month later can take root one after another. If there is full light spray, 2-year-old branches can also take root, and the survival rate is high. After transplantation, shading should be carried out, sunlight can be gradually accepted after half a month, and water and fertilizer management should be strengthened.

2. Sowing and reproduction: red maple seeds are not dormant, so they can be sowed in autumn or in spring. The suitable sowing time is from the middle of March to the middle of April. Before sowing, mix the seeds with wet sand at the ratio of 1:3 and put them under the condition of 3-5 ℃ for a month of low-temperature sand storage. During the stratification period, we should check and manage regularly, find germinated seeds and sow them in time. When sowing, first fill the border with enough bottom water, wait for the water to seep down and then sow, about 200 seeds per square meter. The fine soil of 0.5cm should be covered after sowing. In order to preserve the soil moisture and improve the soil temperature, the seeds can sprout early and neatly, and the plastic film or small arch shed can be covered. The arch shed should pay attention to ventilation, and the temperature should be shaded properly when the temperature exceeds 30 ℃ at noon. Generally, the seedlings will come out about 15-20 days after sowing.

3. Grafting propagation: Acer truncatum can be propagated by grafting. 2 ~ 4-year-old Acer mongolica seedlings are used as rootstocks, cutting and grafting should be carried out from March to April, and the height of rootstocks can be determined according to needs. This method is only used for a few precious varieties, which is carried out in the rainy season from May to June and cut off after falling leaves in autumn. Bud grafting is the most common, and the best time is from late May to late June and from late August to late September every year. Early summer is the peak period for branch growth. The full buds on the sunny short branches of the red maple are used as buds with a long petiole of 1 cm. After that, the temperature is getting higher and higher, although there is a plastic belt after it, but the buds and petioles are still exposed, and the skin of the red maple is thinner, and the bud is small, so it should be sprayed regularly to moisturize after pressing, in order to improve the survival rate. The method of bud grafting after autumn is basically the same. After a week, if the petiole is touched, it means it has survived, otherwise it has to be rejoined.

Planting method of red maple

1. Soil selection: it is not strict with soil and can adapt within the range of soil pH5.5~7.5, so it can grow in slightly acidic soil, neutral soil and calcareous soil, and is suitable to grow in fertile and humus-rich acidic or neutral sandy loam.

2. Water management: red maple likes to be moist in the process of growth, but except for adequate watering in summer, it is better to keep the basin soil moist often, which helps to keep the tree beautiful.

3. Light management: red maple likes warmth, can accept all-day sunshine in spring and autumn, move to semi-shady place after summer, avoid direct sun at noon, and spray water properly to cool and humidify when dry and hot.

4, temperature control: although the red maple likes to be warm, it is still relatively hardy. In the Yellow River basin, the winter temperature is as low as-20 ℃, but as long as the environment is good, it can still live in the open field. As for the north of the Yellow River, it is appropriate to pot, and it is appropriate to enter the house in winter.

5. Timely fertilization: red maple applies thin cake fertilizer water once a month from May to August every year, and changes to liquid fertilizer based on potash fertilizer from September, such as 1% potassium sulfate solution or plant ash leaching solution to make the leaves red.

6. Disease and pest control

① underground pests have grubs, mole crickets and other gnawing seedlings and stem base, easy to cause seedling death, can use Lesbon 1000 times solution or 50% phoxim EC 10001200times solution to irrigate roots.

② invades the leaves of Japanese red maple such as beetles, diamondback moths and aphids, resulting in poor seedling growth. Aphids and beetles adults can be sprayed with 1, 200-1500 times of imidacloprid powder, and pyrethrum pesticides can be used to control diamondback moths.

③ stem borer pests such as longicorn beetles and heart borer endanger the branches of Japanese red maple, causing withered branches and even the whole plant of Japanese red maple. During the peak period of adult longicorn beetles (June-July), 4.5% cypermethrin 1500 × 2000 times can be sprayed once at intervals of about half a month, twice in a row, or pesticides such as dichlorvos or Lesbon are injected into the branches at the entrance of the insect road and sealed with clayey soil.

④ diseases include brown spot, powdery mildew, rust and so on. Japanese red maple born in 2012 seldom suffer from diseases and insect pests. Japanese red maple with a dry diameter of more than 3 cm often has fungal infection from May to June every year. The symptoms are leaf tip reverse curling white, dark red spots on the leaf surface, perforation after sun exposure, and only veins and petioles left in September, even the whole leaf withered, the tender shoots withered, only branches remained, and the whole plant died in cold winter and spring. Others die after growing leaves in spring.