What kind of plant is it?

Wei Zi Wei Zi, alias Jingershu, Hundred Days Red, Full House Red and Pruritus Tree, helped to edit the encyclopedia business card. It is a dicotyledonous plant of Lagerstroemia of Lysimachiaceae. Of southern Asia and northern Australia. It is distributed in East China, Central China, South China and Southwest China, and widely cultivated in various places. Lagerstroemia indica has beautiful posture, smooth trunk and bright colors; When the flowers bloom, it happens to be the summer and autumn season, and the flowering period is extremely long, from June to September, so it is known as "Hundred Days Red" and has the reputation of "summer green covers the eyes and this flower is full of red eyes". It is a good bonsai for ornamental flowers, stems and roots. Wei Zi is also the city flower of Anyang, Henan, Xiangyang, Hubei and Jincheng, Shanxi. Chinese name: Lagerstroemia indica, alias: Jinger Tree, Zinnia, Full House Red, Giant Panda Order: Angiosperm: Dicotyledonous Plants Compendium: Myrtaceae: Lysimachiaceae: Lagerstroemia Species: Lagerstroemia Distribution: South Asia and Northern Australia. Distributed in East China, Central China, South China and Southwest China.

Pharmacological analysis of distribution morphological characteristics of common varieties in catalogue ecological habits: garden application of Lagerstroemia indica varieties

Pharmacological analysis of distribution and morphological characteristics of common ecological habits varieties: garden application of Lagerstroemia indica varieties

Expand the ecological habits of editing this paragraph.

Lagerstroemia indica [1] Lagerstroemia indica [2], also known as Centurion [3], is drought-tolerant, waterlogging-tolerant, warm and moist, light-loving and fertilizer-loving, and has strong resistance to sulfur dioxide, hydrogen fluoride and chlorine, and can inhale harmful gases, and neutral soil or slightly acidic soil is better. According to the determination, each kilogram of leaves can absorb sulfur 10g and grow well. Lagerstroemia indica can also adsorb dust. In a cement plant 200 ~ 250 meters away from the pollution source, leaves can absorb 4042 grams of dust per square meter. Therefore, it is the ideal tree species for urban, industrial and mining greening, and can also be used as bonsai. Lagerstroemia indica also has medicinal effects. Li Shizhen discussed in Compendium of Materia Medica that its bark, wood and flowers have the functions of promoting blood circulation, dredging meridians, relieving pain, reducing swelling and detoxifying. Seeds can be used as pesticides to kill pests. Leaves can cure white dysentery, flowers can cure postpartum hemorrhage, children's rotten head and fetal poison, and radically cure carbuncle, swelling and sore poison, which can be described as treasure all over.

Edit the common varieties in this paragraph.

Common varieties are: Lagerstroemia indica, Lagerstroemia indica, Yin Wei, Chiwei, Cuiwei, etc. [4]. Lagerstroemia indica and Lagerstroemia japonica are relatively stable.

Edit the origin distribution of this part.

Mainly distributed in Jiangsu, Shandong, Zhejiang, Anhui, Hebei, Henan, Hubei, Jiangxi, Beijing, Tianjin and other provinces and cities. After years of introduction, crape myrtle can be cultivated in many places.

Edit the morphological characteristics of this paragraph

Lan Lina's oil painting Wei Zi [5] belongs to deciduous shrubs or small trees. It is cultivated artificially in Weiziji, Jiangsu Province, with a large number. Lagerstroemia indica is a small tree, sometimes shrubby, 3 ~ 7 meters high; The bark falls off easily and the trunk is smooth. The young branches are slightly quadrangular and slightly winged. Leaves alternate or opposite, subsessile; The leaves are ovoid, obovate or oblong, 3-7 cm long and 2.5-4 cm wide, smooth and hairless along the main veins. Panicle terminal, 4 ~ 20 cm long; The flower diameter is 2.5 ~ 3 cm; Calyx 6-lobed, lobes ovate, smooth outside; Petals 6, purple, red, pink or white, with irregular notches at the edge and long claws at the base; Stamens 36 ~ 42, outer 6 filaments longer; Ovary 6-loculed. The capsule is oval and spherical, 9 ~ 13mm long and 8 ~1mm wide, with 6 petals. Seeds have wings. The flowering period is from June to September, and the fruiting period is 10- 1 1. The older the trunk, the smoother it is. If you touch it with your hands, the whole plant will tremble slightly

Yang Wanli, a poet in the Song Dynasty, praised: "It is better to be infatuated, especially to expose and oppress the wind." Who knows that flowers bloom for a hundred days and crape myrtle grows for half a year. Xue Hui of the Ming Dynasty also wrote: "Osmanthus fragrans is the longest, rotten for ten days, and new flowers continue to grow branches after summer and autumn. "Northerners call crape myrtle' monkey thorn',

This tree is too slippery for monkeys to climb. Its beauty lies in its lack of bark. Scarcity is the most precious thing. How many trees in Qian Qian are skinless? Young Lagerstroemia indica trunk, annual epidermis, annual self-shedding, epidermis

The trunk looks fresh and smooth after falling off. Old Lagerstroemia indica, the tree body does not revive the epidermis, and the tendons are quite exposed, smooth and flat. When Lagerstroemia indica grows up, the trunk epidermis falls off and is smooth and skinless. If people touch it gently and stand

That is, the branches will shake the leaves, the whole body will tremble, and even make a weak "giggle" sound. This is a whole-body reaction of its "tickling", which is really amazing. [6] Edit the pharmacological analysis of this paragraph

Ziwei alias: itch tree, bauhinia [Sichuan], Zijinbiao [Jiangxi]

Source: Lagerstroemia indica, a Lagerstroemia plant with roots and skin as medicine. Picking peeled bark in summer and autumn and drying; Roots can be taken at any time.

Tropism of nature and taste: slightly bitter, astringent and flat.

Indications: promoting blood circulation, stopping bleeding, detoxicating and reducing swelling. Used for various bleeding, fracture, mastitis, eczema, hepatitis and ascites due to liver cirrhosis.

Usage and dosage: 25 ~ 100g.

Edit crape myrtle varieties in this section.

At present, the most complete varieties of Lagerstroemia indica are located in the Lagerstroemia indica base in Jiangsu: the branching point of Lagerstroemia indica is 1.5m, and the crown diameter of Lagerstroemia indica [7] is 10 ~ 100, and the number is about 1 ten thousand.

The main varieties of Lagerstroemia indica are:

Wei Zi: Flowers are purplish red.

(2) Cuiwei: blue-purple flowers and dark green leaves.

(3) Red tail: fireworks red.

(4) Yin Wei: The flowers are white or slightly cocoon-colored, and the leaves are light green. Large-scale clustered Lagerstroemia indica seedlings

Cuiwei, with the best blue petals, is a panicle with the top of a new branch, which is 20 cm long. Each flower has 6 petals, which is wrinkled like a roulette wheel. The tree is full of flowers, which is beautiful.

Such as Chardonnay, it is also called full house. The result is a capsule, which looks like soybean and contains many seeds. It expires on 1 1 month. Propagation and cultivation: the propagation of Lagerstroemia indica can be carried out by sowing, dividing plants and cutting. Sowing method

Seeds were collected in June 5438+065438+ 10, and the fruits were dried and threshed, then stored in dry storage and planted in March of the following year. After sowing, cover the seeds with a layer of fine soil and then cover them with straw. Edit the garden use of this paragraph.

Wei Zigan Peak bonsai, although the pile head is rotten, is luxuriant and colorful, full of ears, in full swing and colorful. Beautiful crape myrtle bonsai

Lagerstroemia indica, as an excellent ornamental tree species, is widely used in park greening, courtyard greening, road greening, block cities and so on. In practical application, it can be planted in front of buildings, courtyards, Chi Pan, rivers, lawns and on both sides of park paths. It is also a good material for making bonsai.

This section edits the cultivation management of Lagerstroemia indica.

Lagerstroemia indica should be planted in the leeward and sunny place with deep soil layer, fertile soil and good drainage. Large seedlings should be transplanted with the ball and the branches should be trimmed properly, otherwise the survival rate will be low. Apply decomposed organic fertilizer as base fertilizer in the planting hole, water it after cutting, and water it 1 time after 3 days. Lagerstroemia indica germinates late. Under normal circumstances, the leaves will only spread from mid-April to the end of April. Because of root injury, the germination of new plants will be delayed. So don't give up management just because you have no job.

After survival, the plant management is extensive, Lagerstroemia indica has strong vitality, is easy to cultivate, and has low requirements for soil, but it grows best when planted in deep and fertile sandy loam. Love the light, and should be planted in the lee or under the root of the south wall of the courtyard. If the light is insufficient, plants will not only spend less or not, but even grow weak and have small branches and leaves. Lagerstroemia indica is cold-tolerant, but at seedling stage.

Do a good job of cold protection and heat preservation, and the adult plants over three years need not be insulated. Lagerstroemia indica is drought-tolerant and afraid of waterlogging. Water it once a year before germination in spring and after defoliation in autumn. If it is not too dry at ordinary times, there is no need to water it.

Generally, water should be poured l ~ 3 times in spring drought, and drainage should be done well in rainy season to prevent water from rotting roots. Autumn is not suitable for watering. Fertilization can be applied after defoliation in winter and before germination in spring every year, such as applying human excrement or sesame paste residue, which can make plants

In the coming year, it will grow sturdily with large and colorful flowers. In order to make Osmunda bloom, pruning should be carried out during dormancy. Because the inflorescence of Lagerstroemia indica is planted at the top of the new branches in the same year, the annual branches should be pruned and retracted when pruning, so that the nutrients are concentrated and the branches are strong. Long branches, dead branches, drooping branches, pests and diseases branches, slender branches and endogenous branches should be cut off, and the side branches of Lagerstroemia indica at the lower part of the main trunk should be cut off in time during the young tree period, so that the upper part of the main trunk can obtain sufficient nutrients and form a good crown.

Lagerstroemia indica cultivation and management are extensive, but it is necessary to cut off dead branches, pests and diseases in time and burn them. In order to prolong the flowering period, the branches that have blossomed should be cut off in time so as to germinate again and grow the next round of flowers. In order to make the trunk thicker, you can cut off many flowers and concentrate on cultivating the trunk. Practice has proved that Lagerstroemia indica can bloom many times a year as long as it is properly managed, as long as 100 ~ 120 days.

Cultivation and sowing of Lagerstroemia indica

The seedlings of Lagerstroemia indica are planted with multi-tiller seedlings, and the root tiller seedlings can be transplanted from the tiller seedlings of wild shrubs, or fresh and robust seed roots can be harvested and buried (the length can be determined according to the thickness of the seed roots), and the planting time can be selected in early spring.

Attention should be paid to seed collection, seed storage and moisture preservation in the field when sowing and raising seedlings of Lagerstroemia indica. Seeds are usually collected in September-10, and when the fruit turns from green to brown, the seeds are cut, fried and kneaded. We should seize the opportunity to collect seeds. Seeds are immature too early, and naturally fall off or dry up too late.

Sow first, because the seeds are as big as tobacco seeds, and sowing is like "planting tobacco seedlings". Bed soil should be fine, sowing should be even (with sand), covered with fine soil and covered with straw to preserve moisture. When Lagerstroemia indica seedlings germinate, we should pull out the straw for moisture conservation in time, but we should also pay attention to keeping the seedbed moist.

In early April, select the excellent seeds collected in the previous year. Before sowing, you can soak the seeds in warm water or cold water at 40℃ to make them absorb water. Then, shallow furrows are opened on the prepared border according to the row spacing of 30cm, and seeds are sown in the furrows with the dosage of 14-20kg per mu. After sowing, the soil is lightly covered with the thickness of 0.5- 1cm and slightly pressed. Under the condition of 20℃,/kloc-0 can germinate in 5-20 days.

When the seedlings grow to 3 cm, the first thinning is carried out in combination with weeding, mainly to remove the pile of seedlings and improve the ventilation and light transmission conditions. When the height of seedlings reaches 5 cm, the second thinning is carried out.

When the plant spacing is 10- 15 cm, about 3000 plants are left per mu. June-August is the fast-growing period of Lagerstroemia indica. Combined with watering, 40 kilograms of three-element compound fertilizer of nitrogen, phosphorus and potassium should be applied per mu, so as to achieve less application and more application, and * * * fertilization 3.

Time. It rains for a long time and should be drained in time to prevent waterlogging. At the same time, combine weeding and intertillage for 3-4 times. When the seedlings are damaged by aphids or yellow thorn moths, 2.5% dichlorvos can be killed by 2000-3000 times or 50% parathion.

Prevention and control; If powdery mildew occurs, 70% thiophanate-methyl can be used to control it. Under this management, Lagerstroemia indica seedlings can reach 60 cm in that year. [8] Edit the section on reproductive management.

Propagation technology Lagerstroemia speciosa has beautiful figure, smooth trunk, bright color and long flowering period, which can reach more than 100 days in summer and autumn. It is a good ornamental, which can be used not only for beautifying courtyards, parks and green spaces, but also for potted viewing. Lagerstroemia indica likes sunshine, is slightly tolerant to shade, drought and waterlogging, and is strong in pruning. It grows well on calcareous soil and has strong cold resistance. Lagerstroemia indica can be propagated by sowing, cutting, layering, dividing plants, grafting and other methods.

Sowing propagation

A large number of healthy and tidy seedlings can be obtained at one time. 165438+ 10 ~ 65438+February, collect mature seeds [9], remove the pericarp, dry the seeds slightly, and put them in a container for drying and preservation. In March of the following year, the sandy loam seedbed was planted with wide banners or spread, covered with a layer of fine burnt marl and covered with grass, so that no seeds could be seen. Germinate for more than 10 days, uncover the grass in time, and sow after the rain when two pairs of true leaves appear; Weed frequently in seedling stage, topdressing 2 ~ 3 times in June ~ July, irrigation in summer to prevent drought, the height of seedlings at the end of the year is about 40 ~ 50 cm, and they can bloom in the same year when they grow vigorously, so they should be cut off in time and transplanted and grown up in the spring equinox the following year.

cutting

Cutting propagation of Lagerstroemia speciosa can be divided into hard branch cutting and soft branch cutting.

Hardwood cutting is generally carried out in the middle and late March to early April before the branches germinate. Select stout annual branches, cut them into cuttings with a length of 15cm, and insert them into a loose and well-drained sandy loam seedbed. The cutting depth shall be subject to exposing the top buds of the cuttings. After insertion, it is filled with water and covered with plastic film to keep moisture and heat. When the seedlings grow to 1.5 ~ 20 cm, the film can be uncovered, replaced with sunshade nets and watered in time, and the branches can grow to about 60 ~ 80 cm in that year.

Softwood cutting is carried out in July and August, when the new branches grow vigorously and have the most vitality. Select semi-lignified branches and cut them into cuttings with a length of 8 ~ 10 cm, leaving the upper end.

2 ~ 3 leaves. The cutting depth is 3 ~ 4cm. After transplanting, irrigate with water and build a shade shed to shade, and it will take root in about 20 days. Remove the film, keep the sunshade net, water it in time, and the branches can grow to.

About 60 ~ 80 cm, the survival rate is very good.

separate

Dig out the roots of tillering seedlings that germinate in the rhizosphere of plants in early March-April or autumn, properly prune the roots and branches, and plant them separately. Small seedlings can be bare-rooted, and big seedlings should carry mud balls. During the tending period, they should be pruned and trimmed frequently to maintain a beautiful tree shape and promote the flourishing of flowers and branches.

Stratified propagation

Lagerstroemia indica can be propagated in layers throughout the growing season, especially in March-April in spring. In the air layering method, branches of 1 ~ 2 years old can be selected, cut and girdled with a sharp knife to expose xylem, and rooting powder solution can be applied about 3 cm above the cut part (diluted according to regulations). When it is dry, put a cylindrical plastic bag around the cut part, fill it with loose garden soil, water it and tie it tightly at both ends, and check it after one month. If the soil is too dry, it can be hydrated and moisturized.

Grafting method

There are several varieties of Lagerstroemia indica, such as Yin Wei, whose flowers are white; Cuiwei, the flowers are blue-purple and lavender; Red, pink, crimson, etc. ; Several annual or biennial branches with different colors are grafted on the same tree, and the survival rate is above 98%. The specific method is: from late February to early March, before the branches of Lagerstroemia indica sprout. When grafting, the well-developed seedlings are selected as rootstocks, and the branches of the required color are used as scions, and the splitting method is adopted. First, the top of the rootstock near the periphery is split longitudinally with a knife with a depth of about 5-8 cm, and then the scions with more than 2 buds with a length of 5-8 cm are cut into wedges.

Insert the rhizome and align with the cambium. Then wrap the whole spike with plastic film to expose the bud head. This method is used to graft branches of different colors on the same rootstock in layers to form multi-color trees. After 2-3 months of grafting,

The film can be loosened. At this time, the length of the ear head can reach 50 ~ 80 cm. Branches should be cut short in time to avoid being blown off by the wind and can be cultivated into thick branches. The survival rate of plants cultivated in this way is very good.

The author summed up the following conclusions from years of practice: among the five propagation methods, the color of seedlings cultivated by the latter four methods maintained the excellent performance of scions. However, there are many buds and branches produced by plant cutting and division, which need to be removed in time. If it is necessary to cultivate trees with a height of 3 ~ 6 meters, the seedlings propagated by sowing method are better, and the side branches produced are obviously reduced, but the colors of seedlings propagated by sowing method are easy to vary.

Stratification in winter and spring

The stratification time is generally 1 1 to February of the following year. First of all, in the whole nursery

According to the row spacing of 40 cm, the ditch depth is 20 ~ 30 cm, and 2 ~ 3 cm of cow dung or horse manure is applied in the ditch as the base fertilizer. Combined with pruning in winter and spring, healthy plants with excellent varieties, large flowers, bright colors and no pests and diseases are selected as mother plants and harvested.

Take well-developed annual or biennial branches with a diameter of 1 ~ 4cm and unlimited length. After soaking in clear water for 2 hours, it will be buried obliquely along the ditch, then the root will be covered with soil, and the upper part will be rolled along the ditch, and the soil will be covered 10 ~ 15cm.

Thick, and once watered, tightly covered with plastic film to keep warm and moist, and covered with 2-3 layers of thatch to prevent freezing. In sunny weather, thatch can be removed during the day to keep warm and then covered again at night. In this way, it can germinate and grow in mid-March, and you can see the buds exposed on the ground in April. At this time, you can make a small arch shed again, cover it with plastic film and remove the grass. If the temperature in the shed exceeds 30℃, ventilate and cool down. From the middle of March, the film was uncovered every 20 days, and the soil was cultivated along the ditch for 3-4 times, so that the base of the seedling was changed from the original height to a ridge with a height of 10 cm, and a large number of adventitious roots were produced. At the end of May, the arch shed will be demolished, and the seedlings will be pruned in sections according to the sprouting situation, and each sprouted seedling will become an independent seedling. At this time, it is necessary to top, promote the development of lateral branches, apply farmyard manure once, such as pancake fertilizer water or urea water, and then cultivate the soil along the ditch to promote growth. After topdressing 3 ~ 4 times, if there are buds and

When it is sparse, it will generally become a full-crowned, leafy plant in that year. After autumn, take soil for seedlings in rainy days, try to avoid damaging capillary roots, and move to a place with plenty of sunshine and water and fertilizer. Control water and fertilizer after survival.

Enhance its adaptability. Comparatively speaking, under the same conditions, Lagerstroemia indica seedlings propagated by this method not only have developed roots, high transplanting survival rate, but also have better crown shape than other propagated seedlings. Through observation, many vines can also be propagated by this method, such as wisteria, Lingxiao, forsythia and so on. Plastic trimming

Lagerstroemia indica should adopt evacuation layered shape or natural happy shape, which used to be flat-headed Lagerstroemia indica [10]

( 1)

Flat-headed modeling. Pull out 1 year-old seedlings in winter, remove the main thick branches and keep the auxiliary branches. When the new branch is about 30cm long, the main branch is selected for extended branch culture, and the rest is pruned to inhibit the side branches and promote the main branch. In the growing period (dormant period), the tree is 2m high, so it stays.

1.7m Remove the top, cut off all secondary branches, and remove the auxiliary branches from last year's trunk. In the spring of the following year, many new branches were cut and grown, and 3 ~ 4 main branches with suitable directions were selected at the upper end of the trunk for cultivation, and the rest were smoothed and in the growth period.

The middle and lower parts of the inner trunk germinate and smooth, and the main branches are shortened by +0/3 in winter. In the winter of the third year, 3-4 new branches germinated at the top of each main branch, and 2 branches remained in dormancy period, which were extremely heavy and short-cut, and the rest were smoothed to form a flat head. After maintenance and pruning,

Every year, the new branches are particularly heavy and short. 2 ~ 4 new branches grow in the growth period, 2 branches are sparse in summer, and the top branches are left. After this, pruning is repeated, so that the top of the main branch forms a fist-shaped protrusion, and new branches string together when flowering. In this way, trees tend to grow early.

Decline.

(2)

Naturally happy. This trunk is about 1.5m high. The annual seedlings of/kloc-0 were cut short and thinned twice, and the buds in the plastic belt were left under the cut in the next spring, and the rest were smoothed. When the new shoot is 20 ~ 30cm long, select the trunk.

Extension branches, the rest are cut 1/2 to promote the vertical growth of main extension branches. In the winter of the following year, the trunk extension branches were shortened at 1.5m, and the secondary branches under the mouth and the auxiliary branches left in the first year were thinned. In the next spring, leave 3 ~ 4 buds under your mouth and let them grow.

Long, other cut short, increase the amount of leaves. Long branches, naturally open and grow obliquely, become the main backbone branch when the first main branch at the top is upright, and the summer shears will retract to the upper part of the main branch, while the other three branches grow obliquely and the others are supported (in the first year).

All the branches are sparse. In the next growing season, from June to July, in order not to let the main branches stretch too long, it is necessary to pick the heart and promote the secondary branches to increase the flower position. In the third winter, we should cut off three main branches to extend the branches, and leave the outer buds at the cut to enlarge the crown, and trim or cut off the cut appropriately.

Nearly secondary branches, but the main branches are longer than the side branches. For each main branch, the first side branch should be left 50cm away from the main branch, and the length of the short section of 1/3 should not exceed the top of the main branch. Select the side branches on other main branches and distribute them accordingly. bough

Other branches on the tree are sparse, leaving only 2-3 buds as flowering mother branches, and cutting off inflorescences after flowering to promote the flowering of secondary branches. In the winter of the fourth year, the crown continued to expand, the main branches continued to lengthen and cut short, and the first side branches and all of them were cut short at the same time.

If the flower branch is extended and short, it should be light and the flower branch can be short. Generally, two or three buds can be left. The second side branch is left short about 30cm above the opposite side of the first side branch of the main branch, and the number of buds left depends on the size of the space. empty

Leave 3 ~ 4 buds ((3 ~ 4 flower branches) at intervals, cut off 1 ~ 2 branches at the top in winter, and leave 2 ~ 3 buds at the back two branches, and repeat this method in the following years. If there are long branches, the growth should be gradually controlled in winter and the branches should be thinned. A few years later

If the crown expands too much, it must be retracted to the original main branch and replaced with a good side branch at the back, and other side branches should be retracted accordingly. However, the priority should be clear and the branch potential should be roughly balanced.

(3)

Heart shape with sparse layer delay. 1 year-old seedlings are short-cut, and 3-4 new branches are issued in the following year. Take the first branch after cutting as the main extension branch, continuously pull out 2-3 new branches under it, and control the growth to be the first layer of main branches. The next winter, branches grew out of the trunk.

Short-cut 1/3, the first layer of main branches is short-cut, and the buds are cut off to leave the outer buds, which weakens the growth and promotes the growth of main branches. In summer, new branches grow again, and then two branches interlaced with the main branches of the first layer are selected as the main branches of the second layer, and those that are not selected are picked.

Control growth. In the third year, as in the previous year, the trunk will be shortened and extended, and the rest will be kept as the third layer main branch, and the rest will be shortened to control the growth, and a certain number of flowering basal branches will be cultivated, and no more trunk will be added in the future. Only in the main branches every year.

Select and leave lateral branches at all levels, and arrange flowers in the crown. Leave 2 ~ 3 buds on the flowering base branch, cut off the first two branches in the following year, and leave 2 ~ 3 buds on the third branch, which is repeated every year.

(4)

Dry and clustered. Many trunks were branched from the roots, and after a certain height of trunks was cultivated, meristems were clustered. Pruning is mainly in dormancy period, supplemented by growth period. Prune long branches and competing branches usually after defoliation or before germination in early spring.

Weak branches, diseased branches, dead branches, etc. The remaining branches are cut off at the top of 1/3. Cut off the flower branches in time after the first 1 flower in summer. In addition, Ziwei can also adopt natural round-headed shapes and various artificial shapes, such as flowers.

Bottles, screens, arches, etc. Bonsai making

Drawing material

Lagerstroemia indica

Sowing and propagation: cut mature ear in June 10 ~ 1 1, dry and crush, take its seeds and store them in dry, and sow in March of the following year (no need to accelerate germination). After sowing, cover it with a layer of fine mud and then cover it with straw or straw.

2 ~ 3 weeks after the emergence of thatch, grass should be uncovered in time. When the seedlings grow two pairs of true leaves, they should be shaded, thinned, weeded, loosened and fertilized. In that year, the seedlings can grow to about 40 cm tall.

(2) Propagation by ramets: Because the root system of Lagerstroemia indica has strong tillering ability, propagation by ramets was carried out in June+10/October, 5438, and the rooted plants were dug up one by one, separated with sharp edges and planted separately from the roots; Or in the rhizosphere near the old pile, select tillers with fibrous roots, cut them down with a sharp knife, and plant them in nurseries or pots to raise blanks. Generally, they can bloom in 2 ~ 3 years.

(3) Cutting propagation: Cutting propagation is a common method to make miniature or small Lagerstroemia bonsai, which is quick to form. Before sprouting in early spring, cut off the branches born last year and they will bloom that year; Or in July, cutting semi-lignified branches, and flowering in 2-3 years; Or when digging old piles, the truncated thick roots will be cut off. Generally, the length of cuttings is 10 cm ~ 15 cm (or the length of cuttings and Wei Zi depends on creativity and conception).

Strong branches are inserted into loose soil and properly shaded to keep the soil moist. After cutting, the new roots have basically grown well, except in the morning 1 1 until 3 pm, you can bask in the sun properly and cut them lightly once.

New branches, promoting lateral branches and developing into crown; Or according to the creator's creative ideas and ideas, cut the ribbon to remove unnecessary branches on the landscape pile, adjust the blank, and take them down with a saw or a sharp knife (the length of branches on the landscape pile depends on needs), and the incision should be

Inclined slideway, take and insert at will. Before cutting, soak the pile foundation with 100ppm α -naphthylacetic acid aqueous solution and ABTI No.2 rooting powder for 2 hours. After treatment, cuttings take root early and the root system is developed, which can improve the survival rate. choose

Two parts of common sandy loam or sandy soil with good air permeability and three parts of organic fertilizer were mixed as pot culture soil. The landscape piles treated with root promoter are directly put into the pot, compacted, watered by water, shaded, and fixed with brackets to stabilize them and keep the soil moist. After the leaves grow out, they are often sprayed with water, and after taking root, they can take root in more than a month. At this time, 0. 1% urea should be sprayed on the leaves. After the root system is very strong, enter the normal fertilizer and water management and full sunshine (that is, no shading).

④ Excavation in Shan Ye: A. It is suggested not to dig Lagerstroemia indica stumps at will in nature reserves, around residential buildings and beside roads to avoid damaging the ecological environment.

Environment and residential buildings and roads. B. The excavation time is generally from the first ten days of 10 to before germination in early spring, and the cold season and dry weather should be avoided as far as possible. When digging, first take thick roots, thick cakes or hollow trunks, which look like

After digging out the old pile head with wrinkles and strange rocks, plant it directly in the basin, or plant it in moist, fertile, loose and breathable soil for cultivation, and then move it into the basin when the root system resumes growth and the branches and leaves are lush.

Shangpen

① Selection of basin: Choose purple sand pottery basin or glazed pottery basin.

② Soil: The cultivation soil requires loam with rich organic matter and good drainage, and 5 parts of humus soil or sandy soil (wet mud sand), 2 parts of burnt soil (fire stupid) and coal cake ash 1 part can be selected for full mixing.

③ Planting: Transplanting is generally carried out after defoliation in autumn and before germination in spring. Because crape myrtle should be transplanted with soil balls as far as possible in order to protect fibrous roots. At the same time, some branches on the basin have been replenished.

Line trimming. Pay attention to pad the drainage holes at the bottom of the basin before planting to prevent water accumulation; When planting, the root system should be stretched and not bent in the basin soil; Pay attention to the correct positioning and adjust the posture and position of the stump; After planting, we should strengthen management, often water the pot soil to keep it moist, put it under a shade shed for a while, and then move it to a sunny and ventilated place when it grows vigorously.