Propagation methods and key points of cultivation and Management of Phyllostachys pubescens

How to breed the bonsai of southern bamboos? The flowering period of Phyllostachys pubescens is usually from May to June, while the ripening period is about October to November. Like the warm growth environment, suitable for growing in humus-rich sandy soil, let's learn the key points of cultivation and conservation of Phyllostachys pubescens.

1 methods of reproduction

Phyllostachys pubescens is mainly sown and ramets. Sowing is carried out when the fruit is ripe in autumn and sows as it is picked. Covered with grass in winter, seedlings can emerge before Qingming Festival, shade in summer, often watered, keep the soil moist, 3-4 years to blossom and bear fruit. Ramet is carried out before bud germination, and this method is often used in family reproduction.

1.1 ramet method

In spring and autumn, the clump-shaped plants were dug out, shook off the soil, and cut off from the weak combination of roots, with 2-3 stems in each clump, with part of the root system, and some large pinnately compound leaves were cut off at the same time, planted on the ground or potted, and could blossom and bear fruit after 1-2 years of culture.

1.2 cutting method

Spring planting is mostly used, the time is from February to March. Select 1 ~ 2-year-old stem, cut off the ear segment of growing 20~25cm, cut off most of the leaves (preferably retain the top bud), and insert them into the sandy loam seedbed after treatment with rooting powder. The depth is about 1 × 2 ~ 2 × 3 of the ear length, the spacing is about 5cm, the row spacing is 10~15cm, and water is thoroughly watered after insertion. It is necessary to build a shade after the beginning of summer, which usually takes root after 1 month. It can also be cut in the rainy season or autumn, the method is the same as that in spring, but the cutting substrate is yellow soil, or it can be mixed with alkaline rice chaff ash and fine sand at the ratio of 1 ∶ 1. The panicle can be cut in the same year, covered with film to keep moisture and shade in time, and can take root after one month.

1.3 sowing method

The seeds were collected in autumn and sown immediately after harvest, and the plant ash and fine soil were covered after sowing and pressed. In the second year, the seedlings grow slowly, weeding and loosening the soil frequently, and applying light human and animal manure; attention should be paid to weeding and topdressing every year, which can be planted in the nursery after 3 years of cultivation; transplanting should be carried out after spring rain; before planting, the seedlings should be dug up with soil, if they cannot carry soil, they must be dipped in the root with thin mud to survive easily after planting; in the first year after planting, weeding and topdressing should be done in spring, summer and winter respectively, and at the same time, the missing seedlings should be replanted at the same time. From then on, it will only be ploughed and weeded and fertilized once a year in spring or winter. When digging roots in winter, cut off the rooted seedlings of the old plants and plant them, and the cultivation method is the same as the seed propagation method. After planting for 4 ~ 5 years, some of the old stems can be cut in winter. After 6-7 years, the whole plant can be dug up, the soil can be shaken off, the leaves can be removed, and the stems and roots can be broken into thin slices and dried in the sun. When the fruits turn red or yellow and white from October to November, they can be harvested and dried.

2 key points of cultivation and management

2.1 planting

Strict requirements for soil, like deep, fertile and well-drained loam. Potted plants should be changed in early spring every year. When changing pots, part of the old soil and roots should be removed, basic fertilizer should be applied and new cultivated soil should be filled. Pot plants in spring to change pots, appropriate thinning of old branches, with fertile, loose sandy loam. When it blossoms in the rainy season, it can be pollinated artificially to make the result good. Nantian bamboo trees are chic and unrestrained, red fruits and roots have ornamental value, can dig old piles, take soil on the basin, make bonsai, can develop clump type or single dry type. Because the blossoms and fruits are on the new shoots, pruning is carried out before germination in spring to promote the germination of new branches.

2.2 Water and fertilizer

Nantianzhu likes to be moist but afraid of stagnant water, and the watering times should increase or decrease with the weather during the childbearing period. Generally, it is watered once a day in spring and autumn, in summer in a well-ventilated shade, watering twice a day, and spraying water to the leaf surface and nearby ground for 1 or 2 times, in order to increase air humidity and reduce temperature. During flowering, watering time and water need to be kept stable to prevent sudden increase and decrease, wet and dry. Plants are semi-dormant in winter, so watering should be controlled. Nantianzhu likes fertilizer, applying dilute pancake fertilizer water once every 15 to 20 days in May and September, and watering 0.2% ferrous sulfate about once every 2 months. Move into the room in the first and middle of October and put it in a place of direct sunlight without freezing at room temperature.

2.3 Sunshine

It is best maintained in semi-shade, cool and humid places, under strong light, the stem becomes dark red, the young leaves are "burned", and the adult leaves turn red; in very shady places, the stems and thin leaves are long and the plants are loose, which is harmful to ornamental value and unfavorable to fruiting.

2.4 temperature

The suitable temperature for growth is about 20 ℃, and the suitable temperature for flowering and fruiting is 24-25 ℃. The temperature in winter is very strict, and the growth stops when the ambient temperature is below 8 ℃, so it should be moved into the greenhouse in winter.

2.5 pruning

Phyllostachys pubescens should pay attention to pruning, cut off the sprouting branches and dense branches from the roots during the growing period, cut off the longer branches of the ear, and leave 1 or 2 lower branches, so as to keep the plant type beautiful and facilitate flowering and fruiting.

(3) Prevention and control of main diseases

3.1 Stem blight

The diseased branches were eradicated in time and destroyed, and 500 times of daconine glue suspension was sprayed in winter.

3.2 Liu's short beard mite

Spray 3 °Be stone sulfur mixture + 0.3% synthetic washing powder in early spring; pay attention to branches, bark cracks, etc.; when a large number of cases occur, you can choose to spray 40.7% Lesbon EC 1500 times, or 73% carbamate EC 2000 times, leaf back, petiole and other places should be sprayed.

These are all the key points of Nantian bamboo culture methods. If you have bamboos in your home, you can come and learn!

The cultivation method of Phyllostachys pubescens is also known as Tianzhu. Berberaceae, Phyllostachys pubescens. It is originally from China and Japan.

Morphological characteristics: Phyllostachys pubescens is an evergreen erect shrub with clumpy branches, rarely branched, brown, and young branches are red. Leaves opposite, 2-3-pinnately compound, mostly pinnately compound. Leaf sheath clasping stem, leaflets leathery entire, elliptic, apex acuminate. Panicle terminal, flowers white, florescence May-June. The berries are globose and red when ripe. The root is yellow and hard, and the fruit is from October to November.

Habits: Nantian bamboo likes a warm and humid environment and is more resistant to shade. It's also hardy. Easy to maintain. Cultivated soil requires sandy loam with fertile and good drainage. The moisture requirement is not very strict, and it can withstand both moisture and early. Prefer fertilizer, but apply more phosphorus and potash fertilizer. Liquid fertilizer was applied twice a month during the growing period. After several years of viewing, the branches and leaves of potted plants are aging and shedding, which can be pruned. Generally, the main stem can be pruned around 15cra, which can be pruned in April, and can be restored to the height of lm after autumn, and the crown is plump.

Key points of propagation: Phyllostachys pubescens is mainly sown and propagated separately. Ramets are usually carried out in spring. Sowing seeds can be sowed immediately or in spring after the seeds are collected in winter. It takes 4 years for Mel to grow 50cm and begin to blossom. In addition, cuttings can also be used to raise seedlings. The cuttings are selected from 1-year-old branches with a length of 10-15cm, which can be inserted in a sand-soil mixed seedbed. From May to June, before the new buds germinated or when the new shoots stopped growing in summer, the cuttings could take root in 40 seconds and 50 days. Seedlings can be divided into two seasons in spring and autumn. The cultivated soil should be kept moist and watered too much during flowering so as not to cause falling flowers.

Brief history of cultivation and flower culture: the branches of Phyllostachys pubescens are as tall and straight as bamboo, the feathered leaves are beautiful, turn red in autumn and winter, and the spikes are full of red fruits. The poem of Yang Mingzhai in the Song Dynasty said: "the flower hair Zhu Mingyu becomes lighter and round the day after tomorrow, and there is no one in the world who can cure the heat of the world, as long as the light incense is pure karma." describes the small white flowers in full bloom after the summer rain, and the branches are covered with lovely little round fruits, which makes people forget the summer heat, and the fragrance of the flowers relieves worries and brings happiness.

Garden uses: Nantian bamboo, spring tender leaves, summer white flowers, autumn and winter fruits, red, white and green, are very rare indoor foliage, flowers and fruit plants, planted in the courtyard or as a potted plant, placed on the outside of the foyer or by the pool in the hall. The southern bamboo fruit branch is often bottled with blooming wax plum and pine branches, which is compared to the three cold friends of pine, bamboo and plum. In the garden, it is often planted in front of the courtyard house, at the edge of the grass or at the corner of the garden road, which is often planted with rocks, grass and rhododendron. Cultivation techniques of Phyllostachys pubescens

Phyllostachys pubescens (Nandinadomestica) belongs to the genus of Berberaceae.

I. Overview:

Delicate branches and leaves, autumn and winter leaves turn red, and red fruit, lasting for a long time, bright and lovely. It has been cultivated in China since ancient times. it is not only a common foliage and fruit plant, but also a traditional cut flower family.

Second, ecological characteristics:

It is originally from China and Japan. Like a warm, humid and semi-overcast environment. More cold-resistant, afraid of strong light exposure, afraid of drought, not resistant to water and moisture, strong tillering ability. The suitable temperature for growth is 1525 ℃, and it can withstand low temperature of-5 ℃ in winter. The soil should be sandy loam with fertile and good drainage.

3. Reproductive skills:

1. Sowing: sowing after seed collection in November, sowing in the open field after sowing, sprouting in April of the following spring, seedlings need shade maintenance.

2. Ramet: it can be carried out in early spring or autumn. The mother plants with dense clusters were separated from the roots and soaked in mud before planting.

3. Cuttage: in the rainy season. Cut 1-2-year-old branches, 15-20 cm long, inserted into the sand bed, 40-50 days after rooting.

4. Main points of cultivation:

Seedling transplanting should be carried out at the time of bud sprouting from February to March. Cut off the dried inflorescence after falling fruit every year to keep the plant clean and tidy. Generally, the ramet is once in 3-4 years. If there are too many ramets, the growth and fruit will be affected. After autumn, the tree trunk can be thinned or cut off, and the new branches germinate more vigorously in the following spring. Pot soil should not be too dry, watering should not be too much, foliar spray in midsummer, increase air humidity. Flowering period, such as too much watering or strong light exposure, easy to fall flowers. Fertilization was applied once a month during the growing period, and stopped in autumn.

5. Disease and pest control:

Rust, leaf spot and anthrax are common, and can be sprayed with 600 times of 70% mancozeb wettable powder. Insect pests are harmful to night moths, shell insects and aphids, which are sprayed with 1500 times of fenitrothion EC.

VI. Application of green decoration:

The leaves and fruits of Phyllostachys pubescens have high ornamental value. In the classical gardens in the south of the Yangtze River, they are often planted behind the courtyard houses, in the shade of the corners and by the banks of the mountain and stone ponds, showing more simplicity and elegance. Chinese folk commonly used Nantian bamboo, wax plum, pine vase, decorate the hall, study, with a strong cultural flavor. It is more used for potted plants or bonsai production, and it is also a good material for decorating windowsills, mirrors and foyer.