Which is more expensive, Australian fir or yew? the price of Australian fir bonsai ranges from 400 to 1200 yuan.

Raising plants indoors has become a popular trend, for which many flower lovers love bonsai, and as the best in bonsai, Australian fir and yew are naturally loved by more people. If you want to keep it, you have to know the price. What about the price of Australian fir bonsai and yew bonsai? Which is more expensive, Australian fir or yew? Next, let's go with the editor to have a look.

Which is more expensive, Australian fir or yew (1) the price of Australian fir bonsai

According to the shape and size of Australian fir bonsai, the price is also different. According to the editor's inquiry, according to the prices of many flower shops, the price of Australian fir bonsai is generally between 400 and 1200 yuan. There are also some small bonsai, it is estimated that one or two hundred can get a pot, but it is not very good-looking.

(2) the price of yew bonsai

As a natural and precious plant that has attracted much attention, the yew bonsai is very famous. As for the price, it varies greatly according to the specifications, from a few cents to tens of thousands. According to the editor's inquiry, the price of yew bonsai on the market is mainly calculated on the basis of the height of the yew. The specific criteria are as follows:

The height is 50 cm and 25 yuan.

The height is 60 centimeters and 60 yuan

The height is 70 cm and 80 yuan

Height 90 centimeters 100 yuan

The height is 130 yuan per meter.

The height is 2 meters and 400 yuan.

So which is more expensive, Australian fir or yew? According to the above content as the standard, it is obvious that Australian fir is more expensive, of course, this is a special exception for ordinary bonsai. Next, let's take a look at the role of Australian fir bonsai and the meaning behind it.

Second, the bonsai function of Australian fir

1. Ornamental function

When it comes to the role of Australian fir bonsai, first of all, it is naturally a strong ornamental. As shown in the picture above, the Australian fir plant has a beautiful shape, especially its leaves, which are evergreen all the year round. It can be made into bonsai, no matter in the living room or in the office.

2. Beautification

In the bonsai of Australian fir, it also plays a certain role in beautiful home. In addition, Australian fir is also good for people's eyes, if the eyes are tired, you can stare at it for a while, the eyes will be much more comfortable. Not only that, often watching it when you are free can also prevent your eyes from getting dry and astringent.

3. Purification effect

As a green plant, the efficacy of Australian cedar has a strong use in purifying the air. It not only absorbs carbon dioxide and releases oxygen, but also is a natural humidifying device that adjusts the humidity of the air in the room and makes the air at home cleaner.

4. Fengshui action

In plant fengshui, Australian fir also has a very good effect, put it in the spacious living room can play the role of attracting good luck. In addition, putting Australian fir in the wealth position of the family can bring more prosperity and wealth to the family and improve the fengshui fortune of the owner of the family.

5. The moral of Australian fir

The moral of Australian fir is also extremely beautiful. If there is a businessman in the family, it is very suitable to raise a pot of Australian fir, which means that business can be as evergreen as a tree, and people can stand like a tree.

Generally speaking, as the best bonsai, both Australian fir and yew are very beautiful. So excited, conditional flower friends can get a pot home to take a look, will not raise can take a look at the Australian fir culture method (yew culture method). With regard to the price of Australian fir bonsai, and the price of yew bonsai, the editor has introduced this, hoping to give you some help.

Efficacy and function of yew-yew | how to raise yew | Price | Picture of Taxus, also known as Yew, is a plant of the genus Taxus. Taxus is a shallow root plant. Its main root is not obvious and its lateral root is well developed. it is recognized as a natural rare anticancer plant on the verge of extinction in the world. It is an ancient relict tree species left over from Quaternary glaciers and has a history of 2.5 million years on the earth. Due to the slow growth rate and poor regeneration ability of Taxus under natural conditions, there has been no large-scale yew raw material forest base in the world for a long time. Culture methods of Taxus mairei

1. Lighting: the yew sex likes a cool growth environment, so in the process of breeding, it is necessary to shade the light properly and should not be placed in a place with direct sunlight, which will make the water of the yew evaporate quickly, leading to dehydration of branches and leaves and dry leaves. In the middle of summer, the yew can be placed in the living room, balcony, corner and other places during the day, and then put on the windowsill to breathe in the evening. At the same time, the lack of light will also affect the growth of yew, so in the climate where the sun is not strong, it should be properly exposed to sunlight.

Efficacy and function of Taxus mairei

1. It has a powerful effect in treating cancer. Paclitaxel, extracted from the bark and leaves of the yew, is highly effective against a variety of advanced cancers and is called "the last line of defense for cancer treatment". The roots, stems, leaves and fruits of the yew are all treasures. Taxol extracted from the yew plant is mainly used in the treatment of advanced breast cancer, advanced ovarian cancer, esophageal cancer, nasopharyngeal cancer, bladder cancer, lymphatic cancer, prostate cancer, malignant melanoma and head and neck tumors, upper gastrointestinal cancer, small cell lung cancer and non-small cell lung cancer. Experience has proved that paclitaxel has a unique anti-tumor mechanism and significant anti-tumor effect.

Medicinal value of Taxus mairei

The medicinal value of Taxus mairei: 1. Cancer prevention and treatment

Taxol extracted from Taxus has the effect of preventing and treating cancer, and has no obvious adverse reactions. it is internationally recognized as a plant-purified anticancer drug in recent years, and its clinical application has a good effect on a variety of cancers. Clinical studies in the United States have proved to be effective in the treatment of ovary and breast cancer. In addition, it also has a certain effect on hypertension, diabetes and coronary heart disease.

Taxus mairei

The difference between Taxus mairei and Taxus mairei:

1. The growth rate of Taxus mairei is slow, with an annual growth of about 10-15 cm, while that of Taxus mairei is fast, with an annual growth of 30-50 cm.

Taxus mairei

Culture methods of Taxus mairei

1. Light. Mandia yew sex like shade, do not direct sunlight, put in the living room, bedroom, balcony corner can. In the evening, you can put it on the windowsill to make it breathable.

Taxus producing area

According to the growth region and biological characteristics, the yew in the world can be divided into 11 species. Except AUSTROTAXUS SPICATA from Australia, it is distributed from temperate zone to subtropical zone in the northern hemisphere.

Price of yew bonsai

Price of yew bonsai

Unearthed 30 cm high-seedling quotation-8 yuan

Unearthed 40 cm high-seedling quotation-12 yuan

50 cm high unearthed-- seedlings quoted price-- 25 yuan

60 cm high unearthed-seedling quotation-60 yuan

Unearthed 1 meter high-seedling quotation-100 yuan

Unearthed 2 meters high-seedlings quoted price-360 yuan

Unearthed 3 meters high-seedlings quoted price-680 yuan

Can I put the yew in the bedroom?

First, the biggest difference between yew and general plants is that it can release oxygen 24 hours a day. It is an all-weather oxygen-increasing tree species, which is especially suitable for indoor display.

Cutting technique of Taxus mairei

1. During the cutting period, Taxus can be propagated three times a year in March, July and November, respectively.

Second, to build a cutting bed, if you want to cut a small amount of yew, you can use pot cuttings, and if you have a large amount, you should build a cutting bed. The cutting bed is generally 2.5 meters wide, leaving a walkway 30 centimeters wide in the middle, about 20 centimeters wide with bricks around, 10 centimeters on each edge, putting a layer of coarse sand about 20 centimeters thick, and adding a small amount of sterilized nutrient soil. The cutting bed supports the arch frame, which is covered with plastic film for heat preservation and moisturizing.

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Taxus mairei

Taxus chinensis var. mairei is suitable to be planted in the north and south of China, and it has the characteristics of shade, drought and cold resistance, and the soil PH value is required to be 5.5-7.0.

The yew is up to 30 meters tall and has a breast diameter of 65-100 cm; the bark is grayish brown, reddish brown or dark brown, splitting into strips and falling off; big branches unfold, annual branches are green or yellowish green, and autumn turns green yellow or light reddish brown; biennial branches are yellowish brown, light reddish brown or grayish brown; winter buds are yellowish brown, light brown or reddish brown, glossy; winter bud scales are round or with obtuse ridges on the back Leaves striate, dioecious, seeds oblate. Seeds are used to extract oil and can also be used as medicine. Belongs to the shallow root plant, its main root is not obvious, the lateral root is developed.

Leaves spirally alternate, base twisted into distichous, strip slightly curved, long 1~2.5cm, wide 2~2.5mm, leaf margin slightly reflexed, leaf tip acuminate, leaf back with 2 broad yellow-green or gray-green stomatal bands, midvein densely covered with fine bumps, leaf margin green belt is very narrow, dioecious, male cones solitary in leaf axils, female ovules solitary on top of lateral short axis above rachis, base with disc-shaped aril. Seeds oblate-ovoid, 2-angled, seed ovoid, aril cup-shaped, red.

It is widely distributed in Lechang, Guangdong, Shaanxi, Hubei, western Anhui, Fanjing Mountain and Fuding Mountain in Tongren City, Sichuan Province, most areas in southwest Chongqing, Youyang Dabanying primeval forest, southern Gansu and so on.

With the exception of Australia's Austrotaxus Spicata, which is found in the southern hemisphere, the rest of the yew is produced in the northern hemisphere. There are 4 species and 1 variety of Taxus chinensis, which are distributed in most parts of China. Taxus mairei is mainly distributed in Changbai Mountain and Heilongjiang in Jilin Province, and a small amount in the mountainous area of eastern Liaoning. Taxus yunnanensis is mainly distributed in 16 counties in western Yunnan and prefecture with a total area of about 90,000 square kilometers, which is characterized by wide distribution, scattered growth, no pure forest and mostly scattered trees in the forest. Taxus mairei is mainly distributed in pure forests in eastern, southwestern and eastern Yunnan, mostly scattered trees in the forest.

Cultivation and Culture methods of Taxus mairei

Seed propagation

Taxus mairei is mostly propagated by seeds. After the seeds are ripe in November, the fleshy seed coat is washed and dried, then buried in a shady dry place with wet sand, covered with plastic film and grass curtains. The seeds should be turned twice a month in summer and autumn, and the seeds can be sowed and raised at the beginning of March of the following year. The seedbed should choose a leeward and well-drained slightly acidic sandy soil, with a bed width of 1 meter, a ditch width of 40 centimeters, a high ridge from east to west, and a steel plate 25 centimeters high and 4 centimeters thick on both sides of the ridge, with a depth of 10 centimeters. The bed soil requires deep ploughing and fine farming, and carbofuran is applied to control underground insect pests. Use vermiculite, river sand, peat, garden soil, and add carbendazim or methyl thiophanate and other fungicides, mixed into the matrix into the steel plate, 3-5 cm higher than the middle of the side plate. Cover with plastic film and seal and fumigate for 3 to 5 days before sowing. The seeds are distributed evenly on the bed, with about 200 seeds per square metre. After sowing, the seeds are slightly flattened with a wooden board, covered with mixed matrix soil 1 to 2 cm thick, and covered with grass curtains or plastic film for heat preservation and moisturization. Spray water properly in case of dry weather, generally sprouting and sprouting after 40 days. At this time, we should remove the plastic film or grass curtain, and set up a 2-meter-high shade shed above the seedling bed to cover the shade net to prevent direct sunlight. Keep the seedbed moist, build a low arch shed and cover the plastic film on rainy days to prevent too much moisture in the seedbed. Do a good job of drainage and ventilation of seedling bed, timely prevention and control of diseases and insect pests. Apply rotten fresh cake fertilizer and water every 10 days in the seedling stage, and avoid chemical fertilizer and concentrated fertilizer. After a year of careful maintenance and management, the height of the seedlings can reach 15,25cm and have 2 to 3 bifurcated branches. Transplantation can be carried out in early April. The planting land should choose leeward, dry, slightly acidic sandy soil rich in humus, with a depth of 20 cm and 5 kg of mature organic fertilizer per square meter. Rise high ridge, dig deep ditch, ridge width 100 cm, ditch width 30 cm. 5 rows per row, 20 cm between rows and 15 cm between plants. Transplant should be in cloudy days, should be moved with the species, need to transplant with soil balls. Immediately after transplanting, pour water once, and build a 2-meter-high shade shed on it, cover the shade net on sunny days, and remove it on rainy days and at night. Strengthen fertilizer and water management during the growing period, generally applying rotten cake fertilizer and water every 10 days. Do a good job in the control and management of diseases and insect pests. Strengthen shading and cooling in summer and spray water when necessary to create a cool and humid environment conducive to seedling growth. Taxus is not only an excellent material for making high-grade furniture, but also a medicinal material with great medical value, but also an excellent tree species for landscaping. With the maturity and development of its artificial reproduction and cultivation technology, the application range of Taxus will be more extensive.

When breeding seedlings with Taxus seeds, attention should be paid to the storage mode of seeds, mixed storage of sand seeds or temperature control treatment, which has a good effect on sprouting and breaking dormancy habits after overwintering. Before sowing, the seed coat should be rubbed, the seeds should be soaked in warm water and treated with chemicals and hormones. Shading after emergence is the key to raising seedlings. It can prevent the seedlings from burning at high temperature and keep it moist and translucent at 40%. The emergence rate of Taxus chinensis var. mairei and Taxus chinensis var. mairei can reach 7080%, and the seedling emergence temperature is required to be higher than 15 degrees.

The dynamic growth of seedlings was as follows: the plant height and stem diameter of seedlings grew slowly in the first two years of emergence, the plant height generally grew about 10cm a year, and the growth accelerated one year after transplanting. The annual increase of 3 ~ 5 years can reach 20~30cm.

Cuttage propagation

For the cuttage propagation of Taxus mairei, it is better to use twigs in spring and hard branches in autumn. Generally, low-shed shading should be done when cutting. Generally, the survival rate of cutting can reach more than 70%. While conventional cuttings are only about 3% to 20%. The shading rate is not less than 60%. The base of cuttings should be treated carefully. The humidity should be kept at about 750.85% intermittently at the beginning. Avoid water loss caused by strong winds.

The factors affecting the survival rate of cutting are generally: tree age, temperature, concentration of chemical treatment, substrate, season, humidity, variety, and other human factors and so on.

In the process of rooting in the first year, the aboveground part of cuttings grew slowly, but rooting rapidly and lateral roots developed. After transplanting in the second year, further shading treatment and seedbed management are needed. To ensure the corresponding environmental conditions, the growth is accelerated. The growth rate is the fastest in summer and slow in winter and spring. At this time, we should pay attention to the change of temperature, long-term drying can cause growth inhibition or sudden death. However, after the seedlings are strengthened in the seedling bed, the survival rate of Taxus mairei is very high. Rarely die and grow rapidly.

Seedling management

Temperature regulation

After cuttings, the ground temperature of the bed should be maintained at 18 ℃ ~ 25 ℃, the temperature in the shed should be 22 ℃ ~ 28 ℃, and the soil moisture should be 60% ~ 70%.

Seedling stage management

Observe the temperature and humidity in the plastic shed every day. When there are water droplets in the plastic film of the bow shed, there is no shortage of water. When there is no water droplets, it is lack of water. When there is no water, open the plastic film to receive rain or water properly. When the temperature in the shed reaches 30 ℃, the plastic at both ends of the arch shed should be opened in time for ventilation. Seal the plastic film after sunset to keep the temperature in the shed. Remove the upper shade net before snow and move it under the plastic in the bow shed to continue to shade to prevent direct sunlight on the seedlings. About 45 days after cutting, the cuttings began to take root, and basically took root in about 65 days, and 3-5 cm shoots could grow in the same year. After 2 years, transplanting can be carried out, when the root system is more developed and easy to survive. When it grows to 6-8 years old, the sapling is 80-90 cm high.

Weeding and disease prevention

Weeding should be carried out when the grass is just growing. If the grass is big and strong, it will be pulled out together with the seedlings accidentally, or the wind leakage will lead to the death of the seedlings, so it is necessary to pull the grass early and weed frequently to avoid the loss of water and fertilizer. Taxus seedlings are prone to root rot and stem rot in the rainy season. 70% Diexong 400 times liquid can be sprayed and irrigated: seedlings are easy to get leaf blight in the dry and high temperature season. Spray 1% Bordeaux solution to control.

Tissue culture

Tissue culture takes advantage of the totipotency and clonability of plant cells. The tender stem, needles, bark, cambium, aril and embryo of Taxus chinensis were used as explants for culture.

1. Taxus chinensis var. mairei was selected as explant, and a large number of tissue culture seedlings could be obtained in the laboratory after callus formation, rooting, seedling bud formation and so on. After substrate transplanting, seedling training, inspection and epidemic prevention, it becomes a vaccine for production.

2. The ratio of late to early callus formation of Taxus chinensis var. mairei was different among different species and different plants of the same species. At the same time, it is related to the type of explant, sampling site, collection season, light condition, medium type and so on.

Pot maintenance

First, try not to spray fertilizer on the leaves of the newly purchased yew bonsai just sprouting, because at this time the yew bonsai has not really survived or the leaves are too tender, if fertilization will make the leaves or buds shrink and curl. Thus affect the normal germination of new roots, foliar spraying water is not too much, to the foliar surface can see the spray of water but not dripping down for the degree. Spray two hours before dark in the afternoon, do not leave water droplets in the evening (especially when there is a large amount of water), otherwise it will affect the normal growth of tender leaves or the leaves will turn yellow, affecting the healthy growth of plants. The reverse side of the leaf can be sprayed more than the front, because there is a waxy protective film on the front of the leaf, which will hinder the absorption of nutrients and water, while the back of the leaf has no waxy layer, has more stomata and has a strong ability to absorb water and fertilizer. So the back absorbs faster and more than the leaf surface. Depending on the situation and the temperature, once a day or two or three times a day. Note that the room should be ventilated regularly.

Second, for the newly purchased yew bonsai, due to the damage to part of the root system when transplanting from the planting base to the flowerpot, the nutrient supply between the root and the branches and leaves is out of balance, especially for the bonsai with luxuriant branches and leaves. the evaporation of the leaf surface is greater than the absorption of the root system, and the top leaf curls and dries when the potted soil remains moist, so it is best to prune the branches and leaves properly to reduce the moisture of the branches and leaves. Excessive consumption of nutrients should restore root growth as soon as possible, and at the same time, watering should be controlled to keep the basin soil slightly dry, so as to facilitate root growth as soon as possible and speed up the restoration of normal nutrient supply. At the same time, Taxus has strong sprouting ability, especially the new branch growth ability is strong and resistant to pruning, and it will sprout new branches and leaves soon after survival. When necessary, plant rooting or rooting enhancers can be used to irrigate the basin soil every seven days or so, and continuously irrigate three or four times (using good quality products and not too much water) so that the roots can grow quickly and healthily. Restore the supply balance between roots and leaves as soon as possible, and make the yew grow well.

Third, as the yew bonsai is planted in the flowerpot with limited nutrients, it can only provide about half a year for growth, or now the plant shape is larger and the nutrient consumption is very large, so it is suggested that consumers had better replace the original pot as soon as possible after purchase. Because our company for bonsai for more than a month of re-bonsai, and stored in the distribution company for a period of time, plus yew like rich and loose soil. It is best to change the basin as soon as possible, when changing the pot to calculate the inner diameter of the flowerpot, the inner diameter of the new pot should be at least five centimeters larger. Before the new buds germinate in February and March every year, pour out the tree and the pot soil together when the basin soil is not dry or wet. Try not to break the original soil ball, if you find that there are too many roots after survival, you can properly cut off the bad roots, put the tree in a new basin, fill it with nutritious soil and press it gently, and only close the soil and roots in the basin can you improve the survival rate. otherwise, the plant is not easy to survive or does not grow vigorously. However, the soil should not be pressed too firmly, if the air cannot be breathed from the roots, the roots will rot and the plants will die. Water thoroughly immediately after planting. And leave the basin in the shade for a few days. After watering, the basin soil can no longer be turned over and pressed, otherwise the basin soil is easy to consolidate, or the soil is too solid and breathable and easy to cause rotten roots.

Fourth, the fertilization method of yew bonsai: nitrogen, phosphorus and potassium fertilizer, nitrogen fertilizer can promote the growth of flowers and plants; phosphorus fertilizer can promote the formation of flowers and fruits; potassium fertilizer can promote stem and root growth.

Because the bonsai is in a limited bowl space. Limited cultivation soil, organic matter is broken down into inorganic salts by bacteria and absorbed by roots. With the consumption of Taxus growth, the nutrients in the basin soil are gradually lacking, resulting in insufficient demand for growth. Although the prepared nutritious soil is used in the bonsai, do not apply fertilizer within three months after buying it back. As long as every seven to ten days, pour about 1000 times of potassium dihydrogen phosphate solution or foliar spray in the evening. Control the amount of water and don't water too much. Only when the leaf color becomes pale, the plant is thin, the leaf is yellowish white, the leaf tip appears "dry burning edge", and the leaf senescence occurs prematurely, apply 1000 times liquid urea and potassium sulfate 800x instant high quality compound fertilizer solution to remove sediment and then irrigate the basin soil. once every other month or so, it is best to use fully mature light bean cake fertilizer water (about 10% 15%) to avoid the tree trunk and apply along the basin wall as far as possible. Apply once a month. Pour clean water again the next day after fertilization, in case the fertilizer is too thick and dilute, the above two fertilizers can be used alternately, or you can dig two small pits in each basin and put five or six grains of urea and seven or eight grains of high-quality compound fertilizer in it. Then cover the soil and water it to dissolve the fertilizer. Taxus bonsai is not allowed to apply raw fertilizer and thick fertilizer. Topdressing should be based on nitrogen and phosphorus fertilizer, not too thick.

Fifth, the watering method of bonsai: the principle is "do not dry, do not water, water thoroughly"

Water is an important part of flowers and trees, all life activities of flowers and trees should be carried out with the participation of water, whether photosynthesis or transpiration, can not be separated from water, water can maintain the swelling and pressure of cells and make branches and leaves straight. But beyond the limit, the plant growth is thin and weak, such as long-term basin soil too much water, it will cause leaves yellowing, deciduous leaves, rotten roots, and even death.

1. Look at the slightly lighter color on the surface of the basin soil, the leaves slightly curl, press the basin soil with your fingers and feel a little soft, and when the sound from tapping the middle and upper part of the basin body with finger joints is relatively dull, the basin soil does not need to be watered, as long as the leaf surface is sprayed to replenish the moisture of the leaves. When the surface of the soil is white, press with your fingers and feel that the soil is hard, and there is a circle of cracks between the basin and the soil, when tapping the middle and upper part of the basin with finger joints gives a clear sound of "bang bang", when the young leaves of the new shoots are withered, the basin soil should be watered. The cracks between the soil and the basin should be compacted with hard objects before watering, and then poured with a large spoon. When pouring water, the spoon should be close to the edge of the basin, and the spoon should be poured in all at once, so that the basin soil can absorb enough water. If you pour a small amount of water into the basin for a while, you can see that the water flows out quickly from the bottom of the basin, indicating that the soil and the basin are not completely compacted. The gap between the basin wall and the soil is pressed and then poured by the application object. When the basin soil structure is normal, it is better for water to seep out slowly from the bottom of the basin for about 40 seconds to one minute after watering. The water temperature must be close to or consistent with the air temperature at that time. When using tap water, you should first put the water in the sun for about three hours before watering, because the light helps to decompose the oxides in the tap water and increase the water temperature. You can also put the water in the big basin for half a day or one night and then water it. If there are many bonsai, you'd better put the water in the big tank to make the water temperature as close as possible to the air temperature and soil temperature. Especially in the hot season, in addition to watering the basin soil, it is also necessary to spray water spray on the leaves to keep them moist for growth. When the basin soil can be kept a little dry and not too wet, each basin must be checked in the light of the actual situation, and be careful not to water too much.

2. The evergreen leaves of Taxus chinensis var. mairei are suitable to be placed indoors. However, the yew bonsai is not easy to be placed in the air outlet of the air conditioner, otherwise it will increase the water evaporation of the yew leaves, easily cause the branches and leaves of the yew to dehydrate quickly, and cause the leaves to curl and dry up. If you turn on the air conditioner in the air conditioner room every day, you should spray the foliar surface every day to maintain the foliar humidity and put a basin of water indoors. In the room with heating in winter in the north, the heat sink should be dispersed far away, and a basin of water should be put on the radiator to increase the indoor air humidity. Summer and autumn temperature more than 30 degrees Celsius should strengthen shading and cooling work, can be moved to the north ventilated room. Spray water to cool down when necessary to create a cool, moist environment to facilitate the growth of the yew. And avoid the western sun shining directly on the room on the yew bonsai. The watering amount of bonsai should be controlled in winter to avoid long-term over-wetness of potted soil, because the plant growth is not exuberant in winter, the volatile water of leaves is less, if the potted soil is too wet for a long time, the surface of potted soil will be hardened and impervious, and it is easy to cause rotten roots. The yew must pay attention to the indoor ventilation when raising the yew indoors.

3. The soil for yew planting should be loose, humus-rich, fertile and slightly acidic (between PH=5.5~7). Tea water can not be poured into the yew bonsai. If you often pour the rest of the tea water, because the tea water contains theophylline and other alkaloids. If the pH of the soil is changed for a while, it will also destroy the organic matter nutrients in the soil. It can inhibit the growth of Taxus and cause excessive soil moisture, hinder the ventilation of basin soil, and cause root rot and stem rot. When there are conditions for a week or so, moving the yew bonsai to the balcony in the evening to receive dew and exposing it to the sun for about one or two hours in the morning (before 10:00 in the morning) is beneficial to the growth of the yew and improve its disease resistance. In summer and autumn, it is necessary to prevent the western sun from shining directly on the yew through the window, so as to prevent the high temperature burning leaves from affecting the ornamental value.

VI. Pay attention to the main points

1. The yew should pay attention to the adjustment of light because the tree is small, so it needs light, but it can not be placed in the strong light for too long. Generally, it can be basked in about two hours before ten o'clock in the morning or after five o'clock every day in summer and autumn. Usually accept more scattered sunlight. Otherwise, the leaf tip will be scorched yellow due to strong light burns, and the indoor ventilation will be maintained, so that the indoor air will not be withered, sagging and other bad growth phenomena.

2. If the young leaves of the new bonsai appear dark yellow and dull, the withering phenomenon of the top of the new shoot is generally caused by overwatering too much soil and impermeable so that part of the roots rot and absorb water. When the ability to absorb fertilizer is weakened, the amount of water should be controlled if the symptoms are mild, and the basin surface soil should be gently loosened with hard and blunt objects to make the basin soil breathable, move to a place that can accept dew every night, and move to a shady place at eight or nine o'clock in the morning, which is conducive to the healthy growth of the root system. If the leaves are yellowed and curled in a short period of time, it means that the root rot is serious, because immediately turn the basin to check the root rot condition, (the normal fibrous root shows a full white shape), if more than half, generally save not alive.

3. Yellow leaves occur in the old leaves from the bottom up, but the new leaves generally grow normally, which is generally caused by the lack of water in the roots and the lack of water in the roots. Sometimes the top leaves dry and curl, touch the dry leaves fall, but the old leaves grow normally, generally caused by the lack of water in the roots, should be watered thoroughly at one time. When watering, the cracks on the edge of the basin must be compacted with objects to prevent the water from quickly leaking from the cracks. To create the illusion of being thoroughly watered, the roots will die due to lack of water over a long time. Move outdoors at night to accept more rain and dew, and receive two hours of sunshine in the morning and evening to restore the growth of the yew.

4. Taxus is suitable for weakly acidic soil. If it is irrigated with alkaline water for a long time, it will cause leaves to change from green to yellow, or even leaves to fall off, due to the addition of acidic nutrients or spraying leaves or watering basin soil with 2/1000 ferrous sulfate solution, once every ten days, three times in a row. It can make the leaves turn green due to alkali yellow.

5. In March and April every year, the yew will sprout a large number of buds and consume a lot of nutrients. At this time, the buds growing toward the inside can be removed to prevent the leaves from yellowing or falling off because the branches are too dense and unventilated. For cross branches, inward branches grow and cut sparsely, which can improve ventilation. Transparent light, and can save the excessive consumption of water and nutrients, it is best not to spray liquid fertilizer on the leaf surface at the beginning of bud germination, or to pour thick fertilizer on the root.

6. if the normal amount of fertilizer is applied with urea alone, the concentration of nitrogen fertilizer is generally 1/1000, and if potassium dihydrogen phosphate is used alone, the concentration of phosphate fertilizer is 1/1000 to 2/1000, with an interval of seven to ten days.

Disease and pest control of Taxus mairei

Taxus stem rot is one of the most serious diseases in the growing period of Taxus cutting seedlings. After 2 months of cutting, stem rot occurred successively at the stem base of the cuttings (at the junction of underground and aboveground cuttings), which was caused by individual plants and then spread into a whole cluster, resulting in green loss, death and shedding of panicle leaves. Because the disease mainly occurs in the high temperature season in summer and autumn, the cutting seedlings are damaged by high soil temperature, which provides conditions for the invasion of pathogens. The occurrence and epidemic of the disease mainly depend on the air temperature in July and August. If the disease occurs early, the heat resistance of seedlings is weak, the disease is serious.

Prevention and cure measures

First, to reduce the soil surface temperature of the nursery bed during summer and autumn to prevent the base of the seedling stem from being burned, so as not to cause the wound to lead to the invasion of bacteria.

Second, apply more fertilizer to promote the growth of cuttings and enhance their disease resistance.

Third, using pentachloronitrobenzene powder diazone powder mixed with water to irrigate with 5g/ kg concentration, the best control effect was 89%, or carbendazim methyl thiophanate wettable powder was watered with mixed water with 4g/ kg concentration, and the control effect reached 83%.

4. the occurrence of stem rot of cutting seedlings can be basically controlled by alternating application of the above two methods to control the disease in a large area.