Yew, also known as yew, is a plant of the genus Taxus. It is a first-level rare and endangered protected plant in my country. It is a world-recognized natural rare anti-cancer plant and is a veritable "plant". Giant Panda". Yew is an evergreen tree, usually up to 30 meters tall and with a diameter at breast height of 65-100 centimeters. Yew is recognized as an endangered and rare plant in the world, but it has extremely high functions and values. So what are the functions of yew? What is the current price of yew on the market? Next, let us learn about the functions and prices of yew.
Cultivation methods of yew
The main method of cultivating yew is to pay attention to the following relevant content and matters. As long as you follow the relevant knowledge requirements, you will be able to cultivate beautiful and lush yew. yew.
1. Light: Yew prefers a cool growth environment, so during the breeding process, it must be properly shaded and should not be placed in a place with direct sunlight. This will cause the water in the yew to evaporate quickly, resulting in The branches and leaves are dehydrated and the leaves dry up. In midsummer, yew trees can be placed in the living room, balcony, corners, etc. during the day, and then placed on the windowsill for ventilation in the evening. At the same time, lack of light will also affect the growth of yew, so in climates where the sun is not strong, it should be properly exposed to sunlight.
2. Watering: Normal yew leaves are tall and bright. If you find that the leaves appear tired, you should water them. If the leaves droop, it indicates a serious lack of water. In addition, you can also judge whether watering is needed by tapping the pot and listening to the sound. If the sound is hollow when tapping the pot, it means that the soil is dry and it is time to water. Insert your fingers 2-3 cm into the soil. If the soil feels dry, it needs watering. Generally, yew placed outdoors should be watered once every 15-20 days, and indoors should be watered once every 20-25 days. It is best to keep the soil moisture content at about 40%.
In different periods, plants need different amounts of water. During the growth period (March to November), they need more water, and during the dormant period (December to February), they need less water. Than less. In spring and autumn, it is generally watered once every 5 to 7 days, in summer it is watered once every 3-5 days, and in winter it is watered once every 7 to 10 days, that is, it is watered enough at one time. However, it should be noted that yew should not be watered with tea water. Watering too much and too frequently will cause root rot of yew.
3. Soil: Loose, humus-rich, water-retaining, fertilizer-retaining and breathable soil should be used for yew cultivation. A mixed matrix of peat soil, perlite, etc. and loam can be used. Since clay is not breathable and sandy soil has poor fertilizer and water retention properties, it is not suitable to use it. In addition, yew cultivation should fertilize the soil in time. It is better to apply 0.2 catties of organic fertilizer and 0.02 catties of compound fertilizer per plant at a time. Farmyard manure and cake fertilizer (such as cottonseed cake, peanut cake, sesame cake) can also be added. When applying fertilizer, try to spread it along the pot wall and not close to the roots of the yew. Generally, newly purchased yew bonsais have their own nutritious soil and do not need to be fertilized within the first 3 months. Fertilizer can be applied after 2 or 3 months.
4. Pest and disease control: Under normal circumstances, there are very few pests in yew farming. If the yew is found to be withered or damaged by diseases and insect pests, you can water or spray it with thiophanate methyl and potassium dihydrogen phosphate. Relatively speaking, yew will suffer from root rot, stem rot and root rot during the rainy season, especially for saplings. At this time, dika pine can be sprayed for maintenance. During high temperature and drought seasons, yew is prone to leaf blight and red blight, which can be controlled by spraying Bordeaux mixture.
5. Precautions for the growth environment: Yew does not have many requirements for the growth environment. The main thing is that it cannot be exposed to direct sunlight, cannot face the air conditioner in summer, cannot be close to the heater in winter, and cannot be careless. Throwing cigarette butts, tea leaves and other debris into the breeding pot will have a negative impact on the growth of yew. The flower pot for cultivating yew should be slightly larger, and a few more holes can be drilled in the lower part of the pot to enhance the water permeability and air permeability of the flower pot.
6. Bonsai trimming: When the lower branches of the yew bonsai grow too densely and dry and yellow leaves fall off, part of the lower branches that are too dense can be trimmed into umbrella or tower shapes. shaped, round and other shapes. When repotting the yew, if the root system cannot keep up with the nutrient supply to the roots and branches and leaves, and the leaves become curled and dry, you can reduce the consumption of nutrients by the branches and leaves through pruning and quickly restore the root growth.
7. Transplantation and repotting of yew: After about one year of cultivating a new yew, the saplings will gradually grow and their root system will develop accordingly. Therefore, transplantation and repotting are required.
When changing pots, you can smash the old pot, but do not damage the original soil ball. After moving it into the new pot, water it in time to fix the roots so that the yew root system and the soil can be closely combined.
The role of yew in landscaping
Yew is an extremely excellent potted foliage plant with multiple ornamental values ??and is deeply loved by people. Yew has broad development prospects in modern landscaping and indoor bonsai. Modern people often use rare yew trees to make high-end bonsai. Yew bonsai is generally processed through dwarfing technology. The shape is simple and elegant. The branches and leaves are compact but not dense, stretched but not loose, and very beautiful.
The role of yew in purifying the air
After testing, yew has the effect of purifying indoor air very well and absorbing various indoor poisonous gases, such as formaldehyde and other harmful gases produced during the decoration of new houses. , can be well absorbed by yew, thereby reducing the indoor poisonous gas content. Yew can absorb carbon dioxide and release oxygen. It is a very good natural oxygen bar and is very suitable for indoor breeding. It can also prevent respiratory diseases and keep the air clean and safe.
The role of yew as furniture material
Yew is not only an excellent ornamental plant, but also a high-quality material for making furniture. High-end yew furniture made after careful processing, Very artistic, elegant and fresh, full of charm. Yew is an excellent material for sculptures. Generally, yew root carvings have extremely high artistic value and are very suitable as collections.
The role of yew in edible beauty treatment
The leaves of yew can be eaten raw and have anti-inflammatory and detoxifying effects; the arils of yew can be eaten, stimulating appetite and having an appetizing effect; In addition, yew seeds can also be extracted into oil; some people extract yew essence and combine it with essential oils to make various cosmetics. After use, it can beautify the skin, moisturize, regulate blood circulation, care for delicate skin, and make you radiant.
The efficacy of yew in medicinal cancer treatment
The medicinal value of yew is high, mainly reflected in its extract paclitaxel, which can effectively treat metastatic ovarian cancer and breast cancer It also has significant effects on lung cancer, esophageal cancer, nephritis and parvovirus inflammation. The roots, stems and leaves of yew can be used as medicine, which can treat problems such as difficulty urinating and eliminate swelling and pain. It can also treat diseases such as diabetes, irregular menstruation in women, and increased blood volume. It has certain curative effects. Yew can also be used for postpartum conditioning and has a certain therapeutic effect on female diseases.
Yew price
Yew is an ancient relic tree species left behind by the Quaternary glaciers. Due to its slow growth and extremely rare natural distribution, it has not yet formed a large tree worldwide. Large-scale yew raw material forest base, so the price of yew is generally relatively high. The price of yew seedlings ranges from a dozen yuan to tens of thousands of yuan, and different years and sizes affect the price of yew.
Usually, the lowest price of yew bonsai is 600 yuan. For example, a five-year-old yew pot sells for about 1,500 yuan in the market; one cubic meter of yew wood sold on the market costs 50 yuan. The price of yew extract is even more expensive. The price of high-purity paclitaxel is generally at least about 2 million yuan per kilogram, which is comparable to gold.