How to raise the seedlings of Daphne odora L. in Phnom Penh

(1) choose a good soil. Because Daphne is not tolerant to fertilizer, it is of great significance to increase the content of organic matter in soil. The slightly acidic rotten leaf soil with good permeability and high content of organic matter was mixed evenly with appropriate amount of sand (about 8:1) and used after being exposed to the sun for 2 or 3 days.

(2) watering and fertilizing. When planting, we must do a good job in the drainage layer, strictly prevent stagnant water, watering should not be too frequent, otherwise it is very easy to cause root rot. Adopt the watering principle of dry and wet, when the basin soil is slightly dry and then watered through, the amount of water and times can be reduced appropriately in autumn and winter, and when the basin soil is slightly white, the amount of fertilizer should not be too much, the most avoid thick fertilizer. In the peak growth period in spring, compound fertilizer can be applied for 2 or 3 times in autumn bud period, and the point application method can be adopted, that is, 4 or 5 small holes are dug at the edge of the basin, then a small amount of compound fertilizer is applied and then covered with soil, and the second and third fertilizer application points are staggered with the previous one. Fertilizer depends on the usually watered and moist soil to slowly dissolve and gradually be absorbed by the roots to avoid "burning roots".

(3) controlling flowering. For Daphne odora which is still in the small seedling stage, flowering is extremely disadvantageous to its growth and is easy to become rigid seedlings, so it is necessary to peel off the buds in time to reduce unnecessary nutrient consumption. The specific approach is: at the end of autumn, when the flower buds at the top of the branches are enlarged and the buds are loose, exposing the buds the size of grains, peel them off carefully with tweezers, and keep the thinner buds on the periphery of the buds.

(4) pruning the rotating basin. As the buds are removed, several leaf buds in the bud usually draw shoots and spread leaves early, so in order to prevent the tender shoots from freezing, move them indoors, or put them on the balcony to the south for cultivation. When the new shoots grow to about 2 cm, choose 4 leaves that are strong and evenly distributed, and the rest are cut off from the base. In this period, due to the "heterogeneity of buds", some thin weak buds grow in the axils of the previous year's branches, and these weak buds are weak, so they are generally cut off, so that nutrients can be effectively concentrated for the growth of branches. at the same time, it is conducive to the formation of good plant shape. During the prosperous period, if you put it on the balcony with unilateral light, you must rotate frequently to prevent it from growing to one side.

(5) spend summer and winter. Summer sun leaves, twigs are extremely prone to "burn phenomenon", the growth point is easy to scorch, causing abnormal fallen leaves, or even die, so to strictly prevent sun exposure, should be placed in a cool place or shade, often spray water to the leaves. In winter, you can put it on the south balcony and move back indoors in case of frost, snow or dry wind. the above is an introduction to how to raise Daphne seedlings in Phnom Penh.

Phnom Penh Ruixiang Daphne odora "Aureomarginata" Phnom Penh Daphne Picture: how to raise Phnom Penh Daphne / Phnom Penh Daphne how to breed Phnom Penh Daphne Business Card Phnom Penh Daphne Daphne odora "Aureomarginata" Phnom Penh Daphne introduction Phnom Penh Daphne is a traditional famous flower in China and also a famous flower in the world. In the history of modern horticulture, it is regarded as the three treasures of horticulture together with Changchun monk Gentleman and Japanese five-needle theory. Phnom Penh Ruixiang is famous for its "color, fragrance, appearance and rhyme", leaving behind the singing of "peony flowers are the best in Phnom Penh". The morphological characteristics of Phnom Penh Daphne odora is a variety of Daphne odora, which belongs to the evergreen shrub of Daphne odora. Fleshy roots. Leaves densely whorled oval, about 5--6cm long, wide 2--3cm, smooth and thick, leathery, both sides glabrous, dark green surface, light green back, golden margin, short petiole A terminal inflorescence, perianth tube-shaped, the upper four-lobed diameter is about 1.5cm, each flower is composed of dozens of florets, blooming from outside to inside, flowering for more than two months, during the Spring Festival, the flowers are purple and red in color and rich in fragrance. The ecological habits of Phnom Penh Ruixiang potted Phnom Penh Daphne, the pot soil should be fertile and loose, rich in humus and acidic rotten leaf soil, mixed with appropriate amount of river sand and mature cake fertilizer. Phnom Penh Ruixiang root is fleshy, usually maintenance and management should pay special attention to control watering, such as too much watering, basin soil is too wet for a long time, easy to cause rotten roots. After the rain, the stagnant water in the basin must be poured out in time. Although Phnom Penh Daphne likes semi-shade, it should be placed in a sunny environment in winter and spring. During the growth period, such as sufficient light and appropriate fertilizer effect, it can make Ye Dai, flowers and flowers strong. It should be placed in a well-ventilated shady place in summer, and water should be sprayed to cool down when it is hot. Phnom Penh Daphne prefers fertilizer and should be irrigated with thin liquid fertilizer every 10 days or so in the growing season. It is appropriate to apply sparse pancake fertilizer and water before and after flowering. After Frosts Descent moved into the sunny part of the room, the room temperature was kept at about 5 ℃, and the watering was controlled; the water content of the basin soil was controlled at about 45% before it could pass the winter safely. In addition, Phnom Penh Daphne has numerous branches, strong germination, resistance to pruning, and must be pruned after flowering. The distribution area of Phnom Penh Daphne is native to the Yangtze River Basin and grows in the shady and humid zone of low mountains and hills. According to the Records of the Qing Dynasty, an old monk in Lushan sat on a stone bench behind the temple. He heard the strange fragrance in his dream and rose happily, so he looked for it in the surrounding fragrant grass and got a thick leaf fragrant flower, which was transplanted into a pot in front of the Buddha and was called "Sleeping incense". Soon the Spring Festival was coming, and the fragrance of the flowers was not reduced, and there were many benefits for those who respected the Buddha. The salty word was given by the old Buddha, which was a sign of auspiciousness for a year, so it was renamed Ruixiang. Since then, the number of seed gatherers has increased day by day. After a long period of artificial cultivation and domestication, Phnom Penh incense with gilt edge was selected from the parent varieties of Daphne odorifera. "Phnom Penh Ruixiang" is produced in Dayu County, Ganzhou, Jiangxi Province. In March 1996, Dayu County was named as the only "hometown of Ruixiang in China" by the China Special products Economic Committee and other relevant departments. Cultivation techniques of Phnom Penh Daphne with its pure flowers and rich aroma, Phnom Penh Daphne is the first choice for potted flowers. The propagation method of Phnom Penh Daphne mainly adopts old wood and tender wood cutting. this method has the characteristics of high survival rate, easy to learn, labor-saving and labor-saving. 1. The old branch cuttings are collected before the spring plant sprout. generally from late March to early April, choose one-year sturdy branches with strong growth, good development, no diseases and insect pests and full buds. The strong branches of the same year were used in the softwood cuttings from June to July. 2. Cuttings cutting and treatment Phnom Penh Daphne is generally cut according to the upper, middle and lower parts of the seed strips, the middle and upper branches are the best, and the tips are the worst. Old wood cuttings require a roughness of more than 1 cm and a cutting length of 15 cm; tender wood cuttings generally have a cutting length of 10-12 cm, retaining only 2-3 leaves at the top of the branch, and all the rest are cut off. If the leaves left are too large, in order to reduce transpiration, the leaves left should be cut off. After cutting the cuttings, soak them in 0.5% Murray 5% sugar solution for 10-12 days, take them out and cut them. 3. The cutting technology chooses the cutting substrate with good permeability and pH value of about 5, and generally uses fine sand or vermiculite to retain water. Before cutting, cut the base of the cuttings from the middle with a sharp knife, with a length of 1.5-2 cm, and then clip a small pebble in the middle to prevent it from closing, increasing the contact area between the base of the cuttings and the substrate, which is conducive to the rooting of the cuttings. Insert 1 beat 3-1 stick 2 of the cuttings into the matrix to compact the matrix. 4. Manage after cuttage to keep the soil moist after cutting, supply the water needed for cuttings to take root in time, and keep the temperature at 20-25 ℃. At the beginning of the seedling stage, often irrigate with small water and clear water, in order to permeate the matrix, avoid turbid water and overflowing irrigation, so as to prevent the young leaves from getting muddy and burning. At the same time, pay attention to shade to avoid sun exposure. The root system of Phnom Penh Daphne has fragrance, so it is necessary to avoid the encroachment of ants and earthworms. one. The cuttings can take root in 30-35 days. Disease control of Phnom Penh Daphne Stem Rot Prevention and Control Phnom Penh Daphne is a precious flower and tree loved by the masses, but it is difficult to keep. The main reason is stem rot. Symptoms: the disease is not easy to be detected at the initial stage. The first manifestation of the disease is the rhizome. The phloem of the disease blackened and rotted, and gradually developed to the root. However, the xylem was normal, the leaves were green and did not fall until death, and no disease was found on the surface. 2. The characteristics of the disease: the onset period of the disease is from June to October, and the peak is from July to September. It is a period of high temperature and strong light. It was observed that the incidence rate was 37.5% when placed in sunny places throughout the day, while only 5% occurred when the sun was hidden from 9: 00:00 to 4: 00:00 p.m. The diseased plants are mainly 1-5-year-old plants with rapid growth in spring and numerous leaves, and have strong infectivity. In terms of cultivated soil, the incidence of easy drying of basin soil was significantly higher than that of good water retention. The incidence of decayed leaf soil with 80% and 20% river sand was significantly lower than that of rotten leaf soil with half and half river sand content. The incidence of fire dung soil with 100% soil is lower than that with high sand content. Prevention and control methods: according to the incidence characteristics of Phnom Penh Daphne and three years of practice, the prevention and control of stem rot can start from five aspects: 1. The selection of culture soil: choose the soil rich in humus with good drainage and water retention. This kind of soil can dig the surface rotten leaf soil directly from the mountain forest region and mix it with a small amount of river sand and rotten cake fertilizer, or choose vegetable garden soil to add part of the rotten leaf soil and a small amount of Phnom Penh Daphne and rotten cake fertilizer cultivated in the river sand shed. 2. The choice of environment for placing potted flowers: Phnom Penh Daphne is a kind of plant that likes cool and ventilated environment. From June to October, potted flowers should be placed in a cool place from 9 a.m. to 4 p.m. Or take the method of setting up a shed to solve the problem. 3. Pruning in time: the plants with exuberant growth and numerous branches and leaves in spring are treated with heart-picking and leaf-picking, and too many new sprouting branches are removed to control the evaporation of water too quickly. 4. Water management: the soil must be kept moist in summer and autumn, rather wet than dry, in order to ensure the water supply of the plant. 5. Treatment of diseased plants: once the disease occurs, the diseased plants should be disposed of immediately with pot soil, and flowerpots should be washed and disinfected. Other uninfected strains were washed and disinfected with 500-fold carbendazim to prevent the spread of the disease. In short, it is necessary to carry out comprehensive prevention and control of stem rot. On the basis of selecting the culture soil and doing a good job of shading in summer and autumn, 1-5-year-old plants can generally control the occurrence of stem rot. [5] symptoms of prevention and treatment of leaf spot: at the beginning of the disease, small chlorotic dots appeared on the leaf surface, but in the later stage, the disease spot was enlarged into a large near-round spot, the size of the spot was uncertain and there was black mildew. From April to September, the disease occurred first in the lower leaves of the plant, gradually to the middle and upper leaves, and gradually developed to the middle leaves. When the leaves were serious, the growth became weak until the whole plant died. Prevention and control methods: reasonable watering, waterlogging prevention, strengthening ventilation, more application of mature liquid fertilizer rich in phosphorus and potassium, timely cleaning of fallen leaves of diseased plants and concentrated burning, can also be prevented by spraying 1% Bordeaux solution in early spring. During the onset period, mancozeb, carbendazim and thiophanate methyl were sprayed on the leaves in turn every 7-10 days for 3-4 cycles. The prevention and treatment symptoms of Fusarium wilt: at the beginning of the disease, the old leaves turn yellow, turn brown and dry, and gradually expand to the upper old leaves. When the temperature rises in spring, the bacteria invade from the root wound, and the disease is particularly serious in the high-temperature and rainy season, generally from morbidity to death. The course of the disease is generally 15-45 days, which is extremely harmful. Control methods: reasonable cultivation, timely cleaning and destruction of diseased leaves and diseased branches, and disinfecting the soil with formalin or pentachloronitrobenzene before potting. In the early stage of the disease, the roots were irrigated with carbendazim or benzoate 800-fold solution once a week for 5-6 times, and the effect was obvious. Phnom Penh Daphne's dietotherapy or medicinal value the medical information and health dietotherapy information of Phnom Penh Ruixiang are for reference only and can not be used as the basis for diagnosis and medical treatment. Any health problems should consult professional health care personnel, the treatment of any disease, please follow the doctor's advice. The ultimate task of protecting flowers: to love yourself, proceed from reality and follow the doctor's advice. For disease, do not be careless, do not postpone, do not give up hope, face it bravely, warm the silent world with love, and protect the inner flower field with your heart. Medicinal value Phnom Penh Daphne contains daphnetin, its roots, stems, leaves, flowers can be used as medicine, sweet and non-toxic, heat-clearing and detoxification. The effects of anti-inflammation and pain, promoting blood circulation and removing blood stasis and dispersing knots have been included in the "Dictionary of traditional Chinese Medicine". Dayu County, the hometown of Ruixiang in China, has a long history of cultivation and is the main production base of Daphne odora in Phnom Penh. The Phnom Penh Daphne produced in this county is of good quality and large in quantity. It supplies Phnom Penh Daphne seedlings and hundreds of thousands of pots of flowers every year, and is also exported to Southeast Asia. The economic and social benefits are very good. Many farmers have made a fortune by planting Phnom Penh incense to get rid of poverty and become rich, and many laid-off workers have found a way to get back to work by planting flowers, and their economic income is much higher than when they were on duty. As the development of the flower industry has also led to the prosperity of related industries, thus promoting the overall economic development of Dayu County. According to the collection of the Dictionary of traditional Chinese Medicine, roots, stems, leaves and flowers can be used as medicine. It is sweet and non-toxic and has the functions of clearing heat and relieving car, reducing inflammation and swelling, promoting blood circulation and removing blood stasis. It is commonly used in folk to mash fresh leaves to treat sore throat, toothache, blood furuncle and hot furuncle, which is used in Hua Yan restaurant to smear nameless swelling poison and various skin diseases. The main medicinal ingredient of Phnom Penh Daphne is daphnetin. Its flowers, leaves and roots can be used as medicine. Sweet, cold and non-toxic. It has the effect of anti-inflammation and detoxification, promoting blood circulation and diuresis, relieving swelling and pain, dispersing blood and activating blood stasis. It can treat nameless swelling, sores, mastitis, ulceration, toothache, stomachache and so on. The methods are as follows: first, pick several pieces of Daphne leaves, smash, apply to the affected area, can treat blood therapy, ulceration, nameless swelling poison, mastitis and so on. If you do this several times, it will work. Phnom Penh Daphne is a deciduous evergreen shrub. In spring, when the new leaves grow, the old ones fall off naturally. Wash the naturally fallen leaves, dry them in the sun and soak them in spirits. Set aside. If there is nameless swelling and pain, poisonous mosquito bites, boils, etc., rub on the affected area several times a day. If you have a toothache, stick a cotton ball with medicinal wine and bite with painful teeth to relieve the pain. Third, Phnom Penh Daphne petals are naturally backward, picked up and dried, soaked in sesame oil or tea oil, except for toothache, the use of Phnom Penh Daphne ornamental value Phnom Penh Daphne blossoms in the Spring Festival, flowering for 60 days, its posture is whirling and natural, the leaf is neat and green, the leaf edge is inlaid with gold, yellow and jade, and the jade leaf is luxuriant all the year round. The blooming season coincides with the celebration of the Spring Festival, with the fragrance of flowers accompanied by the fragrance of wine. It blossoms with branches and clusters, blooming like flowers and full-bodied fragrance, adding a sign of foreign auspiciousness to the Spring Festival. Phnom Penh Daphne is not only a traditional flower in China, but also a famous flower in the world. In the history of modern horticulture, it is regarded as the three treasures of horticulture along with Changchun monk Gentleman and Japanese five-needle theory wave. First, it is graceful, vigorous branches, natural, whirling plump, graceful, charm, beautiful and unrestrained, full of vitality. Second, gold jade leaves, leaf edge inlaid with Phnom Penh, neat and bright, green thick green, luxuriant all the year round, the four seasons can be enjoyed. Third, the flowers bloom at the right time, the full bloom is at the beginning of the Spring Festival, it is auspicious to celebrate the New year with people, welcome guests to add fun, the fragrance of flowers with the smell of wine, is full of joy. Fourth, the florescence is long, from the formation of buds from green to purple. From the outside to the inside of a tube of open, prosperous, flowering more than two months. Fifth, the full-bodied fragrance of flowers, fragrance overflowing, full of fragrance, Qin into the heart and spleen, there is the essence of flowers, the spirit of the group of fragrance. Indeed, it is a kind of precious flower with excellent appearance, color, fragrance and rhyme, which is favored by the majority of flower lovers. More and more people buy two fragrances from Phnom Penh for the Spring Festival, which has become a new fashion. The cultural background of Phnom Penh there is another legend about the origin of the flower name of "Phnom Penh Ruixiang": in the early years, a monk wandered to Dayu and rested on a stone because he felt tired. He smelled bursts of flowers in his sleep, and the fragrance was very strong. After waking up, the flower fragrance really existed, so he went to look for it, and sure enough, he found it, and gave the flower a name "Sleeping incense". Later, some people thought that the word "sleep" sounded indecent, so they changed the word "sleep" to "Rui". The flower language of Phnom Penh Ruixiang, Phnom Penh Ruixiang is famous for its "color, fragrance, appearance and rhyme". It opens before and after the Spring Festival, full of branches, clusters, flowers and rich fragrance, adding a sign of foreign auspiciousness to the Spring Festival. so it has become an auspicious and auspicious thing in people's homes during the Spring Festival. Therefore, the flower words of Phnom Penh Ruixiang are: auspicious, auspicious. Phnom Penh Ruixiang Picture Phnom Penh Ruixiang how to raise Phnom Penh Ruixiang, Phnom Penh Daphne Culture methods and points for attention

Phnom Penh Daphne is a variety of Daphne odora. It blossoms before the Spring Festival, adding a lot of color to the Spring Festival. Phnom Penh is not only a plant for people to watch, its flowers, leaves, bark and roots can be used as medicine, so Phnom Penh Daphne has high medicinal value. Today, let's take a look at how to raise Phnom Penh Daphne, the breeding methods and precautions of Phnom Penh Daphne.

What is Phnom Penh Ruixiang?

Phnom Penh Daphne belongs to Daphne, Daphne, evergreen shrub. Fleshy roots. Leaves densely whorled oval, about 5--6cm, wide 2--3cm, smooth and thick, leathery, both sides glabrous, dark green surface, leaf back light green, leaf margin golden yellow, petiole thick and short; terminal inflorescence, perianth tube-shaped, upper four-lobed diameter about 1.5cm, each flower is composed of dozens of florets, blooming from outside to inside, flowering for more than two months, during the Spring Festival, the flower color is purple and bright, fragrance is rich.

Second, Phnom Penh Daphne how to raise, Phnom Penh Daphne cultivation methods and points for attention 1, soil: potted Phnom Penh Daphne, pot soil should be fertile and loose, rich in humus with acidic rotten leaf soil, mixed with appropriate amount of river sand and mature cake fertilizer.

2, watering: Phnom Penh Ruixiang root is fleshy, usually maintenance and management should pay special attention to control watering, such as too much watering, basin soil is too wet for a long time, easy to cause rotten roots. After the rain, the stagnant water in the basin must be poured out in time.

3. Sunshine: although Phnom Penh Daphne likes semi-shade, it should be placed in a sunny environment in winter and spring. During the growth period, such as sufficient light and suitable fertilizer effect, it can make Ye Dai and flowers strong, and it should be placed in a cool place with good ventilation in summer. spray water to cool down when hot.

Temperature: after Frosts Descent, Phnom Penh Daphne moved into the sunny part of the room, the room temperature was kept at about 5 ℃, and the watering was controlled; the water content of the basin soil was controlled at about 45% before it could pass the winter.

5. Fertilization: Phnom Penh Daphne prefers fertilizer, and thin liquid fertilizer should be irrigated every 10 days or so in the growing season. It is appropriate to apply sparse pancake fertilizer and water before and after flowering.

6. Insect pests: the main pests that harm Phnom Penh Daphne are aphids and shell insects, which mostly appear in the dry and hot climate and should be controlled as soon as possible. The disease is mainly caused by virus mosaic disease, infected plant leaves appear color spots and deformities, poor flowering and growth stagnation, should be found to root out and burn with fire.

7. Pruning: Phnom Penh Daphne has numerous branches, strong germination, resistance to pruning and pruning after flowering.

8. Cutting technology: choose the cutting substrate with good permeability and pH value of about 5, and generally use fine sand or vermiculite to retain water. Before cutting, cut the base of the cuttings from the middle with a sharp knife, with a length of 1.5-2 cm, and then clip a small pebble in the middle to prevent it from closing, increasing the contact area between the base of the cuttings and the substrate, which is conducive to the rooting of the cuttings. Insert 1 beat 3-1 stick 2 of the cuttings into the matrix to compact the matrix.

9. Post-cutting management: always keep the soil moist after cutting, supply the water needed for cuttings to take root in time, and keep the temperature at 20-25 ℃. At the beginning of the seedling stage, often irrigate with small water and clear water, in order to permeate the matrix, avoid turbid water and flood irrigation, so as to prevent the young leaves from getting muddy and burning. At the same time, pay attention to shade to avoid sun exposure. The root system of Phnom Penh Daphne has fragrance, so it is necessary to avoid the encroachment of ants and earthworms. one. The cuttings can take root in 30-35 days.

A good plant can not only purify the air, but also regulate people's mood. I hope that how to raise Phnom Penh Daphne. The breeding methods and precautions of Phnom Penh Daphne can help friends who like to cultivate Phnom Penh Daphne. If you want to know more about Phnom Penh Ruixiang, please pay attention to the hot agricultural materials.