Maybe some people will encounter this situation, just bought rose, but not a few days will appear yellow leaves, or even more serious will fall off phenomenon, so why this phenomenon, what should we do? The following small series provides some solutions to solve the problem of yellow leaf abscission of rose.
The reasons of yellow leaf abscission of Rose: 1. Insufficient light: most potted roses purchased in the flower market in spring were cultivated in the greenhouse with superior conditions or direct sunlight, and placed indoors after being transported back. First, due to insufficient light, poor ventilation and sudden change of environment, the leaves turned yellow and then fell off. The correct way: roses like light, in the growing season to have sufficient sunshine, at least 6 hours of light every day, otherwise, only long leaves do not bloom, even if the flower bud, after flowering, the flowers are not beautiful and fragrant. 2. Excessive watering: due to excessive watering, the roots are breathable, the root hairs have begun to die, and the water absorption capacity is reduced, so the leaves begin to shrink. Over time, the roots will die and the leaves will turn yellow and fall off. The principle of "watering" should be adopted. The so-called "intermittent dry irrigation" is one-time watering, so that the water goes deep into the root, the soil is fully wetted, but there is no water, until the water is absorbed and evaporated, and the surface soil is dry. Correct practice: (1) in winter dormancy period, the leaves have fallen, and the water consumption is not large, as long as a certain humidity is maintained. (2) For the first time in spring, it is necessary to irrigate thoroughly, loosen the soil and keep it moist. In this way, the buds are stronger and the elongation is shorter. (3) Watering times can be increased slightly before flowering to keep soil moist and prevent flowers from withering. (4) Topdressing should be combined with watering, but try not to let fertilizer and water loss. If excessive fertilization, there is a burning phenomenon, should immediately water rescue. (5) Due to the high temperature in summer, the evaporation of water is large, especially in the dry season. Therefore, the water should be watered once a day in the morning and evening, and the water should be sufficient, especially once in the evening. Control watering in Meiyu season. (6) When the climate is too dry, spray water more appropriately to increase air humidity. 3. Improper fertilization: excessive fertilization or application of unripe organic fertilizer will cause "root burning" and wither. Right way: Rose likes fat. Potted roses should be fertilized frequently. In the growing season, light fertilizer water should be poured once every ten days. No matter what kind of fertilizer is used, remember not to overdose it to prevent the occurrence of fertilizer damage and damage to the seedlings. However, fertilizer should not be applied during dormancy in winter. 4. Pay attention to ventilation: the air is not in circulation, dry and stuffy environment, the leaves are yellow and easy to get powdery mildew. Correct practice: no matter it is courtyard cultivation or balcony cultivation, must pay attention to ventilation. Good ventilation, rose can grow strong, leaves will not yellow off, but also reduce the occurrence of diseases and insect pests. 5. Pests: rose is easy to grow in spring, black spot and powdery mildew are easy to occur in summer. Correct method: if the aphid is long, it can be diluted with cigarette butts and sprayed to kill them. Mild disease can be removed, serious can be sprayed Bordeaux solution or tobuzin, fungicide 2-3 times every ten days.
2. [fertile soil] sandy soil rich in humus and slightly acidic is suitable for potted rose, but alkaline soil is not suitable. In the spring of each year, before the sprouting of new buds, the pot soil should be replaced to facilitate its vigorous growth. Changing soil will help the flowering of the current year. Rose can be planted in flowerpots of various materials, and naturally the earthenware can be used. The choice and purchase of roses: 1, smell fragrance: today's family to buy flowers, pay attention to multi-function, more than a strong fragrance, will have more functions, to be patient to find. Buy all by smell, strong fragrance to stay, light fragrance and no fragrance elimination. In addition, the flower selection should be conducted before and after May 1 and October 1, when the temperature is suitable, the fragrance, color and charm of flowers are good, which can fully express the level. The flowers in midsummer are not enough. It should be removed. Only by removing summer flowers and preserving tree power can autumn flowers bloom well.
2. Look at the appearance:
(1) It is better to choose the one with "high satisfaction and curling angle". High, from the side, the flower is tall. Full heart, the heart of a few petals, to cover the inside of the flower, not exposed. As for the outer flap, it is required to curl the edge into a triangle.
(2) Look at the petals should be slightly thick, to have mercerized velvet texture.
(3) According to the plant shape, the varieties with high growth are suitable for cutting flowers and raising flowers at home. The plants with good clumping and slightly lower height should be selected.
(4) To see if it is sick, the rose planting is strong, potted plant is weak, and there are many patients, so we should apply medicine regularly.
(5) To see whether the original pot, potted commercial flowers, should be in the basin with grass, moss outside the pot, indicating that the original pot. If not "Fu pot" flowers do not buy, if the commodity flowers are soft plastic pots, after the purchase should be about to tear the plastic pots, the original Tuo into a tile pot cultivation.
All kinds of rose like flowers
The value of Rose: 1, greening function: rose is the main ornamental flower in spring, its flowering period is long, the ornamental value is high, the price is low, it is loved by gardens all over the world. It can be used for arranging flower bed, flower border and garden flower material in garden, making rose bonsai, cutting flower, flower basket, flower bundle, etc. The fragrance of flowers brings happiness.
2. Medicinal value: flowers can extract spices, roots, leaves, flowers can be used as medicine, has the effect of promoting blood circulation, reducing swelling, anti-inflammatory and detoxification. According to traditional Chinese medicine, rose has sweet taste and warm nature, and it can activate blood circulation, regulate menstruation, reduce swelling and detoxification. Because of the obvious effect of removing blood stasis, promoting qi and relieving pain, rose flower is often used to treat irregular menstruation, dysmenorrhea and other diseases. Moreover, the rose petals are soaked in water for tea, or added to other body-building tea. For women, it can also promote blood circulation and beauty and make people stay young for a long time.
3. Environmental protection function: it can be made into continuous flower hedge, flower screen and flower wall, which can be used in schools, residential areas and other places. It can not only purify the air and beautify the environment, but also greatly reduce the noise pollution in the surrounding areas and alleviate the greenhouse effect of the hot summer city. The adept at absorbing harmful gases can absorb hydrogen sulfide, hydrogen fluoride, benzene and other harmful substances, so rose is a good plant to protect human living environment.
China is one of the origin of Chinese rose. There are many kinds of roses. They are mainly edible roses, Fujimoto Tsukiki (CI), big flower perfume Rose (cut flower rose is the main perfume Rose) (HT Series), rose flower rose (rosette) (F/FI Series), Miniature Rose (Min Series), tree rose, strong Rose (Gr series), shrub Rose (SH), ground Rose (Gc), etc. Each flower is different in color and shape.
2. There are many propagation methods of rose, such as grafting, sowing, dividing, cutting and layering. The time and manner of operation are different.
Rose -- Rhine gold
Conclusion: the above is a small arrangement of knowledge about roses, for those who like rose flowers know which aspects to pay attention to, for those who have not planted, may as well buy pots to try it!