Cymbidium is a plant of Dracaena, an evergreen shrub, which is popular in the garden. What are the reasons for the yellowing of leaves in aquaculture? But what's a good solution? Let me tell you.
Turquoise orchid leaves yellow Turquoise orchid leaves yellow reason analysis and treatment methods: 1, too much water leads to Turquoise orchid leaves yellow (water yellow): too much water, turquoise orchid leaves yellow from below, for a long time will form rotten roots, affect the normal growth of the plant.
Solution: watering should be appropriate, not too much, must pay attention to timely drainage in rainy season.
2. Long term water shortage leads to the yellowing of the leaves of Cymbidium goeringii (dry yellow): generally, the lower leaves shrink or the leaf tips wither when the water is less.
Solution: after pouring once, the basin surface is dry. In order to improve the air temperature, spray the basin surface, increase the water content of Shangfeng basin plant material, so that the Cymbidium and pseudobulb can keep moist to a certain extent. When the whole basin is not completely dry, pour large amount of water to make it permeable.
3. Sun exposure causes turquoise blue leaves to turn yellow: sun exposure can cause scorching leaves.
Solution: when the sun is too strong in summer, move the flowerpots indoors, especially at noon, and shade them properly. Generally, the illumination is 40-50%,
4. Air drying causes Turquoise orchid leaves yellowing: the environment is dry, and the air humidity is too low, which often leads to leaf tip dryness, affecting the growth and ornamental effect.
Solution: therefore, regular water spray, improve air humidity is more conducive to growth.
5. Lack of sunlight leads to the yellowing of turquoise orchid leaves (lack of light yellow): long time exposure to too shady environment will also lead to leaf discoloration.
Solution: it's best to put the flowerpot on the southeast windowsill to make it fully accept the sunlight.
6. High temperature leads to turquoise blue leaves yellow: if the summer high temperature, the temperature is more than 32 degrees Celsius, leaves yellow and scorched, then in a dormant or semi dormant state.
Solution: water can be used to reduce the temperature and place in a cool and ventilated place. When watering in summer, we should follow the principle of "see dry and see wet, don't water if it's not dry, and water thoroughly if it's wet". After watering every time, we should wait until the surface soil is dry, but the inner soil is not dry, then we should water it for the second time.
7. Low temperature leads to yellow leaves: low temperature often leads to dry leaf tips, winter temperature is lower than 15 degrees Celsius, Cymbidium will be in a dormant or semi dormant state.
Solution: in the Yangtze River Basin and its south, after late October, Cuilan should be moved indoors to prevent early frost. In winter, it is better to control the room temperature between 10 ℃ and 20 ℃, not too low. At the same time, the potted flowers should be placed in the south window sill, so that the sun shines directly on the plant, and rotate the direction regularly to make it receive light evenly.
8. Rotten roots cause Turquoise orchid leaves yellowing: water Turquoise orchid not too much, keep the soil slightly dry and slightly wet, too much water, easy to cause Turquoise orchid rotten roots or other diseases.
Solution: use potassium permanganate solution to clean the roots, and then change the soil to replant. Do not water after replanting, and water thoroughly after three days.
Cuilan Cuilan conservation experience: 1, Cuilan like vegetable pine, fertile, good permeability matrix, can also be fully mixed with vermiculite, perlite, peat soil. This kind of matrix has good permeability, clean, sterile and tasteless.
2. The basal fertilizer should be applied before planting. Because Cymbidium is a taproot system, it is not resistant to transplanting, so it must be transplanted with a larger soil mass. Therefore, it's not suitable to overclose the culm to prevent lodging. In the seedling stage, topping and pinching are needed to promote more branches and make the plant dwarf, so as to have more flowers and beautiful plant shape. In the growing period, liquid fertilizer should be applied every 20 days, but more nitrogen fertilizer should not be applied, and more phosphorus and potassium fertilizer should be applied to make the stems strong and the flowers bright. At the same time, watering should be appropriate, not too much, rainy season must pay attention to timely drainage, otherwise it will cause rotten roots, affect the normal growth of plants.