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In fact, orchids like a moist environment, but the fleshy roots of orchids are afraid of waterlogging, so it is easy to rot roots if they are too wet or rainy, leading to many diseases. So how can you prevent orchid root rot?
Orchids (details).
In winter, orchids are in the dormant or slow growth stage, and the potting soil should be dry; Spring and early summer are important periods for the growth of orchid peanut roots, and the potting soil should be moist. However, long-term overhumidity is also easy to cause root rot, causing leaves to wither and even die. Because of excessive water, the soil is waterlogged and the air permeability is poor, resulting in insufficient oxygen, hindering the respiration of the roots, and causing the roots to turn black and rot. During the rainy season or rainstorm, the orchid must avoid its harm, because of the long rain and humidity, black spots are most likely to occur on the new leaves, and the stamens often have "rotten clothes", which affects flowering and ornamentation.
However, if the potting soil is too dry, it is easy to dry up the pseudobulb or other tissues to lose water and affect the metabolism, which will also lead to weak tissues and poor plant growth. In autumn, the potting soil should be wet, so as to facilitate the removal of leaves and flowers in the coming year. Therefore, orchid growers should know the trick of "not getting wet in winter and not dry in autumn".
The above illustrates the different water requirements of orchids at different times, so the amount of watering should be strictly controlled according to the requirements. At the same time, improper fertilization of orchids is also easy to cause root rot, such as too much fertilizer, too concentrated or liquid fertilizer into the leaf sheath, will have an adverse effect on orchid flowers. When fertilizing, the amount of fertilizer should also be increased or decreased according to the amount of watering, so that it can grow in harmony.
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There are many reasons for root rot, I have encountered it before, and I can only assume a few situations to communicate with you, first, excessive watering, unclean water, too high water content in the pot for a long time, and second, excessive fertilizer use, or fertilizer contains a lot of mold and bacteria. 3. Keep orchids in an unventilated place. Fourth, the soil for planting orchids is not breathable.
The orchid root rot you said, if the old reed head is good, you use Tobuzin to soak for 2 hours (whole plant) The dosage of the medicine refers to the instructions. After 2 hours, the orchids are dried, and new pots and new soil should be used when planting, and the pots and soil are best used to eliminate the poison. You can try it, and say it's weird.
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After the orchid rots its roots, it can be removed from the old pot and pruned properly. After pruning, the roots of the orchid can be soaked in carbendazim solution for disinfection and sterilization. After soaking, the orchid can be transplanted in loose and breathable soil, and an appropriate amount of rooting powder can be added to the soil, which can promote the root of orchid flowers, and reasonable maintenance is required in the later stage.
During the growth period of orchids, if the root system is rotten due to improper maintenance, the root system needs to be pruned. When the temperature is right and the weather is clear, remove the orchids from the old pots. After the orchid is depotted, the soil at the roots needs to be removed and cleaned, and after washing, proper pruning can be carried out to cut off both rotten and worn-root roots.
After cutting off the rotten roots, the roots of the orchid can be soaked in carbendazim solution for 10 to 20 minutes. After soaking, it can be taken out and placed in a cool and ventilated place to dry, and can be replanted later. During the curing period, you can choose a loose, fertile, breathable and well-drained nutrient soil, and disinfect the soil and new pots in advance.
After disinfecting the pots, you can put the soil in the pots, pour in the appropriate amount of rooting powder, and stir it well. Once the soil is loaded, the dried orchids can be transplanted into new potting soil. After transplanting, the orchid needs to be watered in an appropriate amount, which is conducive to the root system to adapt to the new soil, and the orchid can be placed in a cool and ventilated position for maintenance after watering.
During the maintenance period, it should be noted that the root system of the orchid has not yet adapted to the new soil, and the amount of watering needs to be controlled. During the curing period, the soil needs to be kept moist and protected from direct sunlight. After the orchid adapts to the new soil and grows new roots, it can be given sufficient light, appropriate water and fertilizer to promote the growth of the orchid.
You can buy sulfur powder to try,**rotten roots.
Desert roses rotten roots! Cut a knife here, and soon it will grow new roots.
First of all, the rotten part needs to be removed, leaving about 3-5cm of root core, soaked in potassium permanganate solution for about 15 minutes before drying. Prepare suitable pots and planting materials such as soft river sand or moss, and soak them in boiling water to disinfect them. Then the dried orchids are planted in pots filled with river sand, covered and compacted with planting materials, and a layer of moss is spread on the surface to moisturize. >>>More
If you are raising potted orchids, you should water them regularly every day, not too much water, and put them in a relatively dry environment, not in a humid environment. And if you give nutrient soil, you shouldn't give too much.
Cut off the rotten roots and replant them. Be careful to water thoroughly the first time, wait for the soil to dry before watering the second time, and wait for new roots to grow and it will be fine. Spider plant likes water, as long as you live after you can water often, but you must remember that you can't use tea water, I used to plant spider plant, at the beginning of the growth is very good, and then I heard that tea water is good for watering flowers, I will drink tea every time after the rest of the watering spider plant, after a few times the roots will rot.