What if the tip of the orchid leaves turn black?
I. adjust the temperature
Reason: the orchid is not hardy. If it is attacked by low temperature, its roots and branches will stop working and the leaf tip will turn black.
Solution: move it to a warm place in winter to avoid frostbite. Don't rush to move out in spring, because the temperature in early spring is unstable and there is often a cold snap. Wait for the temperature to stabilize completely, and then move it outside.
2. Proper shading
Reason: it does not like strong light. If it is directly illuminated by the strong sun, it will blacken the leaf tip.
Solution: it needs to be exposed to astigmatism and shaded properly when the sun is high at noon. The sunshine in winter is relatively short, and the sun is not strong, so there is no need for shade, so it can accept sunshine all day long.
Third, rational watering
Reason: orchids are not resistant to waterlogging, too much watering is easy to make the basin soil stagnant water, will affect its root respiration, leaf tips will be black.
Solution: watering should not be excessive, once a day when the temperature is high, and once every two days when the temperature is low.
Fourth, reduce fertilization
Reason: orchids do not like thick fertilizer, thick fertilizer is easy to burn roots, there are health problems, the leaf tip will turn black.
Solution: fertilization should be light fertilizer, fertilization should be about ten centimeters away from the root, so that the root will not be burned. When watering, pour water on the fertilizer and let the water spread with the fertilizer so that it can be absorbed.
- Prev
What if the loose-tailed sunflower leaves are dry?
There are many reasons for the drying up of loose-tailed sunflower leaves, if it is caused by dry air, it is necessary to increase air humidity; if it is caused by too strong sunshine, it should be given astigmatism and shaded appropriately when the sun is strong; if it is caused by insufficient watering, it is necessary to appropriately increase the number of watering; if it is caused by too thick fertilizer, it is necessary to appropriately reduce fertilization and pay attention to applying light fertilizer.
- Next
At the head of good luck, what's the matter with yellow spots on the leaves?
There are many reasons for macula in the leaves of Hongyun: if it is caused by unreasonable watering, it needs to be watered reasonably, to avoid pouring water on the flower heart, and to ensure that the potted soil is moist and not short of water; if the temperature is not suitable, it is necessary to control the growth temperature of the plant and maintain a constant temperature to ensure that the temperature difference is not too great.
Related
- What if the leaves of potted flowers turn yellow?
- Florescence Control of several Flowers
- Anti-freezing technology and post-freezing nursing technology of flowers
- What is the classification of flowers? What are the common methods of flower classification?
- Prevention and control of alkali and acid damage of flowers in courtyard
- Technology of Anti-freezing and restoring growth of Flower seedlings in greenhouse and greenhouse
- How does flower fertilization not hurt the root? Fertilization technology of flowers
- Key points of disinfection in flower greenhouse
- Several pesticides that are banned or used cautiously in flowers
- How to fertilize the flowers that watch the leaves?