1. Disease causes

Reason: orchids are more likely to suffer from soft rot. after the disease, its base will begin to rot, resulting in problems in nutrient transmission, resulting in the inability of leaves to obtain water and nutrient supply. When the nutrition supply is insufficient, its leaves will be weak due to dehydration, and will turn yellow and wither in the later stage

Measures: spray 500 times of chlorothalonil solution on the diseased part of the plant, generally once every 10 to 15 days, three times in a row. After spraying the medicine, move it to a well ventilated place for maintenance

2. Lack of moisture

Reason: during normal maintenance, if the basin soil is dry and is not watered in time to supplement water, its leaves will become soft due to lack of water. And long-term water shortage will also lead to yellow and withered leaves and dim color

Measures: replenish water to the plant in time. At the beginning, you can pour less water for many times, so that the plant can gradually restore its ability to absorb water

3. Potassium deficiency

Reason: potassium fertilizer generally has the effect of anti inversion. If the plant lacks potassium fertilizer, its leaves will also appear soft and weak

Measures: it is necessary to apply water potassium fertilizer, but it should not be too thick. Plant ash can be soaked in water for precipitation, and then the top water can be used to irrigate the plants

4. Insufficient light

Reason: the growth of orchids needs a certain amount of light, but it is not resistant to direct sunlight, so it needs to be maintained in semi shade. However, if it is maintained in a shady environment for a long time, so that the plant is not exposed to sunlight, the leaves cannot synthesize nutrients through photosynthesis, and the small temperature difference between day and night is not conducive to the accumulation of nutrients. Over time, the leaves will be thin and not strong, easy to soften

Measures: it is necessary to give it appropriate light to promote plant growth. It is best to move it to a semi shade with certain scattered light for maintenance, so that the light will not be too strong and suitable for its growth