Scale: If the plants are watered with tap water for a long time, the impurities remaining in the water will produce white things. It is usually best to use rainwater or well water for watering.
Mold: If the maintenance environment is not ventilated, the water cannot evaporate in time and mold may develop. The upper soil must be cleaned up and ventilation must be enhanced to ensure air circulation.
Alkalization: The content of microorganisms and organic matter in the soil decreases, and a layer of white appears when the soil becomes compacted.
1. Scale
The white substance on the surface of the soil in the flower pot is likely to be scale. If the plants are watered with tap water for a long time, impurities in the water will easily appear on the surface of the soil, usually the residue of some bleaching powder or disinfectant. If you usually water it, try to choose well water or rainwater. If it is not convenient, try to let the tap water dry for two days before using it to water the flowers.
2. Mold
If the flower pot is maintained indoors for a long time in an unventilated location, the water in the flower pot cannot evaporate in time, and mold is likely to occur, or some unripe rice water is often poured into the flower pot. , plus if the indoor temperature is relatively warm, mold is likely to occur. It is necessary to clean out the top layer of soil in time, strengthen ventilation, and improve the frequency of watering, so as to reduce the occurrence of mold.
3. Alkalization
If the soil surface becomes white and hardened, it is most likely caused by soil alkalization. After the content of microorganisms and organic matter in the soil decreases, the soil will become hardened and alkalized, and the soil surface will appear Salt-alkali layer. If you like plants in alkaline soil, you don’t need to worry. If you like plants in acidic soil, this environment is not suitable for their growth. Various problems will occur over time. It is recommended to improve the soil in time, or give them some water. Replace with new potting soil. When fertilizing, you need to be careful not to apply unripe fertilizer to it.
