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What are the reasons that azaleas drop their leaves and die after being watered with organic fertilizer?
After azaleas are watered with a liquid organic fertilizer that has been composted, abnormal leaf drop and death may occur for the following reasons: First, the eggshells and soybean residue may contain a small amount of table salt (sodium chloride), and the fine fibrous roots of azaleas are relatively sensitive to sodium ions, causing root rot, leaf drop, and death. Second, the 5% concentration may still be too strong for the fine hairy fibrous roots of azaleas, or the fertilizer liquid left at the end may have an even higher concentration, making it hard for the plant to withstand. Third, the timing of fertilization may be inappropriate, such as after the flowers fade, when new root tips have just emerged,