Schematic diagram of maintenance and watering<br>(2) Fertilization<br>① Fertilization mainly includes applying base fertilizer and topdressing:<br>The base fertilizer should be applied during the dormant period of the plant, with fully decomposed organic fertilizer being the best.<br>Compound organic fertilizer or chemical fertilizer can be used for topdressing. For flowering shrubs, a topdressing mainly consisting of phosphorus and potassium should be applied after flowering.
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