1、 Fertilization method

1. Type: the type suitable for Rhododendron should be selected for fertilization. It can usually be applied with organic liquid fertilizer or organic fertilizer. Reasonable fertilization can be more conducive to its flowering

2. Time: in 3-5 years, you can apply fertilizer almost once a week, and you can grow better with sufficient nutrients. From June to August in summer, when the temperature rises, it will sleep. At this time, there is no need to apply fertilizer, otherwise it will burn roots and turn yellow. In September of autumn, it will resume growth and can be applied with phosphate fertilizer and liquid fertilizer. In October of autumn and winter, fertilization can be suspended, otherwise it will not be easy to spend the winter

3. Fertilizer amount: for newly growing seedlings, fertilization is generally not required. The usual amount of fertilizer should be well controlled. Usually, it should not exceed 20g each time. If excessive fertilizer is applied, it will also burn the plant roots

2、 What about excessive fertilization

1. If the fertilizer with good water solubility is applied excessively, it can be washed by watering a lot, so that the water can take away the excess fertilizer and avoid the damage of the root system of the plant

2. In order to avoid the rot of plant roots, an appropriate amount of fungicide and rooting agent can also be watered, which can well reduce the breeding of bacteria, and rooting agent can promote the recovery of roots

3. However, if unfermented fertilizer is applied, the basin shall be removed and the old soil shall be replaced. If the root system is rotten, prune and disinfect it, and then put it in the basin again