Selection of pots should be based on the size of the plant to choose the right flower pots, clay tile pots as well, the general pot diameter (inner diameter) should not exceed half of the diameter of the crown. Du Fu Xi acidic soil, requiring a pH of 4.25-5.5, do not maintain this acidity, potted azalea is difficult to survive, and the pot soil requires loose drainage, rich in humus, do not use sticky heavy loess. When the soil is used, it is best to prepare the rhododendron soil. The plants previously cultivated with loose soil should still use loose soil. It can be mixed with a small amount of decomposed horse dung and bone powder. When used, the pine soil is infiltrated with water in advance; For cultivation, mountain soil is also used. If loose pine soil was originally used for the cultivation of loose soil, the opposite would be too strong because of its high water permeability, which would lead to the death of the original alfalfa, resulting in the death of the wet and dry plants. Long-term wetting affects the absorption and growth of roots. In severe cases, it will cause some roots to suffocate and cause plants to defoliate, yellow, and stop growing. Rhododendron is a shallow-rooted plant with no main root system and many fibrous roots. It is mainly distributed in the upper part of the potted soil and forms a felt-like shape, making it difficult to penetrate into deep layers. Therefore, when putting on the pot, cover the drain hole with two pieces of tile “into†and cover with a layer of coarse sand as the drainage layer, and then gently cut off the soil of the plant and remove 1/3 of the old soil. Decay the roots, sprinkle a layer of culture soil on the drainage layer, and then put the plants in the pot, the soil ridges and the pot wall maintain a distance of about 3 cm, then fill the prepared culture soil into the surrounding space, and press gently with a thin rod. In fact, let potted soil and roots develop, and finally drenched water, set aside half of the shade, and then turn into normal management after half a month.
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