1. Receive sunlight. Photosynthesis is essential for the growth of blueberries. If they are exposed to insufficient light for a long time, they will have fewer flower buds and poor fruit quality. Therefore, blueberries should be moved to outdoor places with sufficient light to receive sunlight.

2. replenish water. Blueberries have shallow roots and like humid environment. Pay attention to the water quality when watering blueberries. The sodium, calcium and pH value in deep well water are too high, so sulfuric acid can be added to well water to neutralize the pH value before watering.

3. control the temperature. Blueberries have high temperature requirements, and the most suitable temperature environment is between 1 and 2 degrees, which is extremely cold-resistant. In winter, it is best to build a greenhouse with suitable temperature for blueberries to prevent plants from freezing to death.

4. Rational fertilization. Cattle and sheep manure can be added to the soil in the early stage of blueberry planting, and large fertilizer should not be applied in the maintenance process. Generally, nitrogen, phosphorus and potassium mixed in equal proportion or diluted ammonium sulfate solution should be applied to blueberry.

5. Blueberries need to be pruned properly after fruiting, and maintain a good plant type to promote branching, which is beneficial to flowering and bearing more fruits.

6. The most common disease in maintaining blueberries is powdery mildew. This fungal disease is easy to cause the leaves to turn brown, which will seriously lead to the hanging of blueberries. Improper treatment will reduce the yield of blueberries. Once you see blueberry infected with fungal diseases, you must remove them in time.