The pH of the soil also has a great influence on the growth of blueberries. Blueberry is a plant that likes acidic soil. The suitable pH value for growth is between 4.0 and 5.2, and the optimum pH value is between 4.5 and 4.8. Too high pH value will often lead to the lack of iron and the loss of green in blueberry plants, and at the same time, it will absorb too much calcium and sodium, leading to plant growth or withering. Too low blueberry will cause heavy metal poisoning due to excessive absorption of heavy metal elements, and then the growth will be weak and the leaf edge will be scorched. The content of organic matter in the soil should also be kept at a high level, because the main function of organic matter in the soil is to improve the soil structure, loosen the soil and make the roots of blueberry grow better.
The water content of the soil should also reach its appropriate content. Too dry soil will cause the leaves of blueberries to turn red, which is the initial state. With the deepening of drought, blueberry branches will become smaller and brittle, the early leaves will fall off easily, and the fruit setting rate will also decrease. He died when he was seriously dry. But poor drainage can also hurt blueberries, and blueberries will be frozen and pulled out at this time. At this time, the respiration of roots will be hindered, and anaerobic respiration may occur. At this time, a large number of acidic substances will be produced, which will harm the roots of plants and hinder their growth. In addition, the permeability of soil is better. The permeability of soil is mainly judged by the water content and structural composition of soil. Under the condition of good ventilation, the oxygen content should be as high as about 20% to be the most suitable for blueberry growth.