Soil Improvement: Soil organic matter content and pH are important factors for the survival of blueberry cultivation. In general, soils with an organic matter content of 5% and a pH of 4.0 to 5.5 are required to be modified. When the organic matter content is less than 5%, sand or sawdust, peat moss, rotten bark, etc. are incorporated into the soil before planting. When the soil pH (>5.5) or calcium content is too high, the pH needs to be lowered. A large number of studies have shown that the application of sulfur is an effective measure to reduce soil pH. At present, sulfur powder is used to lower the pH at home and abroad. The specific sulfur application should be determined according to different soil conditions and pH values. Soil pH is too low (
Blueberry planting: Planting in spring and autumn. Rabbit eyes blueberry plant spacing 2.0 m2.0 m, high bush blueberry 1.2 m2.0 m, short bush blueberry 1.0 m1.0 m. The rabbit's eye blueberry is self-defining, it is best to configure high-cone blueberry to pollinate the tree. High-cone and low-branch blueberries have higher self-fertilization rates, but they have better pollination trees. The ratio of main varieties and pollination varieties is 1:1 or 1:2. Seedlings in the second year after planting seedlings will see fruits and up to high yields in the fifth year.
Soil and Fertilizer Water Management: Blueberry is a fibrous root system with a shallow root distribution. Therefore, fertilizer and water management should be strengthened. The principle of watering is that the drought can be poured and the water can be discharged. Soil fertilization should be determined based on soil and leaf analysis. Blueberry is an oligotrophic plant and must not be over-fertilized in order to avoid fertilizer damage. Blueberries are sensitive to chlorine. Chlorine-containing fertilizers such as ammonium chloride and potassium chloride should not be used. Ammonium nitrogen fertilizer is preferred when nitrogen is applied. When the blueberry is planted, it mainly applies NPK compound fertilizer, and it rarely applies farmyard manure. According to Li Yadong's research, cultivation of blueberries on dark brown forest soils has a N: 1 compound fertilizer ratio of 1:1:1 and a fertilizing amount of 500–1000 kg/hm2. High-band blueberries and blue-eye rabbits are treated by furrows, and blueberry blueberries are mainly applied by sprinklers. The depth is 10 to 15 cm. Fertilization is carried out before budding in early spring, and it can also be applied once during fruit ripening.
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