The prospects for blueberry cultivation are still very good now. The soil suitable for blueberry growth needs to be loose, breathable, well-drained, and rich in organic matter. There are many varieties of blueberries, and different varieties have different temperature tolerances and different cold resistance abilities. So how do you fertilize blueberries? What fertilizer is best? 1. Fertilization time Blueberries are usually fertilized from spring to autumn. Autumn fertilization helps the root growth and nutrient reserves of blueberries. 2. Fertilizer Type Blueberries prefer acidic soil, with a pH between 4.0 and 5.5 being optimal. Therefore, fertilizers that can lower soil pH should be used, such as ammonium nitrogen fertilizers such as ammonium sulfate. 3. Compound fertilizer The application of compound fertilizers can increase yields compared to single fertilizers. It is recommended to use a combination of nitrogen, phosphorus and potassium. Most fertilizer ratios tend to be 1:1:1, but in soils with high organic matter content, the nitrogen, phosphorus and potassium ratio should be 1:2:3. 4. Fertilization method Blueberry roots are shallow, so fertilization should be avoided too deeply, 5 to 20 cm is appropriate. Fertilizer can be applied evenly by furrow application or hole application. 5. Amount of fertilizer Blueberries have a low fertilizer requirement, and excessive fertilization may cause damage to the plants. The amount of fertilizer to be applied depends on the soil fertility and the nutritional status of the tree. 6. Organic fertilizers Organic fertilizer can improve soil structure, increase soil organic matter content, and is beneficial to the growth of blueberries. However, it is necessary to ensure that the organic fertilizer is fully decomposed before use. 7. Avoid chlorine-containing fertilizers Blueberries are sensitive to chlorine, so fertilizers containing chlorine, such as ammonium chloride and potassium chloride, should be avoided. 6. Soil improvement If the soil pH is too high, you can lower the pH to accommodate blueberry growth by applying sulfur powder. 7. Foliar fertilization During the growing season, foliar fertilization can be carried out to supplement the trace elements needed by blueberries. 8. Fertilization cycle The fertilization cycle of blueberries should be adjusted according to the age of the tree, growth stage and soil conditions, and usually includes basal fertilizer before spring budding and topdressing during the growing season. The above is an introduction to the characteristics and methods of blueberry fertilization. Fertilization cannot be applied indiscriminately during blueberry planting . You must pay attention to methods and principles of fertilization to ensure the yield of blueberries.
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