What fertilizer is best for blueberries?

As a popular berry fruit , blueberry is loved by consumers for its unique taste and nutritional value. However, if you want blueberries to grow healthily and bear abundant fruit, reasonable fertilization techniques are crucial. So what kind of fertilizer is best for blueberries? Let’s take a look below.

1. What kind of fertilizer is best for blueberries?

1. Acidic fertilizer : Blueberries prefer acidic soil. The soil pH should be 4.0-5.5, and the optimum range is 4.3-4.8. Therefore, acidic fertilizers such as ammonium sulfate, magnesium sulfate and potassium sulfate should be given priority.

2. Organic fertilizer : Blueberries have a high demand for organic matter. Organic fertilizers such as well-rotted compost, well-rotted chicken manure or well-rotted animal manure are good choices.

3. Trace element fertilizers: Blueberries also need phosphorus fertilizer, iron fertilizer, and trace element fertilizers such as zinc, boron, manganese and copper.

2. Daily management of blueberries

1. Soil management: Keep the soil loose, well ventilated, moist but not waterlogged.

2. Clean tillage and sodding method: Clean tillage is carried out from early spring to August, and sodding method can maintain soil moisture and facilitate mechanical operations.

3. Soil covering: Using sawdust, leaves, straw and other materials to cover the soil will help increase soil organic matter and improve soil structure.

4. Weeding: Weed in a timely manner, avoid using chemical herbicides , and adopt manual or mechanical methods.

5. Pruning: Pruning of young trees is mainly to expand the crown, while pruning of mature trees is mainly to control tree height and improve lighting conditions.

6. Watering: Blueberry roots are shallow and like moisture. Timely watering is very necessary. Pay attention to the water source and water quality.

3. Notes on blueberry fertilization

1. Amount of fertilizer: Excessive fertilization can easily damage blueberry trees. The amount of fertilizer should be carefully determined based on soil fertility and the nutritional status of the tree.

2. Avoid chlorine-containing fertilizers: Blueberries are sensitive to chlorine, so chlorine-containing fertilizers such as ammonium chloride and potassium chloride should be avoided.

3. Avoid nitrate nitrogen fertilizers: Blueberries are sensitive to nitrate nitrogen. Using nitrate nitrogen can cause poisoning and should be avoided.

4. Use of calcium fertilizer: Blueberry is a calcium-sensitive crop, which hinders the absorption of calcium. Excessive use of calcium fertilizer should be avoided.

5. Balanced fertilization: ensure a balanced supply of various nutrients.

4. Effect of blueberry fertilization

Base fertilizer: Applied in autumn, mainly organic fertilizer, with appropriate amount of acid fertilizer and phosphorus fertilizer.

Top dressing: It should be carried out several times during the growing period of blueberries. The key periods include before germination, flowering and fruiting period and before harvesting.

Fertilization method: follow the principle of "small amounts and multiple times". The fertilization location should be outside the tree's shadow to avoid root burn.

Scientific fertilization techniques and meticulous daily management can effectively promote the healthy growth of blueberries and improve yield and quality.