What is the best fertilizer for blueberry fertilization? If you use the right fertilizer, blueberries will grow faster.

Because the growing conditions of blueberries are relatively strict and they are sensitive to fertilizers, we must choose some more rigorous and scientific methods when fertilizing blueberries. For example, we should choose different fertilizers according to the different needs of the growth period, use nitrogen fertilizer as the main fertilizer before germination, and use nitrogen, phosphorus and potassium fertilizers as the main fertilizers after fruit setting, combined with some ordinary compound fertilizers, and use phosphorus and potassium fertilizers as the main fertilizer before harvesting.

Fertilizer for blueberries

1. Organic fertilizer

Compared with chemical fertilizers, blueberries are more suitable for organic fertilizers that are complete in nutrition, rich in microorganisms, and low in salt, such as fermented chicken manure, pig manure, cow manure, various cake fertilizers, bone meal and other organic fertilizers. This type of fertilizer is milder and has a longer lasting effect.

2. Nitrogen fertilizer

Nitrogen fertilizer needs to be applied during the growth period of blueberries, but in the later stages of growth, as the amount of nitrogen fertilizer applied increases, the yield tends to decrease, the fruit becomes smaller, the ripening time is prolonged, and the overwintering shoots are severe, so nitrogen fertilizer should be applied reasonably.

3. Phosphate fertilizer

When blueberries are planted in the Changbai Mountain area, the fields are often deficient in phosphorus. Increasing the application of phosphorus fertilizers can significantly increase yields. However, if the soil itself contains a lot of phosphorus, increasing the application of phosphorus fertilizers will reduce yields and delay the ripening of the fruit.

4. Potash fertilizer

If you want blueberries to mature earlier and improve their quality and yield, you need to apply an appropriate amount of potassium fertilizer, but the amount of fertilizer must be controlled. Excessive application will affect the quality of the fruit, cause serious damage over the winter, and lead to magnesium deficiency.

Key points for blueberry fertilization

Blueberry is a crop that is sensitive to chlorine. If the chloride ion concentration in the soil is too high, it will cause chloride ion poisoning and death of fruit trees. Therefore, when fertilizing blueberry trees, be sure to avoid using fertilizers such as ammonium chloride and potassium chloride, and try to use potassium sulfate type compound fertilizers.

In addition, blueberries do not like nitrate nitrogen. The use of nitrate nitrogen can easily cause the death of blueberry trees. Therefore, when planting blueberries, you should avoid using fertilizers such as ammonium nitrate, potassium nitrate, and calcium ammonium nitrate. You can use organic fertilizers and balanced potassium sulfate compound fertilizers to promote better quality and yield of blueberries.