What fertilizer is best for blueberries?
What kind of fertilizer should be applied to blueberries? Please advise. In blueberry fertilization, applying a complete fertilizer is far more effective than applying a single-nutrient fertilizer. Applying a complete fertilizer can increase yield by 40% compared with applying a single-nutrient fertilizer. On rabbiteye blueberries, applying only nitrogen fertilizer for 6 years reduced yield by 40%. On the dark brown forest soil of the Changbai Mountain area in China...
What kind of fertilizer should be applied to blueberries? Please advise.
In blueberry fertilization, applying a complete fertilizer is far more effective than applying a single-nutrient fertilizer. Applying a complete fertilizer can increase yield by 40% compared with applying a single-nutrient fertilizer. On rabbiteye blueberries, applying only nitrogen fertilizer for 6 years reduced yield by 40%. On the dark brown forest soil of the Changbai Mountain area in China, applying NP and NPK fertilizers increased yield and 100-fruit weight, while applying only nitrogen fertilizer reduced yield and 100-fruit weight. Therefore, blueberry fertilization should be based mainly on complete fertilizers.
Blueberries readily absorb ammonium N, whereas nitrate N is not only difficult for them to absorb but also has adverse effects on blueberry growth. The most recommended ammonium N fertilizer for blueberries is (NH4)2SO4. Applying (NH4)2SO4 to the soil not only supplies ammonium N to blueberries but also helps lower soil pH, making it especially suitable for mineral soils and calcareous soils with higher pH.
Click to get more blueberry growing techniques
Click to get more fruit growing techniques