What is the best fertilizer for blueberries?

Blueberry fertilization time

1. Blueberry fertilizer can be applied by furrow application or broadcast application. Fertilization is usually carried out before budding in early spring. It can be applied in two times and once more when the berries are ripe.

2. The topdressing of blueberries during maintenance is mainly done by drip irrigation. It can be applied with watering in several periods, such as the budding stage, fruit swelling stage, and after harvesting. The fertilizer raw materials used must have high solubility and low impurity content.

What fertilizer to use for blueberries

Fertilize 10-15 days before blueberries sprout, mainly with high-nitrogen compound fertilizer. Fertilize after fruit setting in May, mainly with nitrogen, phosphorus and potassium compound fertilizer. Fertilize 10 days before harvest, mainly with phosphorus and potassium compound fertilizer. This can promote fruit enlargement and increase yield and quality.

Blueberry Fertilization Method

The specific fertilization method of blueberry should be determined according to the condition of the tree and soil fertility. It has a fibrous root system, and the roots are mostly concentrated on the outer edge of the crown projection. Therefore, the fertilization site should be mainly where these roots are concentrated. Organic fertilizer should be applied relatively deeply, nitrogen fertilizer should be applied shallowly, and phosphorus fertilizer should be applied concentratedly.

Notes on blueberry fertilization

When applying foliar fertilizer to blueberries, choose to do it in the morning or afternoon on a cloudy or sunny day with a temperature of 18-25℃. Spray both sides of the leaves and pay attention to the matching of different fertilizers.