Key points of fertilization technology for apple planting

Key points of fertilization technology for apple planting

(1) For large trees, apply 70-100 kg of well-rotted organic fertilizer per plant from September to November each year after fruit harvesting. For young trees, apply 30-40 kg of well-rotted organic fertilizer per plant after growth has stopped.

(2) Before and after germination, apply 0.2-0.3kg of urea per large tree and 0.1-0.2kg of urea per small tree.

(3) Before or after flowering, apply 0.5-1kg of urea per large tree and 0.2kg of urea per small tree.

(4) From late May to early June each year, apply 1.5-2kg of urea, 3-5kg of calcium superphosphate and 1.5-2kg of potassium nitrate to each large tree, and reduce it appropriately for young trees.