For Aquilaria malaccensis aged 2 years and above, the focus shifts from vegetative growth to wood thickening, immune system strengthening, and preparation for future inoculation or natural resin formation. At this stage, organic fertilizers should support sturdy trunk development, stress resistance, and resin biosynthesis potential.
Best Organic Fertilizers for Aquilaria (2 Years Old and Above):
| Fertilizer Type | Key Benefits | Application Tips |
|---|---|---|
| Well-Matured Goat or Chicken Manure | High in phosphorus and potassium, improves tree structure and root support | Apply 2–3 kg per tree every 4 months around the dripline |
| Compost + Biochar Blend | Improves soil microbial life and retains nutrients long-term | Use as a soil amendment once or twice a year |
| Seaweed Extract (Liquid or Granular) | Contains natural hormones (cytokinins), boosts defense mechanisms | Foliar spray or soil drench every month |
| Fish Hydrolysate / Amino Acid Fertilizer | Encourages cambium cell expansion, supports overall tree health | Apply 20 mL per liter as foliar or soil feed every 4–6 weeks |
| Wood Vinegar (Pyroligneous Acid) | Enhances nutrient uptake, deters pests, and improves microbial diversity | Dilute 1:500 for foliar or soil application monthly |
| Trichoderma- or Mycorrhiza-based Biofertilizers | Supports deep rooting and fungal symbiosis, improves drought tolerance | Inoculate root zone every 6 months |
| Fermented Fruit Juice (FFJ) | Provides trace elements and mild sugars for microbial activation | Foliar spray every 2–3 weeks during active growth season |
Application Guidelines:
- Prioritize root zone feeding over trunk application.
- Apply during early morning or late afternoon to avoid evaporation loss.
- Ensure mulching with organic matter like rice straw, dry leaves, or coconut husk to retain moisture and feed soil biota.