Organic fertilisers promote soil life and sustainable growth. Use compost, worm humus and natural amendments correctly.
Organic fertilisation creates living soil and sustainable cannabis production:
**Organic fertiliser basics:**
*Benefits of organic fertilisation:*
- Long-term nutrient release
- Build-up of soil life
- Improved soil structure
- Environmentally friendly production
- Flavour improvements
*Nutrient availability:*
- Slow, controlled release
- Microbial conversion required
- Temperature-dependent activity
- pH value influences availability
- Biological buffering effect
**Base components:**
*Compost:*
- Basis for organic substrates
- Rotted organic materials
- NPK ratio about 1-1-1
- Improves water retention capacity
- Activates soil life
*Worm humus (vermicompost):*
- Premium organic fertiliser
- High nutrient availability
- Excellent soil improvement
- Rich in beneficial microorganisms
- Cannot be overdosed
*Slurry (rotted):*
- High nitrogen content
- Must be completely decomposed
- Cattle, horse, chicken manure
- compost for 6-12 months
- Pathogen risk with fresh manure
**Special organic amendments:**
*Kelp meal (seaweed meal):*
- Rich in trace elements
- Natural growth hormones
- Improves stress resistance
- Promotes micronutrient uptake
- 1-2 tablespoons per litre of substrate
*Bat Guano:*
- Highly concentrated nutrients
- Different NPK ratios
- Bat vs. seabird guano
- Immediate and slow release
- Careful dosing necessary
*Bone meal:*
- High phosphorus content (0-12-0)
- Ideal for flowering phase
- Slow release
- Calcium as a bonus
- 1-3 tablespoons per litre
*Blood meal:*
- High nitrogen content (12-0-0)
- Quickly available
- Vegetative phase ideal
- Can attract pests
- Dose sparingly
**Super Soil mixtures:**
*Basic Super Soil recipe:*
- 40% basic soil
- 30% compost/worm humus
- 20% drainage (perlite/vermiculite)
- 10% amendments (kelp, guano, etc.)
- 4-6 weeks composting
*Advanced Super Soil:*
- Additional minerals
- Mycorrhiza fungi
- Beneficial Bacteria
- Long-term amendments
- More complex nutrient profiles
**Liquid organic fertilisers:**
*Compost Tea:*
- Extract compost in water
- 24-48h with aeration
- Rich in beneficial microbes
- Weekly application
- Use fresh
*Fish Emulsion:*
- Quickly available nitrogen
- High biological activity
- Strong odour
- Dilution important (1:10)
- Vegetative phase ideal
*Molasses feeding:*
- Food for soil microbes
- Promotes microbial activity
- Improves nutrient cycling
- 1 tablespoon per litre of water
- Combine with other fertilisers
**Timing of organic fertilisation:**
*Pre-Plant Preparation:*
- Prepare substrate for 4-6 weeks
- Incorporate amendments
- Wait for composting process
- pH stabilisation
- Develop biological activity
*Vegetative feeding:*
- Nitrogen-emphasised amendments
- Compost Tea weekly
- Fish Emulsion diluted
- Kelp Meal monthly
- Use slow release
*Bloom feeding:*
- Phosphorus/Potassium Focus
- Bat Guano (High
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