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Biochar
Charcoal made by pyrolysis of biomass at 400–700°C in limited oxygen. Permanent carbon storage in soil. Creates stable porous habitat for beneficial microbes. Locks carbon for 1,000+ years.
Quick Facts
Nitrogen (N)
0%
Phosphorus (P)
0%
Potassium (K)
0%
Microbial Activity
high
Cost / Acre
Near zero (farm residues)
Shelf Life
Permanent in soil (1,000+ years)
Application Guide
Rate: 1–3 t/ha (one-time application, permanent benefit)
Frequency: Once every 5–10 years
Ingredients
| Ingredient | Quantity | Purpose |
|---|---|---|
| Any biomass: rice husks, crop stalks, sugarcane trash, wood chips | As available | — |
Preparation Steps
1
Pile biomass in cone or trench. Light from top.
2
Let burn until gray ash starts forming on top.
3
Douse with water or cover with soil to stop combustion — result is pyrolysis (char, not ash).
4
CRITICAL: Always charge biochar before use — soak in Jeevamrutham 24 hours.
⏱ 24 hours
5
Mix charged biochar with compost 1:4 ratio.
⚠️ Important Notes
- •Never apply uncharged biochar — immobilizes N for 6–12 months
- •Rice husk char most available in India — excellent quality