Shri Sanchay
Organic carbon storage & humus accrual
Origin & History
The soil layer, decoded.
Sanchay (संचय) means 'accumulation'. Decades of green-revolution chemical farming reduced Indian agricultural soils to 0.2–0.5% organic carbon — far below the 1.5% threshold of a healthy living soil. Inspired by ICAR-IISS Bhopal's National SOC Stocks Project (2017) and Australia's 4-per-1000 climate initiative, Shri Sanchay turns every farm into a measurable carbon reservoir.
The Science
Soil organic carbon (SOC) is measured at four depths (0–15, 15–30, 30–60, 60–100 cm) via the Walkley-Black wet oxidation method, calibrated against Vis-NIR portable spectroscopy for in-field sensing. SOC delta is converted to CO₂-equivalent at 3.67× and reconciled with Verra VM0042 MRV.
Crop Applications
How Shri Sanchay shows up in the field.
Each crop responds differently to soil-layer intelligence. Validated across ICAR + state agri university pilots.
Cover Crops (Sunn hemp)
Pre-sugarcane Sunn hemp green manure adds 3 t/ha biomass.
Pulses Rotation
Tur–wheat rotation lifts SOC by 0.15%/yr vs. rice–wheat.
Agroforestry
Subabul + sugarcane boundary planting accrues 4 tC/ha/yr.
Composted Crops
Vermicompost + FYM rotation sustains humus over 5-year cycles.
Practices across States
Crop × state ground-truth deployments.
How Shri Sanchay is being practised today — drawn from state agriculture department programmes, ICAR institutes and CIDSA field partners.
Andhra Pradesh
Crop: Multi-crop
APCNF (Andhra Pradesh Community Managed Natural Farming) — 6 lakh farmers, SOC averaging 0.7 → 1.1%.
Sikkim
Crop: Organic state
100% organic policy since 2016 — Sanchay augments with monthly SOC monitoring.
Maharashtra
Crop: Sugarcane
Vasantdada Sugar Institute residue retention protocols paired with Sanchay MRV.
Rajasthan
Crop: Pulses
Khejri-pulse agroforestry in semi-arid Marwar — Sanchay tracks dryland SOC gains.
Farmer Benefits
What the farmer takes home.
Shri Sanchay translates field intelligence into bankable, measurable, daily outcomes — without locking the farmer into proprietary inputs.
0.3–0.5% SOC increase per year → soil-health card upgrade
Tradable carbon credits @ ₹1,500–3,000 per tCO₂e
Higher cation-exchange capacity → fertiliser savings 20%
Drought buffer: every 1% SOC holds an extra 144,000 L/ha water
Connect the Protocol
Explore neighbouring layers.
Shri Mantra is a connected protocol — these layers interact directly with the one you just read.