What Happened
- Biofertiliser adoption by Indian farmers has been accelerating, driven by government incentives under PM-PRANAM (Promotion of Alternate Nutrients for Agriculture Management), rising input costs, and growing awareness of soil health degradation from chemical overuse
- The India biofertiliser market was valued at approximately $142.97 million in 2024 and is growing at a CAGR of approximately 8.9–11.5%, projected to reach $233–400 million by 2030–2033
- Key biofertiliser types in use: Rhizobium (nitrogen-fixation in legumes), Azotobacter and Azospirillum (nitrogen-fixation in non-legume crops), Phosphate-Solubilising Bacteria (PSB), mycorrhiza (nutrient uptake enhancement), and Blue-Green Algae (for paddy fields)
- Despite market growth, penetration remains low: less than 1% of India's cropped area is treated with biofertilisers, according to the NITI Aayog Task Force — indicating massive headroom for expansion
- The West Asia energy crisis, by raising the cost of synthetically produced nitrogenous fertilisers, is expected to accelerate the case for biofertilisers as cost-effective partial substitutes
Static Topic Bridges
Biofertilisers: Mechanism and Types
Biofertilisers are formulations containing live or latent microorganisms that — when applied to seeds, plant surfaces, or soil — colonise the root zone and promote plant growth by increasing nutrient availability. Unlike chemical fertilisers that directly supply nutrients, biofertilisers enhance soil processes. Major types: (1) Nitrogen-fixing biofertilisers: Rhizobium (symbiotic in legume root nodules), Azotobacter (free-living, non-legume crops), Azospirillum (associative, cereal crops), and Blue-Green Algae/Cyanobacteria (paddy fields); (2) Phosphate-solubilising bacteria (PSB): solubilise insoluble phosphates in soil, improving P availability; (3) Mycorrhizal fungi: form symbiotic association with plant roots, dramatically expanding the root's effective absorptive area.
- Rhizobium can fix 50–200 kg of atmospheric nitrogen per hectare per year in legume systems — replacing equivalent chemical fertiliser doses
- Azotobacter applies to non-legumes: rice, wheat, maize, sugarcane; provides 20–30 kg N/ha
- PSB can mobilise 30–50 kg P/ha from soil phosphate reserves, reducing DAP application needs
- Biofertiliser quality is regulated by the Fertiliser (Control) Order (FCO), 1985 under the Essential Commodities Act
Connection to this news: The multiplicity of biofertiliser types — nitrogen fixers, phosphate solubilisers, potash mobilisers — means they can address multiple nutrient needs across diverse crop systems, potentially reducing dependence on urea (N), DAP (P), and MoP (K) simultaneously. This is increasingly relevant given the record import levels for all three chemicals.
PM-PRANAM and Sustainable Agriculture Policy
PM-PRANAM (Pradhan Mantri Programme for Restoration, Awareness, Nourishment, and Amelioration of Mother Earth) was launched as part of the Union Budget 2023-24. It incentivises states to reduce chemical fertiliser consumption by offering a share of the saved fertiliser subsidy as a grant — 50% of saved subsidy goes to the state, and 70% of that state grant must be used to reward farmers, panchayats, and self-help groups (SHGs) who adopt alternate nutrient management. This creates a financial incentive for states to promote biofertilisers, organic farming, nano urea, and other substitutes.
- PM-PRANAM: launched 2023-24 Union Budget; incentivises chemical fertiliser substitution
- Grant formula: 50% of reduced subsidy cost → state; 70% of state grant → farmers/panchayats
- National Mission for Sustainable Agriculture (NMSA): broader framework supporting organic, natural, and biofertiliser-based farming
- Paramparagat Krishi Vikas Yojana (PKVY): cluster-based organic farming promotion; ₹32,000/hectare over 3 years
Connection to this news: PM-PRANAM creates the fiscal incentive architecture for biofertiliser adoption — but actual farmer behaviour change requires agronomic extension support through KVKs, demonstration plots, and quality assurance of biofertiliser products, which remains the implementation bottleneck.
Soil Health and the Case for Reducing Chemical Fertiliser Dependency
India's soils show widespread degradation from decades of chemical fertiliser overuse: acidification in northeast and eastern states, alkalisation in parts of the Indo-Gangetic Plain, and micronutrient deficiencies (zinc, boron, sulphur) across large tracts. The Soil Health Card (SHC) scheme, launched 2015, has tested soils across 21 crore plots and issued personalised crop-specific fertiliser recommendations to 14 crore farmers. Balanced fertilisation — adjusting N, P, and K ratios and supplementing with secondary and micronutrients — is the agronomic priority. Biofertilisers, by stimulating soil biological activity, can restore organic matter content and improve long-term fertility.
- India's soil testing: 14 crore Soil Health Cards issued under SHC scheme (launched 2015)
- India's average NPK application ratio: 6.2:2.5:1 (far above the recommended 4:2:1)
- Soil organic carbon deficiency: below 0.5% in most Indian soils; optimal range 1.5–2%
- India's nitrogen use efficiency (NUE): approximately 30–35% — meaning 65–70% of applied urea is lost to volatilisation, leaching, or denitrification
Connection to this news: The low nitrogen use efficiency of chemical fertilisers — where most applied urea is wasted — makes the economic case for biofertilisers stronger: even if biofertilisers provide only 30–50 kg N/ha, if chemical NUE is 30–35%, the net agronomic advantage of biofertilisers is proportionally larger than their nominal N-fixation rates suggest.
Key Facts & Data
- India biofertiliser market size (2024): ~$142.97 million
- Projected market size (2030): ~$233–400 million; CAGR: ~8.9–11.5%
- Cropped area under biofertilisers: less than 1% (NITI Aayog Task Force)
- Rhizobium nitrogen fixation: 50–200 kg N/ha/year
- Azotobacter (non-legumes): 20–30 kg N/ha
- PSB phosphate mobilisation: 30–50 kg P/ha
- India's NUE for urea: ~30–35%
- Soil Health Cards issued: 14 crore
- PM-PRANAM launch: Union Budget 2023-24
- PM-PRANAM grant formula: 50% of saved subsidy → state; 70% of state grant → farmers