China-US Race in Science-Industry Linkages: India Must Catch Up

Source: The post “China-US Race in Science-Industry Linkages: India Must Catch Up” has been created based on “China-US Race in Science-Industry Linkages: India Must Catch Up” published in “Indian Express” on 2nd September 2026.

UPSC Syllabus: GS-3-Economy

Context: Paddy straw or parali has traditionally been treated as agricultural waste, leading to its burning due to its bulky nature, low value and the narrow window available before wheat sowing. However, growing demand from power plants, CBG units and pellet manufacturers has given paddy straw an emerging economic value of around ₹1.5–2/kg in parts of Punjab.

Reason for persisting stubble burning

1. Bulky residue: Paddy straw is bulky and costly to transport over long distances.
2. Narrow sowing window: Farmers have limited time between paddy harvesting and wheat sowing.
3. Cost of alternatives: Collection, baling, storage and transportation involve additional costs.
4. Limited local value addition: Farmers generally supply raw straw, while value addition takes place after it leaves the village.
5. Burning is quick and economical: Where alternatives involve cost, labour and uncertainty, burning remains an attractive option.

Potential of decentralised biochar processing

1. Biochar production: Biochar is a carbon-rich material produced by heating biomass under limited oxygen. About 100 kg of dry parali can yield around 30 kg of biochar.
2. Improves soil quality: Its application can improve water retention and nutrient-use efficiency.
3. Carbon sequestration: Unlike burning, which releases much of the carbon into the atmosphere, biochar can retain a significant share of carbon in soil for a century or longer.
4. Addresses Punjab’s agricultural stress: It can potentially help address declining soil quality and intensive fertiliser use within the rice-wheat system.
5. Reduces transportation costs: Processing near farms reduces the need to transport bulky raw straw over long distances.
6. Creates local value: Farmers and local institutions can capture a greater share of the value generated from their agricultural residue.

Proposed village-level model

1. A technology provider can initially install and operate the biochar unitIt can train local operators and ensure quality and emission standards.
2. Over time, ownership and operational capacity can be transferred to an FPO, SHG, cooperative or other credible local institution.
3. Farmers can bring straw to a nearby processing point, similar to taking wheat to a village flour mill.
4. A portion of the biochar can be returned to farmers’ fields, while the remaining quantity can be sold where markets exist.
5. The government need not operate thousands of units; instead, it can provide standards, training, concessional finance and initial support.
6. Panchayats can facilitate land availability and local coordination.

Significance

1. Economic: Converts agricultural waste into a marketable resource and enables greater farmer-level value addition.
2. Environmental: Reduces open-field burning and associated carbon emissions.
3. Agricultural: Returns a useful product to soil and can improve soil health and water-use efficiency.
4. Rural development: Creates local processing capabilities and potentially generates employment.
5. Behavioural: Making residue economically valuable can create a stronger incentive against burning than enforcement alone.

Way Forward: A shift is required from merely asking “How can straw be removed without burning?” to asking “Where should value from parali be created, and who should capture it?” Decentralised processing can make alternatives to burning economically viable by bringing technology closer to farms.

Conclusion: The village chakki model demonstrates that agricultural commodities need not travel long distances merely for processing. Similarly, decentralised biochar units can process paddy residue closer to farms, reduce transport costs, create local value, improve soil health and provide farmers with an economic incentive to avoid burning. Thus, the solution to parali burning may lie closer to the farm itself.

Question: The solution to the problem of paddy straw burning may lie in decentralised, village-level processing rather than merely in transporting crop residue away from farms.” Discuss the potential of biochar-based decentralised processing in addressing stubble burning and improving farm-level value addition.

Source: Indian Express