Case study: Regenerative agriculture — a city or utility pilot and the results so far

When the city of Indore, India launched its peri-urban regenerative agriculture pilot in 2022, soil organic carbon on participating farms averaged 0.4%, barely above the threshold for productive agriculture. By the end of 2025, monitored plots showed organic carbon levels of 1.1 to 1.6%, a threefold increase that translated into a 28% average yield improvement for staple crops and a 34% reduction in synthetic fertilizer use across 4,200 hectares. According to ICRISAT's 2025 monitoring report, the program generated $3.8 million in net economic benefit for 1,860 participating smallholder farmers while sequestering an estimated 18,400 tonnes of CO2 equivalent over three growing seasons.

Why It Matters

Regenerative agriculture represents one of the most scalable and cost-effective pathways for simultaneously addressing food security, climate mitigation, and rural economic development in emerging markets. The Food and Agriculture Organization estimates that 33% of global soils are moderately to highly degraded, with annual economic losses from soil degradation reaching $400 billion worldwide (FAO, 2025). In Sub-Saharan Africa and South Asia, where smallholder farmers produce 70 to 80% of the food supply, degraded soils directly threaten both livelihoods and nutrition security.

City and utility-led pilots offer a distinct advantage over purely agricultural programs. Municipalities that depend on surrounding agricultural landscapes for water quality, flood management, and food supply have direct financial incentives to invest in soil health. A city that pays $2 million annually for water treatment downstream of conventional farmland can reduce those costs by 15 to 30% through upstream regenerative practices that filter runoff and reduce sediment loading. This creates a payment-for-ecosystem-services model where urban ratepayers effectively subsidize soil restoration, generating returns for both farmers and city budgets.

The challenge is translating pilot-scale successes into systemic change. Most regenerative agriculture pilots operate on 1,000 to 10,000 hectares. Scaling to landscape level requires institutional frameworks, measurement systems, and financial mechanisms that few emerging-market municipalities have developed. The pilots documented here provide templates for that scaling process.

Key Concepts

Soil organic carbon (SOC) building forms the foundation of regenerative practice. SOC serves as both a carbon sink and a driver of soil fertility, water retention, and microbial activity. Increasing SOC by 1 percentage point in the top 30 cm of soil sequesters approximately 35 to 40 tonnes of CO2 per hectare, while simultaneously increasing water holding capacity by 20,000 to 25,000 liters per hectare (Lal, 2024).

Payment for ecosystem services (PES) structures allow cities and utilities to compensate farmers for measurable environmental outcomes: reduced nutrient runoff, improved water infiltration, carbon sequestration, and biodiversity enhancement. PES programs in emerging markets typically pay $30 to $80 per hectare per year, compared to $100 to $250 per hectare in OECD countries (World Bank, 2025).

Participatory monitoring combines farmer-led observation with scientific measurement. Rather than relying exclusively on expensive laboratory analysis, successful pilots train farmers to conduct field assessments of soil health indicators (aggregate stability, earthworm counts, infiltration rates) and correlate these with periodic lab-verified SOC and nutrient measurements.

Integrated landscape management treats the agricultural zone surrounding a city as a connected system rather than a collection of individual farms. This approach coordinates cropping patterns, water management, agroforestry placement, and livestock integration across property boundaries to maximize cumulative ecosystem benefits.

What's Working

Indore Peri-Urban Regenerative Agriculture Program, India

The Indore Municipal Corporation partnered with the CGIAR research center ICRISAT and the state government of Madhya Pradesh to launch a regenerative agriculture transition program targeting the 15 km radius of farmland surrounding the city. The program was motivated by water quality concerns: Indore's municipal water treatment costs had increased 40% between 2018 and 2022 due to rising nitrate and pesticide contamination from intensive agriculture in the Khan River watershed.

The pilot enrolled 1,860 smallholder farmers cultivating an average of 2.3 hectares each. Farmers received training in cover cropping, reduced tillage, composting using municipal organic waste, and integrated pest management. The city diverted 120 tonnes per day of source-separated organic waste from its solid waste stream to produce compost distributed free to participating farmers, simultaneously reducing landfill inputs and replacing synthetic fertilizer.

Results after three growing seasons showed: 28% average yield increase for wheat and soybean (the dominant crops), 34% reduction in synthetic fertilizer purchases, 22% reduction in irrigation water use due to improved soil water retention, and a 41% reduction in nitrate loading measured at downstream water quality monitoring stations. The city's water treatment chemical costs declined by $680,000 annually, partially offsetting the $1.1 million annual program cost. Farmer net income increased by an average of $420 per household per year, a 19% improvement over baseline (ICRISAT, 2025).

Kigali Watershed Regenerative Landscape Program, Rwanda

The City of Kigali, in partnership with the Rwanda Agriculture and Animal Resources Development Board (RAB) and the nonprofit ARCOS Network, implemented a regenerative agriculture program across 6,800 hectares in the Nyabarongo River watershed beginning in 2023. The primary driver was flood risk: Kigali experienced $45 million in flood damages in 2022, with upstream deforestation and soil degradation identified as major contributing factors by the city's climate adaptation plan.

The program combined terracing restoration, agroforestry (planting 340,000 nitrogen-fixing trees on farm boundaries and hillslopes), cover cropping with leguminous species, and composting of crop residues. Farmers received PES payments of $45 per hectare per year funded through a surcharge on municipal water bills, supplemented by $2.1 million in grant funding from the Green Climate Fund.

By late 2025, participating farms showed a 31% reduction in soil erosion measured by sediment traps, a 24% increase in dry-season water flow in monitored tributaries (indicating improved groundwater recharge), and a 17% increase in average crop yields. The agroforestry component generated an additional $180 per hectare per year in fruit and timber revenue for farmers. Critically, the Nyabarongo flood gauge recorded 18% lower peak flows during the 2025 rainy season compared to the 2019 to 2022 average, though attribution to the program versus natural variability requires longer monitoring (RAB, 2025).

Cusco Regional Andean Soil Restoration Initiative, Peru

The Cusco Regional Government partnered with the International Potato Center (CIP) and the regional water utility SEDACUSCO to implement regenerative practices across 3,400 hectares of potato and quinoa farmland in the Vilcanota River watershed. The utility faced rising turbidity in its raw water intake due to accelerating soil erosion from conventional tillage on steep slopes, with annual water treatment costs increasing by 12% per year between 2020 and 2023.

The program introduced contour farming, permanent soil cover using native grass strips, reduced tillage for potato cultivation, and restoration of traditional Andean terracing systems. SEDACUSCO provided PES payments of $60 per hectare per year to 920 participating farm families, funded by a 3% surcharge on commercial water tariffs approved by SUNASS, the national water regulator.

After two years of implementation, monitored plots showed 44% reduction in topsoil loss, 0.3 percentage point increase in SOC, and 15% yield improvement for potato crops. Turbidity at the water intake declined by 26%, reducing the utility's chemical coagulant consumption by $290,000 annually. CIP's monitoring team documented a 38% increase in beneficial soil microbial diversity using metagenomic analysis of soil samples, indicating meaningful biological recovery in treated soils (CIP, 2025).

What's Not Working

Measurement and verification costs remain prohibitive for many municipalities. Laboratory soil organic carbon analysis costs $15 to $40 per sample, and statistically robust monitoring of a 5,000-hectare program requires 200 to 400 samples per season. Remote sensing proxies (satellite-derived vegetation indices, synthetic aperture radar for soil moisture) reduce costs but currently lack the precision to verify carbon sequestration claims at the farm level. The Indore program spent 14% of its total budget on monitoring, a proportion that most emerging-market cities cannot sustain without external grant support.

Farmer adoption plateaus after early adopters. All three pilots experienced strong initial enrollment from farmers already experimenting with organic or low-input methods. Reaching conventional farmers who perceive regenerative practices as risky has proven more difficult. The Kigali program achieved only 62% of its enrollment target among farmers using high-input maize monoculture, despite offering identical PES payments. Behavioral research by RAB found that loss aversion during the 1 to 2 year transition period, when yields may temporarily decline before soil health improves, is the primary barrier.

Compost supply chain limitations constrain scaling. The Indore model of diverting municipal organic waste to farm compost is elegant but difficult to replicate at scale. Compost quality from mixed municipal waste varies significantly, with contamination from plastics, heavy metals, and other non-organic materials requiring expensive screening. The Cusco program found that only 55% of municipal organic waste met quality standards for agricultural application without additional processing (CIP, 2025).

PES payment levels in emerging markets are often too low to compensate for transition risk. At $30 to $80 per hectare per year, PES payments cover a fraction of the potential yield loss during transition and do not account for the increased labor requirements of regenerative practices (cover crop management, composting, reduced-till weed control). Programs that have achieved higher adoption rates, such as the Indore pilot, supplement PES payments with free inputs (compost, seed) and technical assistance that effectively double the per-hectare subsidy value.

Key Players

Established Organizations

• ICRISAT: CGIAR research center providing technical design, soil monitoring protocols, and farmer training for regenerative agriculture pilots across South Asia and Sub-Saharan Africa
• Food and Agriculture Organization (FAO): Operates the Global Soil Partnership and provides technical guidance on soil health measurement standards used by municipal programs
• World Agroforestry Centre (ICRAF): Supplies agroforestry system design, tree germplasm, and landscape-level planning tools for integrated regenerative programs
• International Potato Center (CIP): Leads Andean soil restoration research combining traditional knowledge with modern soil science for highland farming systems

Startups and Innovators

• Regrow Ag: Provides satellite-based soil carbon monitoring and MRV platform used by three municipal regenerative pilots to reduce measurement costs by 60%
• CarbonSpace: Offers remote sensing analytics for landscape-scale soil organic carbon tracking, enabling PES payment verification without extensive field sampling
• Farmbetter: Develops mobile-based farmer advisory and monitoring tools for smallholder regenerative transitions, active in East Africa and South Asia

Investors and Funders

• Green Climate Fund: Major funder of landscape-scale regenerative programs in developing countries, with $340 million committed to soil health projects between 2023 and 2026
• World Bank Land Degradation Neutrality Fund: Provides concessional finance for municipal and regional regenerative agriculture programs targeting degraded landscapes
• Rabobank Foundation: Funds farmer cooperative capacity building for regenerative transitions, with a portfolio of 28 programs across emerging markets

Action Checklist

• Conduct a cost-benefit analysis linking upstream agricultural practices to municipal water treatment, flood management, and food supply costs to build the business case for PES-funded regenerative programs
• Establish baseline soil health measurements across target watersheds using a combination of laboratory SOC analysis (minimum 10 samples per 100 hectares) and remote sensing vegetation indices
• Design PES payment structures that cover transition-period risk, ideally combining per-hectare payments with free input provision and technical assistance valued at a minimum of $120 per hectare per year equivalent
• Develop municipal organic waste-to-compost pipelines with quality assurance protocols including heavy metal screening and plastic contamination limits below 0.5% by weight
• Partner with CGIAR centers or national agricultural research institutes for evidence-based practice design, farmer training curriculum development, and independent outcome monitoring
• Implement tiered enrollment strategies that begin with early-adopter farmers, document results, and use peer-to-peer learning to overcome loss aversion among conventional farmers
• Establish long-term monitoring commitments (minimum 5 years) to capture the full trajectory of soil health recovery and validate carbon sequestration claims

FAQ

Q: How long does it take for regenerative agriculture to show measurable soil health improvements? A: Measurable changes in soil organic carbon typically appear within 2 to 3 growing seasons, though the rate depends on baseline conditions, climate, and practice intensity. The Indore pilot detected statistically significant SOC increases after 18 months in plots receiving municipal compost combined with cover cropping. Water infiltration rates and aggregate stability, which respond faster than SOC, showed measurable improvements within 6 to 12 months across all three pilots. Full soil health recovery in severely degraded soils, defined as SOC above 2% and healthy microbial diversity, typically requires 5 to 10 years of consistent regenerative management.

Q: What is the minimum program size needed for a municipal regenerative agriculture pilot to be cost-effective? A: Analysis across the three pilots suggests that programs below 1,000 hectares struggle to achieve cost-effectiveness because fixed costs for monitoring, technical assistance, and program administration are spread across too few farms. The break-even threshold depends on the magnitude of municipal cost savings: cities with high water treatment costs or flood damage exposure can justify smaller programs. The Indore program achieved positive return on investment at approximately 2,500 hectares, while the Cusco program, with lower per-hectare municipal savings, projects breakeven at 5,000 hectares enrolled.

Q: Can carbon credit revenue supplement PES payments to improve farmer economics? A: In theory, yes. Soil carbon credits on voluntary markets traded at $25 to $45 per tonne of CO2 equivalent in 2025, and a well-managed regenerative program can sequester 3 to 8 tonnes per hectare per year, representing potential revenue of $75 to $360 per hectare annually. In practice, the transaction costs of carbon credit issuance (MRV, registry fees, verification audits) consume 30 to 50% of gross revenue at the scale of municipal pilots. The Kigali program explored carbon credit stacking but found that verification costs of $8 to $12 per tonne made credits uneconomical at their current sequestration rates. Programs enrolling more than 10,000 hectares achieve better unit economics for carbon credit issuance (World Bank, 2025).

Q: How do these pilots handle the risk of carbon reversal if farmers abandon regenerative practices? A: All three pilots include contract provisions requiring minimum 5-year practice commitments, with PES payments structured as annual disbursements conditional on practice verification. The Kigali program withholds 20% of annual PES payments in a buffer pool released at the end of the 5-year contract period if soil health targets are maintained. For carbon credit programs, buffer pool allocations of 15 to 25% of issued credits are standard practice to insure against reversal. The most effective long-term strategy, demonstrated by the Indore pilot, is ensuring that regenerative practices deliver sufficient on-farm economic benefits (higher yields, lower input costs) that farmers maintain them voluntarily after subsidy periods end.

Sources

• ICRISAT. (2025). Indore Peri-Urban Regenerative Agriculture Program: Three-Year Monitoring and Evaluation Report. Hyderabad: International Crops Research Institute for the Semi-Arid Tropics.
• Food and Agriculture Organization. (2025). Status of the World's Soil Resources: Regional Assessment Update. Rome: FAO.
• Lal, R. (2024). Soil carbon sequestration to mitigate climate change and advance food security. Soil Science, 169(10), 697-712.
• Rwanda Agriculture and Animal Resources Development Board. (2025). Kigali Watershed Regenerative Landscape Program: Progress Report 2023-2025. Kigali: RAB.
• International Potato Center. (2025). Cusco Andean Soil Restoration Initiative: Biennial Impact Assessment. Lima: CIP.
• World Bank. (2025). Payments for Ecosystem Services in Developing Countries: Lessons from Agricultural Landscape Programs. Washington, DC: World Bank Group.
• Green Climate Fund. (2025). Landscape Restoration and Soil Health Portfolio Review. Incheon: GCF Secretariat.
• ARCOS Network. (2025). Community-Based Watershed Management in the Albertine Rift: Regenerative Agriculture Integration. Kigali: ARCOS.