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Biochar: Modernizing Indian Agriculture with Ancient Wisdom

As biochar production scales, India has the potential to play a pivotal role in the global biochar market, contributing to both national food security

By Shruti Verma
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AI generated image of biochar usage in India

In India, where agriculture plays a critical role in the economy, the demand for sustainable agricultural practices is increasing, positioning biochar as a promising solution for both environmental and productivity challenges. As Indian farmers increasingly integrate biochar into their farming practices, the country is witnessing the powerful intersection of ancient knowledge and cutting-edge innovation.

The history of biochar dates back to ancient Amazonian farming practices, where indigenous peoples created ‘Terra Preta’ or dark earth soils by incorporating charcoal into the soil. Indian farmers too, since aeons, have utilized biochar in practices like slash-and-burn agriculture, still seen in North-eastern parts. This charcoal, produced by pyrolysis (burning organic material in low oxygen), increased soil fertility and retained nutrients and moisture. These soils, still productive today, demonstrated the long-lasting benefits of carbon sequestration.

Modern biochar research began in the 20th century, highlighting its potential for sustainable agriculture, carbon capture, and climate change mitigation. Today, biochar production methods have advanced, promoting global environmental benefits. Modern technologies build upon this age-old practice by introducing controlled pyrolysis techniques, which retain more carbon and produce consistent results. This synergy between ancient wisdom and modern technology makes biochar an integral part of India’s agricultural future primarily because of:

  1. Soil Fertility Enhancement: It improves soil structure, aeration, and water retention, helping plants access nutrients more effectively.
  2. Carbon Sequestration: It locks carbon into the soil for centuries, reducing atmospheric carbon dioxide and combating climate change.
  3. Reduced Need for Fertilizers: It enhances nutrient availability, reducing the need for chemical fertilizers, lowering costs for farmers.
  4. Increased Crop Yields: Biochar’s water retention and nutrient-holding capabilities contribute to better crop productivity.
  5. Pollution Mitigation: It helps to reduce soil contamination by adsorbing harmful chemicals.
Image Source: Sciencedirect.com, Method for producing biochar

Market Size, Projected Growth and Adoption Among Indian Farmers

The biochar market in India is poised for rapid growth due to its significant potential in enhancing soil fertility, carbon sequestration, and combating climate change. It is widely regarded as a solution for climate change mitigation and soil productivity improvement due to its ability to act as a long-term carbon sink by storing recalcitrant carbon in soils. This eco-friendly product not only enhances soil fertility but also sequesters carbon, making it a sustainable solution to modern agricultural challenges.

Read More: Creative Street Theater Drives No-Burn Awareness at Ludhiana Kisan Mela

In regions like Kerala, Maharashtra, and Tamil Nadu, biochar is gaining popularity among farmers as a natural amendment that boosts soil health. Farmers report improved water retention, increased crop productivity, and enhanced soil fertility. In Madhya Pradesh, for instance, small-scale farmers using biochar have observed a 20-30% increase in crop yields. These success stories underline its potential as a cost-effective, sustainable solution for India’s predominantly smallholder farming system.

Unlike natural decomposition, where 85-95% of plant carbon returns to the atmosphere, biochar production captures around 50% of biomass carbon permanently, making it a carbon-negative process. This helps reduce carbon emissions and improves soil fertility. A study by researchers at IIT Delhi estimated that biochar application could sequester approximately 376.11 megatonnes of carbon dioxide equivalent in Indian soils, potentially reducing 41.41-63.26% of agricultural emissions. Additionally, converting 517.82 MT of crop residues into charred organic matter and applying it at 20 tonnes per hectare could sequester 21 MT of carbon and improve crop yields, reducing soil mineralization and saving essential nutrients like nitrogen and phosphorus annually.

As of 2023, the Indian biochar market is still emerging, but its growth trajectory is promising. The global biochar market was valued at approximately $1.3 billion in 2022 and is expected to grow at a compound annual growth rate (CAGR) of 13.2% from 2023 to 2030, according to various industry reports. The Indian market is projected to grow at a similar pace, driven by increasing agricultural demand, government initiatives, and rising environmental awareness.

Key Growth Drivers in India
  1. Agricultural Productivity: With 60% of India’s population dependent on agriculture, the need to improve soil fertility and crop productivity is critical. When added to the soil, it increases its water retention capacity, nutrient availability, and microbial activity, resulting in higher crop yields. Studies suggest that biochar can improve crop productivity by 10-20%, which is crucial in boosting food security.
  2. Waste Management and Circular Economy: India generates 500 million tons of crop residue annually, a large portion of which is burned, contributing to air pollution. Biochar production from agricultural waste offers a sustainable solution to this issue, reducing crop burning and transforming waste into a valuable agricultural input. Moreover, it can also be produced from municipal solid waste, forest residues, and industrial by-products, further enhancing its role in waste management.
  3. Carbon Sequestration and Climate Mitigation: Biochar has a significant potential to sequester carbon in soils for hundreds to thousands of years, making it a crucial tool in the fight against climate change. India, as a signatory to the Paris Agreement, is committed to reducing its carbon emissions, and could play a vital role in achieving these goals. Globally, biochar is estimated to have the potential to offset 12% of global greenhouse gas emissions.
  4. Government Initiatives: The Indian government has been promoting biochar through various sustainability initiatives, including the National Mission on Sustainable Agriculture (NMSA), which encourages farmers to adopt it as part of climate-smart agriculture practices. Additionally, it is gaining attention in government discussions about increasing soil organic matter and reducing dependence on chemical fertilizers.
  5. Technological Advancements and Innovation: The emergence of startups and research institutions in India focusing on biochar production technologies is also propelling the market forward. Few companies like Anulekh Agrotech, Samuchit Enviro Tech, MD Woods, and ARSTA Eco are pioneering technologies that make biochar production more efficient and accessible. These innovations are helping scale biochar production from small pilot projects to larger, commercial-scale operations.

Impact on Agrotech Sector

Biochar’s integration into the agrotech sector aligns with the broader goals of precision farming and sustainable agriculture. Here are some ways it is impacting the sector:

  1. Soil Health and Fertility: It improves soil structure, enhances nutrient retention, and promotes microbial activity, leading to healthier soils and increased agricultural productivity. It can also be used in conjunction with other technologies like soil health cards and drone-based soil monitoring, helping farmers manage soil conditions more effectively.
  2. Water Efficiency: In water-scarce regions of India, biochar is a boon for water conservation. Studies show that it can improve the water-holding capacity of soils by up to 30%, reducing irrigation needs and helping farmers adapt to climate-induced water shortages.
  3. Integration with AgriTech Startups: Indian agrotech startups, such as DeHaat and Ninjacart, are exploring the inclusion of biochar in their product portfolios. These platforms, which provide advisory, market linkages, and input solutions to farmers, could significantly boost biochar adoption by educating farmers on its benefits and integrating it into digital platforms for wider accessibility.
  4. Global Impact and Export Potential: India, as one of the largest agricultural economies, has the potential to become a major producer and exporter of biochar. As global demand for sustainable agricultural inputs grows, Indian biochar producers could expand their market beyond national borders, contributing to the $3.1 billion global biochar market projected by 2028.

Challenges and Barriers: Despite the promising growth potential, several challenges remain:

  1. High Initial Costs: The cost of biochar production is relatively high, which can deter small-scale farmers from adopting it, especially in rural areas with limited access to resources.
  2. Lack of Awareness: While biochar is widely studied in research circles, awareness among Indian farmers is still limited. Greater outreach and education are needed to demonstrate its benefits.
  3. Policy and Incentives: Although biochar is recognized for its benefits, a comprehensive policy framework and incentives for its adoption are still lacking. Clear guidelines and financial support from the government could help accelerate biochar production and usage across the country.

Biochar as a Solution for Residue Burning and Air Pollution

Biochar can play a transformative role in curbing the harmful practice of residue burning, especially in regions like Punjab, Haryana, and Uttar Pradesh, where rice and wheat stubble burning is prevalent. By converting crop residues into biochar through pyrolysis, farmers can avoid burning stubble, which significantly reduces the emission of harmful gases like Carbon dioxide (CO2), Methane (CH4), and Nitrogen oxides (NOx). This process also preserves vital nutrients, improving soil fertility and enhancing carbon sequestration, thus mitigating air pollution and promoting sustainable agriculture.

Studies show that biochar application can retain essential nutrients like nitrogen, phosphorus, and potassium that are typically lost during open-field burning, while addressing severe air quality issues in North India. This solution can also enhance soil’s water retention, reduce soil degradation, and improve crop yields, making biochar a promising alternative to open-field stubble burning and contributing to better public health.

Biochar innovation in India is rapidly evolving, addressing environmental challenges and enhancing agricultural productivity. Here are some key initiatives:

  1. Varaha’s Project: Focused in Gujarat and Rajasthan, this project uses advanced technology to convert the invasive Prosopis juliflora tree into biochar. It improves soil health, sequesters carbon, and restores ecosystems.
  2. India BioChar and BioResources Network: This collaborative platform focuses on reducing greenhouse gas emissions by converting farm residues into biochar, simultaneously improving farmers’ livelihoods.
  3. Artisanal Biochar Project: A project estimating an annual emission reduction by emphasizing traditional biochar production techniques.
  4. Cotton Stalk Biochar Project in South India: Centered on regenerative agriculture, this initiative uses cotton stalks to produce biochar, enhancing soil fertility and reducing waste.

The Future of Biochar in India

As India strives to modernize its agriculture while addressing pressing environmental challenges, biochar presents an exciting solution. Through the combined efforts of farmers, startups, and policymakers, it has the potential to revolutionize India’s agricultural landscape, improving productivity, sustainability, and climate resilience. While challenges remain, the future of charred organic matter in India looks promising, heralding a new era for both traditional farming practices and modern agriculture.

Biochar’s ability to improve soil health, enhance agricultural productivity, and sequester carbon makes it a valuable tool in India’s quest for sustainable development. With growing interest from startups, government bodies, and international investors, the biochar sector is on the cusp of becoming a significant player in India’s green economy. The Indian biochar market, though in its infancy, is poised for significant growth, driven by the country’s need for sustainable agricultural practices, waste management solutions, and climate change mitigation.

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