EconomicsSource: The Hindu
ICAR Study Highlights Depleting Soil Organic Carbon Threatening Agriculture
Tuesday, 11 November 2025
Read Original ArticleKey Points
The ICAR study has brought to light the alarming decline in soil organic carbon levels across India, primarily due to unscientific fertilizer use and climate change. This issue is crucial for UPSC aspirants as it impacts agricultural sustainability, a key topic in GS Paper 3. Last Updated: 2025-11-11
Key Facts About Soil Organic Carbon Depletion
- Impact of Fertilizers and Climate Change: Unscientific fertilizer use and rising temperatures are major contributors to reduced soil organic carbon.
- Influence of Environmental Factors: Elevated regions tend to have higher organic carbon levels.
- Impact of Cropping Systems: Rice and pulse systems are more effective in retaining organic carbon.
- Correlation with Micronutrients: Low organic carbon levels lead to micronutrient deficiencies in soil.
- Reduced Soil Fertility & Productivity: Depletion affects crop quality and yield significantly.
- Climate Change Feedback Loop: Depleted soils release CO₂, exacerbating climate change.
- Increased Cost of Cultivation: Falling soil fertility increases dependency on fertilizers, raising costs.
India's Agricultural Sustainability Challenge
The depletion of soil organic carbon poses a significant threat to India's agricultural sustainability, impacting soil fertility and biodiversity. This challenge is intertwined with India's economic goals, as agriculture remains a critical sector for employment and GDP. The country must adopt sustainable practices to ensure long-term productivity and environmental health. Internationally, India ranks lower in sustainable agricultural practices compared to developed nations, highlighting the need for urgent reforms.
Related Government Schemes/Policies
- Soil Health Card Scheme: Aims to promote balanced fertilizer use and improve soil health.
- National Mission for Sustainable Agriculture: Focuses on climate-resilient farming practices.
- Pradhan Mantri Krishi Sinchayee Yojana: Enhances water use efficiency in agriculture.
UPSC Relevance
- GS Paper 3: Environment, Agriculture, and Climate Change
- Prelims Angle: Questions on soil health, fertilizer impact, and sustainable practices
- Mains Angle: Essays on agricultural sustainability, climate change impacts, and policy integration
FAQ Section
- What is soil organic carbon? Soil organic carbon is the carbon component of organic compounds in soil, crucial for maintaining soil health and fertility.
- Why is soil organic carbon important? It is vital for soil fertility, crop yield, and environmental health, influencing climate change through carbon sequestration.
- What are the key features of the ICAR study? The study highlights the decline in soil organic carbon due to unscientific fertilizer use and climate change, emphasizing the need for sustainable agricultural practices.
Detailed Coverage
- Impact of Fertilizers and Climate Change: Unscientific fertilizer use and rising temperatures reduce soil organic carbon.
- Influence of Environmental Factors: Higher organic carbon levels are found in elevated regions.
- Impact of Cropping Systems: Rice and pulse systems retain higher organic carbon.
- Correlation with Micronutrients: Low organic carbon leads to micronutrient deficiencies.
- Reduced Soil Fertility & Productivity: Depletion affects crop quality and yield.
- Climate Change Feedback Loop: Depleted soils release CO₂, worsening climate change.
- Increased Cost of Cultivation: Falling soil fertility raises fertilizer dependency and costs.
- Threat to Agricultural Sustainability: Input-driven models harm soil health.
- Loss of Biodiversity: Organic carbon depletion threatens soil biota.
- Sustainable Crop Management: Practices like zero tillage improve soil health.
- Balanced Fertilizer Use: Strengthening the Soil Health Card Scheme is crucial.
- Carbon-Sequestering Cropping Systems: Encourage cropping diversity and agroforestry.
- Carbon Credit Framework for Agriculture: Develop a framework for sustainable practices.
- Leveraging Technology: Use digital platforms for real-time agricultural advisories.
- Policy Integration: Focus on areas with low soil organic carbon content.
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