While crop production is on the rise, there is a less well-known issue lurking beneath it all. The soil that makes crops possible is deteriorating at a rapid pace that farmers are less aware of. Soil health does not attract publicity in the same way as a great or disastrous monsoon does. However, it may be more important than those events, as it decides whether this land, which today grows food for over a billion people, will be able to keep doing it in future. This blog explains what soil health is, why it is deteriorating in India, and what sustainable farming techniques can help improve the situation.
What Is Soil Health, and Why Does It Matter More Than Yield Alone?
Soil health refers to the soil’s capacity to function as a living ecosystem; sustaining plant growth, cycling nutrients, retaining water, and supporting the microbial life that makes all of that possible. It’s a broader concept than simple fertility. A soil can produce a decent yield this season while still losing the underlying biological health that determines whether it can do the same next season or the one after.
The clearest indicator of soil health is Soil Organic Carbon (SOC); a measure of the organic matter present in soil. SOC sustains microbial activity, and through that activity, plants absorb and retain nutrients effectively. When SOC declines, yields can remain deceptively stable for a period even as the soil’s underlying biological functioning quietly weakens; its ability to retain moisture, recycle nutrients, and sustain long-term fertility all deteriorate well before that decline becomes visible in a season’s harvest.
The Scale of India’s Soil Health Crisis
What the Data Actually Shows
The numbers here are stark. Soil Organic Carbon in Indian soils fell from around 1% in the 1950s to between 0.3% and 0.4% across most agricultural regions today, well below the 1-1.5% threshold which is generally considered the minimum for healthy soil. A large-scale ICAR study analysing over 254,000 soil samples across 620 districts between 2017 and 2023 confirmed that this decline is widespread, not confined to a handful of regions, with states practicing intensive cereal cultivation and frequent tillage showing some of the fastest rates of loss.
The nutrient picture is equally concerning. A Centre for Science and Environment assessment based on Soil Health Card data found that 64% of tested soil samples were low in nitrogen, and 48.5% were low in organic carbon. Separately, official assessments show that less than 5% of Indian soils have adequate nitrogen levels, and only about 20% contain sufficient organic carbon. Micronutrient deficiencies — zinc, boron, iron are widespread on top of this, further reducing both crop quality and nutritional value.
What’s Actually Driving This Decline
The primary driver is a badly skewed fertiliser subsidy system. India’s fertilizer policy has historically pushed for increased application of urea (nitrogen) and neglected balanced supply of nutrients, and Economic Survey 2025-26 confirms the worsening of this imbalance in the recent years. The result has been progressive saturation of soil with nitrogen, while phosphorus, potassium, and organic materials remained under-replenished, which leads to deterioration of soil structure, despite the increased application of fertilizers by farmers in general. Intensive monocropping compounds the problem.
Continuously growing the same crop, particularly water- and input-intensive ones like rice and sugarcane, depletes specific nutrients faster than natural or amended replenishment can restore them, while reducing the soil’s physical porosity and structural stability over time. Land degradation from erosion, salinity, and deforestation adds a further layer roughly 29-30% of India’s total geographical area is currently classified as degraded, and this figure has been climbing rather than stabilising.
Why Soil Health and Sustainable Agriculture Are Inseparable
The Water Connection Nobody Talks About
Soil organic carbon isn’t just about fertility; it’s directly tied to water retention capacity, which matters enormously in a country facing increasingly erratic rainfall. Research shows that a 1% increase in SOC can raise an acre’s water-holding capacity by up to 25,000 gallons. In practical terms, healthier soil means a farm can survive a longer dry spell without irrigation, and absorb heavy rainfall without excessive runoff both of which are becoming more frequent, not less, as climate volatility increases.
The Food Security and Nutrition Link
Here’s the contradiction sitting at the center of India’s agricultural story: production has risen even as the soil sustaining that production weakens. Yet this hasn’t translated into nutritional security the 2025 State of Food Security and Nutrition report found that 18.7% of Indian children under five are affected by wasting, while anaemia affects more than half of women aged 15-49. Degraded soil producing nutrient-poor crops is increasingly understood as one contributing factor in this gap between food quantity and actual nutritional quality.
The Climate Angle
Healthy soil functions as a genuine carbon sink. Indian soils are estimated to have the capacity to sequester 6-7 teragrams of carbon annually if managed well, meaning soil health isn’t just an agricultural concern, it’s a measurable piece of India’s broader climate mitigation potential, currently being left largely on the table.
What Sustainable Agriculture Practices Are Actually Working
Community Managed Natural Farming
Models like Community Managed Natural Farming (CMNF) have shown genuine promise in reversing soil degradation while reducing farmer costs simultaneously; cutting input costs to near zero, restoring soil organic matter over successive seasons, and producing chemical-free crops that often fetch a premium in urban markets. This model works specifically because it addresses the root cause (nutrient and chemical imbalance) rather than treating a symptom.
Balanced Nutrient Management and Soil Testing
The Soil Health Card scheme has tested over 1.3 crore soil samples in 2023-25 alone, giving individual farmers, for the first time, actual data on their land’s specific nutrient status rather than relying on habit or guesswork. But testing alone doesn’t restore soil health; it has to be paired with farmers actually understanding and acting on crop-specific fertiliser recommendations, shifting away from blanket urea application toward balanced nitrogen-phosphorus-potassium use suited to their specific soil.
Reduced Tillage and Organic Matter Replenishment
Reducing tillage frequency, incorporating crop residue back into soil rather than burning it, and rotating crops rather than continuous monocropping all directly address the mechanisms driving SOC decline. These aren’t new techniques; they’re often a return to practices that sustained Indian soil productivity for generations before intensive chemical-input farming became the default.
Where Vayam’s Work Fits Into This Picture
Vayam’s approach to sustainable agriculture reflects the same principle borne out by the data above that soil health can’t be restored through a single intervention in isolation. Through Vayam Bhoomi, the organisation pairs practical tools like soil health testing with direct, on-ground farmer engagement, helping smallholders actually interpret what a soil report means for their next season rather than simply handing over a document.
For a broader look at how sustainable, community-led models are being applied across rural livelihoods more generally, this piece on sustainable rural livelihoods in India covers related models including natural farming approaches that directly support soil health restoration.
Frequently Asked Questions
What is soil health and why is it declining in India?
Soil health refers to a soil’s ability to sustain plant growth, retain water, and support microbial life effectively. In India, it’s declining primarily due to imbalanced fertiliser use (excessive urea, under-application of phosphorus and potassium), intensive monocropping, and land degradation, with Soil Organic Carbon levels falling from around 1% in the 1950s to just 0.3-0.4% today in most agricultural regions.
What is Soil Organic Carbon (SOC) and why does it matter?
SOC measures the organic matter content in soil and is considered the clearest indicator of soil health. It sustains microbial activity, supports nutrient cycling, and directly affects water retention — a 1% increase in SOC can raise an acre’s water-holding capacity by up to 25,000 gallons.
How does soil health affect food security in India?
Even as crop production rises nationally, degraded soil increasingly produces nutrient-poor crops, contributing to persistent nutritional deficiencies. This is reflected in ongoing high rates of child wasting and anaemia among women despite rising overall food output.
What can farmers do to improve soil health sustainably?
Practical steps include getting soil tested through the Soil Health Card scheme and following crop-specific fertiliser recommendations, reducing tillage frequency, incorporating crop residue instead of burning it, rotating crops rather than continuous monocropping, and adopting natural farming methods that restore organic matter over time.
How is Vayam involved in improving soil health in rural India?
Through Vayam Bhoomi, Vayam combines soil health testing with direct, sustained engagement with farming communities; helping smallholders understand their soil data and apply it to real farming decisions, rather than treating testing as a standalone, one-time activity.
Conclusion
India’s soil health crisis doesn’t announce itself the way a drought or flood does; it accumulates quietly, season after season, until productivity that once seemed guaranteed starts to falter. Reversing it requires treating soil health and sustainable agriculture as the same problem, not two separate conversations: balanced nutrient management, reduced chemical dependency, and consistent on-ground support that helps farmers translate soil data into real decisions. The data makes clear this shift can’t wait much longer but it also makes clear that the tools and models to reverse it, from Soil Health Cards to natural farming, already exist and are already working where they’ve been properly applied.