Geographical Distribution and Soil Properties
Derived from the weathering of volcanic basalt rocks of the Deccan Plateau, black soil covers extensive tracts across Maharashtra, Madhya Pradesh, Gujarat, Karnataka, and Telangana.
It is classified agronomically as Vertisols, characterized by high concentrations of montmorillonite clay minerals.
- High Moisture Retention: Swells and becomes sticky when wet, retaining moisture deep into winter and rabi cropping seasons
- Self-Ploughing Nature: Develops deep fissures and cracks upon drying, facilitating aeration and natural surface crumb circulation
- Mineral Profile: Naturally rich in calcium, magnesium, carbonates, and potash, though typically deficient in nitrogen and phosphorus
Primary Cash and Food Crops Grown in Black Soil
Because black soil retains seasonal monsoon moisture, it facilitates both kharif and rabi crop cycles across dryland farming regions.
Cotton is the iconic crop grown on this soil, earning it the widespread moniker 'black cotton soil'.
- Cotton: Deep taproots exploit deep subsoil moisture reserves across Maharashtra and Gujarat
- Soybean: The cornerstone of Madhya Pradesh and Marathwada oilseed belts on medium to deep black soils
- Sugarcane: Cultivated extensively in irrigated Vertisols of western Maharashtra and northern Karnataka
- Wheat and Gram (Chickpea): Prime rabi crops grown on residual soil moisture after monsoon withdrawal
- Jowar and Pulses: Pigeon pea (tur) and sorghum intercropping suited to Vertisol moisture dynamics
Agronomic Management and Drainage Challenges
Due to high clay density, black soils are susceptible to waterlogging during heavy monsoon rains and surface crusting under drought.
Adopting broad bed and furrow (BBF) systems and balanced fertilizer application mitigates drainage bottlenecks and maximizes crop yield.
- Drainage Systems: Construct broad bed and furrow (BBF) ridges to divert excess runoff and prevent root rot
- Nutrient Replenishment: Apply balanced nitrogenous fertilizers and soluble phosphorus to overcome inherent deficiencies
- Organic Matter: Incorporate farmyard manure (FYM) and green manuring (dhaincha) to enhance soil porosity and workability
Official source
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Indian Council of Agricultural Research ↗Related on KisanPe
Common questions
Why is black soil called 'black cotton soil'?
It is referred to as black cotton soil because its clay texture and moisture-retention properties are suited for growing cotton.
Which Indian states have extensive black soil tracts?
Maharashtra, Madhya Pradesh, Gujarat, Karnataka, Andhra Pradesh, and Telangana contain the largest expanses of Deccan black soil.
What nutrient is typically deficient in black soils?
While rich in potash, calcium, and magnesium, black soils are typically deficient in available nitrogen, phosphorus, and organic matter.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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