
Ammonium Sulphate Scenario in India (2025): Agriculture & Alum Industries
1. Agriculture Sector
Ammonium sulphate (NH₄)₂SO₄ is widely used as a nitrogen and sulphur-based fertilizer in India. As of 2025, the demand and market dynamics for ammonium sulphate in Indian agriculture are influenced by several key factors:
Rising Demand for Sulphur-based Fertilizers: Due to sulphur deficiencies in Indian soils, ammonium sulphate remains a preferred fertilizer, particularly for oilseeds (mustard, soybean), pulses, and cash crops like sugarcane and cotton.
Government Policies: Subsidies and incentives for balanced fertilization promote ammonium sulphate usage alongside urea and DAP. The government’s push for customized fertilizers and micronutrient-rich formulations also boosts demand.
Domestic Production vs. Imports: India imports a significant amount of ammonium sulphate, primarily from China and Europe. However, domestic production is expected to increase due to investments in chemical plants and fertilizer manufacturing.
Price Volatility: Fluctuations in global sulphur and ammonia prices affect ammonium sulphate costs. However, it remains competitively priced compared to other nitrogenous fertilizers.
Sustainability & Efficiency: Farmers increasingly prefer ammonium sulphate due to its dual benefits of nitrogen and sulphur, improving crop yield and soil health.
2. Alum & Industrial Sector
Ammonium sulphate is also used in the production of alum (aluminium sulphate) for water treatment, paper manufacturing, and other industrial applications. The scenario for 2025 includes:
Water Treatment Demand: With stricter water quality regulations and increased urbanization, the demand for alum in municipal and industrial water treatment plants is rising, indirectly increasing ammonium sulphate consumption.
Paper & Textile Industries: The revival of the paper and textile industries post-pandemic has driven alum consumption, supporting the ammonium sulphate market.
Chemical Industry Growth: Ammonium sulphate is used in dyeing, pharmaceuticals, and chemical synthesis. Expansion in these sectors contributes to steady demand.
Environmental Concerns: Industries are exploring eco-friendly alternatives, but ammonium sulphate remains crucial due to its effectiveness in alum production.
Conclusion
In 2025, ammonium sulphate in India continues to play a crucial role in both agriculture and industrial sectors. The fertilizer industry sees steady growth due to soil nutrient deficiencies and government support, while the alum industry benefits from rising water treatment and industrial applications. However, price volatility and import dependence remain key challenges.
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