Q91: Following are the major sources of feedstock for production of... - Soil Fertility and Fertilizer Use - ICAR AIEEA PG 2024 - Agronomy | Agrigyan

In the Indian nitrogenous fertilizer industry, ammonia synthesis feedstock consumption follows the ranking:

• Natural Gas (B): Over 80-85% of total ammonia/urea capacity (most energy-efficient and dominant).
• Naphtha (A): Historically second largest share (~10-12%), though progressively converted to gas.
• Coal or Coke (C): Small share (e.g., historical plants at Talcher and Ramagundam).
• Electrolysis of water (D): Minimal historical/experimental share (used initially at Nangal before modernization).