Ammonia synthesis is the process of producing ammonia (NH₃) from nitrogen (N₂) and hydrogen (H₂) gases. This reaction typically occurs under high pressure and temperature, using an iron catalyst to speed up the reaction. The most common method for ammonia synthesis is the Haber-Bosch process, which combines these gases in a 1:3 ratio. Ammonia is a crucial compound in agriculture, primarily used in fertilizers to enhance crop growth. The synthesis of ammonia is vital for food production, as it provides essential nutrients to plants. Additionally, ammonia has applications in various industries, including refrigeration and cleaning products.