#soil microbiology

• Ammonification — The biological and chemical process of decomposing nitrogenous organic substances (such as proteins, amino acids, or urea from plant and animal residues) by soil microorganisms (ammonifying bacteria and fungi), resulting in the release of nitrogen as ammonia or ammonium ions. This stage is fundamental within the natural nitrogen cycle, transforming complex compounds into mineral forms accessible to plants.
• Azotobacterial — Pertaining to the bacterium genus Azotobacter, belonging to it, or produced by the metabolic activity of these microorganisms; often used to describe biological preparations, laboratory cultures, or non-symbiotic nitrogen-fixing processes in the soil.
• Azotophilic — Developing optimally in nitrogen-rich environments or showing a pronounced biological affinity for nitrogenous compounds. In botany and microbiology, the term describes organisms (bacteria, fungi, or nitrophilous plants) whose structural metabolic processes and multiplication rates are directly stimulated by a high concentration of available nitrogen in the substrate.