SMN : Soil Mineral Nitrogen.

  SMV [1] : Slow Moving Vehicle.

  SMV [2] : Standard Minute Value.

  SOLA : Specific Off-Label Approval.

  SOM : Soil Organic Matter.

  SOP [1] : Sulphate of Potash (Potassium Sulphate).

  SOP [2] : Standard Operating Procedure.

  SP : Soluble Powder, in water.

  SPPP : Synthetic Plant Protection Product.

  SQA : Scottish Qualifications Authority.

  SRN : Slow Release Nitrogen.

  SSC : Sector Skills Council.

  SSMG : Smooth Stalked Meadow Grass.

  STEL : Short-Term Exposure Limit.

  STEPPA : Subject, Scaling, Target identification, Emotion, Perception, Plan and pace, Adapt or act.

  STMA : Sports Turf Managers Association, which was rebranded as the SFMA in 2022.

  STP : Synthetic Turf Pitch.

  SuDS : Sustainable Drainage Systems.

  SWL : Safe Working Load.

  SWOT : Strengths, Weaknesses, Opportunities, and Threats.