Where an acronym is used for an organisation then this will appear in the Organisations section.

  ROLO : Register of Land Based Operatives.

  ROPS : Roll-Over Protective Structures.

  RPE : Respiratory Protective Equipment.

  RPR : Regenerating Perennial Ryegrass.

  RQF : Regulated Qualifications Framework, for England and Northern Ireland.

  RTU : Ready To Use.

  RTV : Rough Terrain Vehicle.

  SALTEX : Sports Amenities Landscaping Trade Exhibition. A brand name of the GMA for its annual exhibition. Link to web site

  SAQ [1] : Short Answer Question.

  SAQ [2] : Self-Assessment Question.

  SAR [1] : Sodium Adsorption Ratio.

  SAVD : Subsurface Aeration and Vacuum Drainage system.

  SBI : Sterol Biosynthesis Inhibitor, a fungicide group, which is also referred to as DMI.

  SBR : Styrene Butadiene Rubber.

  SC : Suspension Concentrate.

  SCAMPER : Substitute; Combine; Adapt; Modify (also Magnify and Minify); Put to another use; Eliminate; Reverse (also Rearrange).

  SCQF : Scottish Credit and Qualifications Framework.

  SCRF : Strong Creeping Red Fescue and also Slender Creeping Red Fescue.

  SDHI : Succinate DeHydrogenase Inhibitors, a fungicide group.

  SFR : Superficial Fairy Ring.