Subclass SA: General agriculture
General agriculture covers topics in common to all forms of agriculture, including its history, economics, machinery and science.
Subclass SB: Plant culture
Plant culture is the cultivation of plants for food and other products.
Forestry is the art of managing forests and other woodlands.
Subclass SF: Animal culture
Subclass SH: Aquaculture and fisheries
Aquaculture and fisheries covers the farming of aquatic life and the its harvesting, domesticated and wild. This covers not just fish but molluscs, crustaceans, see-weed etc, in both fresh and salt water.
Angling is the method of fishing by means of a fish hook, usually combined with a line and a rod.
Subclass SK: Hunting sports
Hunting sports covers topics such as shooting, big game hunting, fox hunting, coursing and fowling. It also covers gamekeeping, wildlife management and the wild-animal trade.