title: Library of Congress Classification:Class S -- Agriculture
text: # Library of Congress Classification:Class S -- Agriculture
  
  Class S: Agriculture is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class S.
  
  ## S - Agriculture (general)
  
      21-400.5....................................Documents and other collections
      403............................................Agricultural missions, voyages, etc.
      419-482.....................................History
      530-559.....................................Agricultural education
         539.5-542.3.....................................Research. Experimentation
         544-545.53.......................................Agricultural extension work
         548-548.6........................................Historic farms
         550-559...........................................Exhibitions. Fairs
      560-571.5..................................Farm economics. Farm management. Agricultural mathematics. Including production standards, record keeping, farmwork rates, marketing
      583-587.73.................................Agricultural chemistry. Agricultural chemicals
      588.4-589.6...............................Agricultural physics. Including radioisotopes in agriculture
      589.7.........................................Agricultural ecology (General)
      589.75-589.76............................Agriculture and the environment
      589.8-589.87..............................Plant growing media. Potting soils
      590-599.9..................................Soils. Soil science. Including soil surveys, soil chemistry, soil structure, soil-plant relationships
      600-600.7..................................Agricultural meteorology. Crops and climate
      602.5-604.37..............................Methods and systems of culture. Cropping systems. Including fallowing, rotation of crops, plowing
      604.5-604.64..............................Agricultural conservation
      604.8-621.5...............................Melioration: Improvement, reclamation, fertilization, irrigation, etc., of lands
         605.5...............................................Organic farming. Organiculture
         606-621.5........................................Special classes of lands and reclamation methods. Including woodlands, burning of lands, deserts, saline environments, moors
      622-627.....................................Soil conservation and protection
      631-667.....................................Fertilizers and improvement of the soil
      671-760.5..................................Farm machinery and farm engineering
      770-790.3..................................Agricultural structures. Farm buildings
      900-(972)...................................Conservation of natural resources. Including land conservation
  
  ## SB - Plant culture
  
      39............................................Horticultural voyages, etc.
      71-87.......................................History
      107-109...................................Economic botany
      109.7-111................................Methods for special areas. Including cold regions, dry farming, tropical agriculture
      112..........................................Irrigation farming
      113.2-118.46............................Seeds. Seed technology
      118.48-118.75..........................Nurseries. Nursery industry
      119-124...................................Propagation. Including breeding, selection, grafting, air layering
      125..........................................Training and pruning
      126..........................................Artificial light gardening
      126.5-126.57............................Hydroponics. Soilless agriculture
      127..........................................Forcing
      128..........................................Growth regulators
      129-130...................................Harvesting, curing, storage
      169-172.5................................Tree crops
      175-177...................................Food crops
      183-317...................................Field crops. Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
      317.5-319.864..........................Horticulture. Horticultural crops
      320-353.5................................Vegetables
      354-402...................................Fruit and fruit culture
         381-386.........................................Berries and small fruits
         387-399.........................................Grape culture. Viticulture
         401................................................Nuts
      403-450.87...............................Flowers and flower culture. Ornamental plants
         406.7-406.83..................................Plant propagation
         409-413.........................................Culture of individual plants
         414................................................Forcing
         414.6-417......................................Greenhouses and greenhouse culture
         418-418.4......................................Container gardening
         419-419.3......................................Indoor gardening and houseplants
         419.5.............................................Roof gardening. Balcony gardening
         421-439.8......................................Classes of plants. Including annuals, climbers, ferns, lawns, perennials, shrubs
         441-441.75.....................................Flower shows. Exhibitions
         442.5.............................................Care and preparation of cut flowers and ornamental plants for market
         442.8-443.4...................................Marketing. Cut flower industry. Florists
         446-446.6......................................Horticultural service industry
         447................................................Preservation and reproduction of flowers, fruits, etc.
         447.5.............................................Bonkei. Tray landscapes
         449-450.87.....................................Flower arrangement and decoration
      450.9-467.8.............................Gardens and gardening
      469-(476.4)..............................Landscape gardening. Landscape architecture
      481-486...................................Parks and public reservations. Including theory, management, history
      599-990.5................................Pests and diseases
         608................................................Individual or types of plants or trees
         610-615.........................................Weeds, parasitic plants, etc.
         617-618.........................................Poisonous plants
         621-795.........................................Plant pathology
         818-945.........................................Economic entomology
         950-990.5......................................Pest control and treatment of diseases. Plant protection
            950.9-970.4.........................................Pesticides
            973-973.5............................................Soil disinfection
            974-978...............................................Organic plant protection. Biological control
            979.5-985............................................Inspection. Quarantine
      992-998...................................Economic zoology applied to crops. Agricultural zoology. Including animals injurious and beneficial to plants
  
  ## SD - Forestry
  
      11-115.....................................Documents
      119..........................................Voyages, etc.
      131-247.5................................History of forestry. Forest conditions
      250-363.3................................Forestry education
      388..........................................Forestry machinery and engineering
      388.5.......................................Tools and implements
      389..........................................Forest roads
      390-390.43...............................Forest soils
      390.5-390.7.............................Forest meteorology. Forest microclimatology
      391-410.9................................Sylviculture
      411-428...................................Conservation and protection. Including forest influences, damage by elements, fires, forest reserves
      430-(559).................................Exploitation and utilization. Including timber trees, fuelwood, logging, transportation, valuation
      561-669.5................................Administration. Policy
  
  ## SF - Animal culture
  
      41-55.......................................History
      84-84.64..................................Economic zoology
      84.82-85.6...............................Rangelands. Range management. Grazing
      87............................................Acclimatization
      89............................................Transportation
      91............................................Housing and environmental control
      92............................................Equipment and supplies
      94.5-99....................................Feeds and feeding. Animal nutrition
      101-103.5.................................Brands and branding, and other means of identifying
      105-109....................................Breeding and breeds
      111-113....................................Cost, yield, and profit. Accounting
      114-121....................................Exhibitions
      170-180....................................Working animals
      191-275....................................Cattle
         221-250..........................................Dairying
         250.5-275.......................................Dairy processing. Dairy products
      277-360.4.................................Horses
         294.2-297.......................................Horse sports. Horse shows
         304.5-307.......................................Driving
         308.5-310.5....................................Horsemanship. Riding
         311-312..........................................Draft horses
         315-315.5.......................................Ponies
         321-359.7.......................................Racing
         360-360.4.......................................Feral horses. Wild horses
      361-361.73...............................Donkeys
      362..........................................Mules
      371-379....................................Sheep. Wool
      380-388....................................Goats
      391-397.83...............................Swine
      402-405....................................Fur-bearing animals
      405.5-407.................................Laboratory animals
      408-408.6.................................Zoo animals
      409..........................................Small animal culture
      411-459....................................Pets
         421-440.2.......................................Dogs. Dog racing
         441-450..........................................Cats
         451-455..........................................Rabbits and hares
         456-458.83.....................................Fishes. Aquariums
         459................................................Other animals
      461-473....................................Birds. Cage birds
      481-507....................................Poultry. Eggs
      508-(510.6)..............................Game birds
      511-511.5.................................Ostrich
      512-513....................................Ornamental birds
      515-515.5.................................Reptiles
      518..........................................Insect rearing
      521-539.8.................................Bee culture
      541-560....................................Sericulture. Silk culture
      561..........................................Lac-insects
      600-1100..................................Veterinary medicine
         756.5-769.5....................................Special preclinical sciences. Including veterinary genetics, ethology, anatomy, physiology, embryology, pathology
         780.2-780.7....................................Veterinary microbiology, bacteriology, virology, mycology
         780.9.............................................Veterinary epidemiology. Epizootiology
         781-809..........................................Communicable diseases of animals (General)
         810................................................Veterinary parasitology
         810.5-810.7....................................Predatory animals and their control
         811-909..........................................Veterinary medicine of special organs, regions, and systems
         910................................................Other diseases and conditions
         910.5.............................................Veterinary orthopedics
         911-914.4.......................................Veterinary surgery
            914.3-914.4..........................................Veterinary traumatology. Veterinary emergencies
         914.5.............................................Veterinary acupuncture
         915-919.5.......................................Veterinary pharmacology
         925................................................Veterinary physical medicine
         951-997.5.......................................Diseases of special classes of animals
  
  ## SH - Aquaculture. Fishery. Angling
  
      20.3-191..................................Aquaculture
         33-134.6........................................By region or country
         138................................................Mariculture
         151-179.........................................Fish culture
            171-179...............................................Diseases and adverse factors
         185-191.........................................Frogs, leeches, etc.
      201-399...................................Fisheries
         213-216.55....................................By oceans and seas
         219-321.........................................By region or country
         327.5-327.7...................................Fishery resources. Fishery conservation
         328-329.........................................Fishery management. Fishery policy
         334................................................Economic aspects. Finance
         334.5-334.7...................................Fishery technology
         334.9-336.5...................................Fishery processing
         337................................................Packing, transportation, and storage
         337.5.............................................Fishing port facilities
         343.2-343.3...................................Fishery oceanography. Fishery meteorology
         343.4.............................................Fishery research vessels
         343.5.............................................Exploratory fishing
         343.8.............................................Navigation
         343.9.............................................Safety measures
         344-344.8......................................Methods and gear. Catching of fish
         346-351.........................................Fishery for individual species
         360-363.........................................Seal fisheries. Fur sealing
         364................................................Sea otter
         365-380.92....................................Shellfish fisheries. Shellfish culture
         381-385.........................................Whaling
         387................................................Porpoises. Dolphins
         388.7-391.5...................................Algae culture
         393................................................Seagrasses
         396................................................Sponge fisheries
      400-400.8................................Seafood gathering
      401-691...................................Angling. Including tackle, casting, methods of angling, angling for special kinds of fish
  
  ## SK - Hunting sports
  
      37-39.5....................................Shooting
      40-268.....................................By country
      281-293...................................Special methods and types of hunting. Including bolos, game calling, tracking, trapping, dressing
         284-287.........................................Fox hunting
         291-292.........................................Coursing
         293................................................Ferreting
      295-305...................................Big game
      311-335...................................Bird hunting. Fowling
      336..........................................Varmint hunting (General)
      337..........................................Predator hunting
      341..........................................Other game
      351-579...................................Wildlife management. Game protection. Including annual reports of game commissioners
      590-593...................................Wild animal trade
      650-664...................................Wildlife-related recreation
  