- N - Agriculture
- N.01 - Agriculture, general, soil/Agrarian structure top
- N.01.01 - Agriculture, general
- Agrarian law
- Agricultural aid
- Agricultural budgets
- Agricultural credit
- Agricultural history
- Agricultural markets
- Agricultural prices
- Agricultural reforms
- Agricultural surpluses
- Agricultural trade
- Agricultural training
- Agricultural work
- Agriculture
- Agriculture policy
- Agroforestry
- Agroindustry
- Ecological farming
- Extensive farming
- Farms
- Food and nutrition policy
- Intensive farming
- Landscape protection/conservation
- Ministers of agriculture
- Ministries of agriculture
- Rural development
- N.01.02 - Soil/Vegetation
- Agricultural areas
- Arable land
- Cleared woodland
- Cultivated landscapes
- Fallow ground
- Fertilization and fertilizers
- Forest areas
- Forests
- Land (factor of production)
- Land drainage
- Land use
- Natural landscapes
- Pastures
- Soil destruction or contamination
- Soil erosion
- Soil improvement
- Soil quality
- Soil sciences
- Steppes
- Tropical rain forests
- Vegetation
- Vegetation zones
- N.01.03 - Agrarian structure/Rural areas
- Agrarian societies
- Agrarian structures
- Agricultural workers
- Cooperative farmers
- Distribution/redistribution of land
- Farmers
- Land development
- Land law
- Land policy
- Land tenure
- Landless/tenant farmers
- Landowners
- Large estates
- Large landowners
- Legal framework for agrarian structure
- Real estate speculation
- Resettlement
- Rural areas
- Rural development
- Rural population
- Rural-urban migration
- Rural-urban relationships
- Seasonal work
- Settlement process
- Settlements
- Settlers
- Small farmers
- Smallholdings
- Tenancies
- Types of settlement
- Urban-rural migration
- Villages
- N.01.04 - Agrarian institutions
- Agricultural banks
- Agricultural cooperatives
- Marketing cooperatives
- Ministers of agriculture
- Ministries of agriculture
- Producer cooperatives
- N.02 - Field farming top
- Agricultural areas
- Arable farming
- Arable land
- Crop rotation
- Cultivation methods
- Fertilization and fertilizers
- Fruit farming and horticulture
- Harvests
- Irrigation farming
- Monocultures
- Nomadic economies
- Pastoral economy
- Pastures
- Plant cultivation
- Plant products
- Plantation economies
- Rice cultivation
- Seeds
- Slash and burn cultivation
- Subsistence economies
- Viticulture
- N.03 - Animal farming/Live stock farming top
- Animal breeding
- Animal feed and fodder plants
- Animal feed control
- Animal husbandry
- Apiculture
- Domestic animals
- Livestock
- Livestock farming
- Pastoral economy
- Poultry
- Transhumance
- N.04 - Forestry top
- Cleared woodland
- Deforestation
- Forest conservation and afforestation
- Forest damage
- Forestry
- Forestry engineering
- Forests
- Hunting
- Landscape protection/conservation
- Tree population
- Tropical rain forests
- Tropical timber
- Wood
- Wood processing/woodworking industry
- Wood products
- N.05 - Fishery top
- Aquaculture
- Coastal fishing
- Deep sea fishing
- Fish
- Fish products
- Fish trade
- Fisheries
- Fishermen
- Fishing fleets
- Fishing grounds
- Fishing industry
- Fishing rights
- Fishing vessels and equipment
- Freshwater fishing
- Overfishing
- Pearls
- Sea fish
- Sea products
- N.06 - Water, waters/Water supply industry top
- Canals
- Civil/hydraulic engineering
- Coast protection/river regulation
- Dams
- Desalination
- Drinking water
- Flooding
- Fresh water
- Groundwater
- Irrigation
- Irrigation farming
- Irrigation methods
- Land drainage
- Reservoirs
- Sea water/salt water
- Waste water
- Water
- Water balance
- Water extraction
- Water management
- Water protection
- Water supply
- Water treatment
- N.07 - Animal and plant diseases top
- Animal diseases/animal disease epidemics
- Damage to food/feedstuff
- Pest control
- Pesticides
- Pests/vermin
- Plant diseases
- Veterinary medicine
- N.08 - Agricultural products/Nutrition top
- N.08.01 - Agricultural products, general
- Agricultural production
- Agricultural products
- Animal products
- Cash crops
- Harvests
- Plant products
- N.08.02 - Agricultural plant products
- Bulbous/tuberous crops
- Cereals
- Citrus fruits
- Fibrous plants
- Fruits
- Legumes
- Oil seeds
- Oils and fats (animal/vegetable)
- Plant products
- Root crops
- Seeds
- Vegetables
- N.08.03 - Agricultural animal products
- Animal products
- Dairy products
- Hides and skins
- Oils and fats (animal/vegetable)
- Tropical products
- N.08.04 - Food/Luxury food and stimulants
- Alcoholic beverages
- Bakery products
- Beer
- Beverages
- Cocoa
- Coffee
- Dried fruit
- Drinking water
- Edible fats
- Flour
- Food additives
- Food control
- Food products
- Luxury foods/stimulants
- Meat/meat products
- Opium
- Proteins
- Salt (mineral)
- Spices
- Sugar
- Tea
- Tobacco
- Wine
- N.08.05 - Nutrition
- Food aid
- Food industry
- Food preparation
- Food preservation
- Food prices
- Food production
- Food products
- Food reserves
- Food shortages
- Food supply
- Food supply security
- Food surpluses
- Hunger/famine
- Malnutrition
- Nutrition
- Nutrition education
- N.09 - Agroindustry/Agricultural engineering top
- Agricultural chemistry
- Agricultural engineering
- Agricultural machinery
- Agroindustry
- Cotton industry
- Dairy farming
- Fishing industry
- Food industry
- Grain processing
- Meat industry
- Milling industry
- Mills
- Sugar industry
- Tobacco industry
- Tractors