National Agricultural Information System

Agriculture in General

[8] Agricultural research - A50

[2] Agriculture - General aspects - A01

Geography and History

[0] Geography - B10

[0] History - B50

Education, Extension and Information

[1] Documentation and information - C30	[5] Extension - C20
[2] Education - C10

Administration and Legislation

[2] Legislation - D50

[0] Public administration - D10

Economics Development and Rural Sociology

[2] Agrarian structure - E90	[17] Investment, finance and credit - E13
[41] Agricultural economics and policies - E10	[6] Labour and employment - E12
[2] Agro-industry - E21	[8] Land economics and policies - E11
[1] Consumer economics - E73	[17] Organization, administration and management of agricultural enterprises or farms - E20
[0] Cooperatives - E40	[19] Production economics - E16
[18] Development economics and policies - E14	[1] Rural population - E51
[1] Domestic trade - E72	[15] Rural sociology and social security - E50
[1] Home economics, industries and crafts - E80	[44] Trade, marketing and distribution - E70
[12] International trade - E71

Plant Science and Production

[138] Crop husbandry - F01	[1] Plant physiology - Reproduction - F63
[15] Cropping patterns and systems - F08	[25] Plant physiology and biochemistry - F60
[40] Fertilizing - F04	[20] Plant propagation - F02
[38] Irrigation - F06	[7] Plant structure - F50
[5] Plant ecology - F40	[3] Plant taxonomy and geography - F70
[37] Plant genetics and breeding - F30	[12] Seed production and processing - F03
[29] Plant physiology - Growth and development - F62	[8] Soil cultivation - F07
[3] Plant physiology - Nutrition - F61

Plant Protection

[7] Miscellaneous plant disorders - H50	[1] Protection of plants - General aspects - H01
[102] Pests of plants - H10	[26] Weeds and weed control - H60
[88] Plant diseases - H20

Postharvest Technology

[1] Handling ,transport, storage and protection of agricultural products - J10	[0] Handling, transport, storage and protection of forest products - J12
[1] Handling, transport, storage and protection of animal products - J13	[0] Handling, transport, storage and protection of non-food or non-feed agricultural products - J15
[0] Handling, transport, storage and protection of fisheries and aquacultural products - J14	[5] Handling, transport, storage and protection of plant products - J11

Forestry

[0] Forest engineering - K11	[2] Forestry production - K10
[1] Forest injuries and protection - K70	[3] Processing of forest products - K50
[2] Forestry - General aspects - K01

Animal Production

[25] Animal diseases - L73	[6] Animal physiology - Reproduction - L53
[2] Animal ecology - L20	[2] Animal physiology and biochemistry - L50
[15] Animal feeding - L02	[2] Animal structure - L40
[7] Animal genetics and breeding - L10	[0] Animal taxonomy and geography - L60
[11] Animal husbandry - L01	[5] Miscellaneous animal disorders - L74
[3] Animal physiology - Growth and development - L52	[12] Pests of animals - L72
[4] Animal physiology - Nutrition - L51	[9] Veterinary science and hygiene - General aspects - L70

Fishery and Aquaculture

[0] Aquaculture production - M12	[0] Fisheries and aquaculture - General aspects - M01
[5] Aquatic ecology - M40	[0] Fisheries production - M11

Agriculture Machinery and Engineering

[2] Agricultural engineering - N01	[3] Agricultural structures - N10
[14] Agricultural machinery and equipment - N20	[0] Farm layout - N02

Natural Resource and Environment

[0] Drainage - P11	[45] Soil chemistry and physics - P33
[0] Energy resources and management - P05	[10] Soil classification and genesis - P32
[5] Meteorology and climatology - P40	[2] Soil erosion, conservation and reclamation - P36
[8] Nature conservation and land resources - P01	[11] Soil fertility - P35
[0] Non-renewable energy resources - P07	[0] Soil science and management - P30
[0] Renewable energy resources - P06	[4] Soil surveys and mapping - P31
[4] Soil biology - P34	[36] Water resources and management - P10

Processing of Agricultural Products

[0] Feed additives - Q55	[1] Food contamination and toxicology - Q03
[6] Feed composition - Q54	[11] Food processing and preservation - Q02
[1] Feed contamination and toxicology - Q53	[0] Food science and technology - Q01
[0] Feed processing and preservation - Q52	[0] Packaging - Q80
[0] Feed technology - Q51	[0] Processing of agricultural wastes - Q70
[1] Food additives - Q05	[2] Processing of non-food or non-feed agricultural products - Q60
[8] Food composition - Q04

Human Nutrition

[3] Diet and diet-related diseases - S30	[2] Nutrition programmes - S40
[2] Human nutrition - General aspects - S01	[1] Physiology of human nutrition - S20

Pollution

[1] Occupational diseases and hazards - T10

[13] Pollution - T01

Methodology

[5] Mathematical and statistical methods - U10	[0] Surveying methods - U40
[0] Research methods - U30