SUBJECT
Agricultural systems
Agriculture
38
Research
22
Agricultural ecology
16
Economic aspects
7
Farm management
7
Sustainable agriculture
7
Environmental aspects
6
Farms, Small
6
Land use
6
Management
5
Rice
5
Rural development
5
Agricultural development projects
4
Agricultural innovations
4
Agricultural productivity
4
Congresses
4
Cropping systems
4
Human ecology
4
Organic farming
4
Women in agriculture
4
Agriculture and state
3
Economic conditions
3
Farmers
3
Traditional farming
3
Agricultural conservation
2
Agricultural extension work
2
Agricultural geography
2
Agricultural research
2
Agrobiodiversity
2
Aquaculture
2
Fisheries
2
Food supply
2
Hill farming
2
History
2
Household surveys
2
Shifting cultivation
2
Social aspects
2
Social conditions
2
Addresses, essays, lectures
1
Agricultural administration
1
Agricultural biotechnology
1
Agricultural innovation
1
Agricultural pests
1
Agricultural resources
1
Agriculture, Prehistoric
1
Agroecosystem
1
Agroforestry
1
Agroforestry systems
1
Animal traction
1
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