SUBJECT
Agriculture
Electronic books
69
Economic aspects
41
Agricultural resources
14
Management
14
Environmental aspects
13
Electronic book
9
Climatic changes
8
Crops and climate
7
Agriculture and state
6
Natural resources
5
Sustainable agriculture
5
Data processing
4
Economic conditions
4
Economic development
4
Risk management
4
Climate change mitigation
3
Government policy
3
Remote sensing
3
Water
3
Agricultural credit
2
Agricultural innovations
2
Agricultural productivity
2
Agriculture and energy
2
Alternative agriculture
2
Electronic boo
2
Engineering
2
Engineering design
2
Environmental sciences
2
Finance
2
Food supply
2
Forests and forestry
2
Land use, Urban
2
Microbiology
2
Plant breeding
2
Pollution
2
Research
2
Social aspects
2
Sustainable development
2
Urban development
2
Aerial photography in agriculture
1
Agricultural assistance
1
Agricultural biotechnology
1
Agricultural engineering
1
Agricultural industries
1
Agricultural resourcesxManagement
1
Agricultural wastes
1
Agronomy
1
Air pollution
1
Allelopathic agents
1
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