SUBJECT
Agroforestry
8
Agroforestry -- Handbooks, manuals, etc
6
Livestock
3
Poultry
3
Soil conservation
3
Tree planting
3
Trees
3
Water conservation
3
Agricultural industries
2
Cropping systems
2
Crops
2
Plant propagation
2
Seeds
2
Technology transfer
2
Agricultural assistance
1
Agricultural ecology
1
Agricultural research
1
Food crops
1
Food supply
1
Swamp ecology
1
Tidemarsh ecology
1