TY  - BK
AU  - Carls,J.
TI  - Abstracts on sustainable agriculture
SN  - 3-528-02060-1(v.2)
PY  - 1991///
CY  - Eschborn (Germany)
PB  - GATE, 
KW  - Agroforestry
KW  - Agrometeorology
KW  - Cropping systems
KW  - AGROVOC
KW  - Ecology
KW  - Erosion control
KW  - Land use
KW  - Plant protection
KW  - Production possibilities
KW  - Seed production
KW  - Water management
KW  - Soil fertility
KW  - Farming systems
N1  - Index
ER  -