TY  - BOOK
AU  - Ruthenberg, Hans.
TI  - Farming systems in the tropics.
SN  - 198594828
AV  - S604.37.R87 
PY  - 1980///
CY  - U.S.A.
PB  - Clarendon Press
KW  - Agricultural systems -- Tropics
KW  -  Farm management
N1  - Includes index; Contents: Introduction -- Some characteristics of farming in a tropical environment -- Shifting cultivation systems -- Fallow systems -- Ley systems and diary systems -- Systems with permanent upland cultivation -- Systems with  perenial crops -- Grazing systems --Systems with arable irrigation farming -- Systems with parenial crops -- Grazing systems -- Tendencies in the development of tropical farming systems -- Notes on methodology in cropping and farming system research.
ER  -