Title: The persisting ecological constraints of tropical agriculture
Subjects: Agricultural ecology, Agriculture, Tropical crops, Applied ecology, Geography, Tropical agriculture: practice & techniques, c 1960 to c 1970, c 1970 to c 1980, c 1980 to c 1990, c 1990 to c 2000, Agriculture - General, Technology & Industrial Arts, Agriculture, tropics
Places: Ecology, Tropics