CONTEMPORARY GEOGRAPHY OF THE TONIC CULTURES IN THE WORLD
MILEN PENERLIEV
Abstract
The paper defines the position of the tonic cultures in the system of plant-growing. The geographical features in the distribution of every culture are determined. The leading soil and climatic factors are given. Latest statistics data about the yield of tonic cultures in the world is used.
Key words
tonic cultures, productions, regions.
References
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Emages economiques du monde, Paris, 2006
World drug report, 2006
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