A certain degree of stability can only be achieved through an "agricultural revolution" that confronts "the natives" with the challenge of improving their means of production, profitability and marketing. This improvement requires the introduction and application of research methods and cultivation techniques often influenced by the theories and results of temperate countries. If, in nature, nothing is created, nothing is lost, everything simply transforms itself, any intensive farming technique presupposes adaptations to local conditions (soil, climate, equipment, people's educational evolution). Your studies as a sub-engineer should lead you to study and propose farming methods adapted to these regions. The aim of this project is to enable us to assess your ability to adapt to the requirements of these regions.