Instruction and study (2) History (2) Agronomy (2) Tobacco (2) Plants (2) Practice (2) Tabaco (2) Historia (2) Agronomía (2) Histoire (2) Agronomie (2) Pratique (2) Systèmes de culture (2) Tabac (2) Histoire (2) Plantes (2) tabac (2) histoire (2) Cuba (2) Windscreens (1) Winds (1) Windbreaks, shelterbelts, etc (1) Palms (1) Culture (1) Agroforestry (1) Protection (1) Cortavientos (1) Agrosilvicultura (1) Palmeras (1) Viento (1)