In Morocco, the evolution of the horticultural industry is closely linked to the modernization and optimization of production factors. However, the horticultural greenhouse is an essential element for early vegetables production in protected agriculture. Knowledge of greenhouses types, their components, their internal microclimate distribution in relation to outside climate evolution and its impact on productivity and the dynamics of greenhouse diseases and pests is essential. Greenhouse farmers can then use this information to improve their technical and climatic management of crops under a fluctuating microclimate and adopt effective technical solutions to reduce the impact of climate on production of protected crops (light, ventilation, shading, heating, air conditioning and CO2 injection ...).

Keywords: Horticultural greenhouse, Microclimate, early production, climate control.