Abstract
The microclimate of cultivation structures depends to a large extent on the external environment. As a consequence, the importance of climate control in greenhouses is the accounting of solar radiation, wind strength and direction, temperature and humidity of air, as well as precipitation. Modern control systems, taking into account the influence of climatic conditions of the environment, allow to quickly change the parameters of microclimate in the construction of the soil. The microclimate determines all processes of formation of seed germination of seeds till the end of vegetation. In this regard, there is a need to differentiate the modes of microclimate: during the day, the phases of growth and development, depending on the state of plants.