Precision Agriculture
Vineyards and Greenhouses
Another important application of WSN, as well as for scientific purposes is the so-called precision agriculture. In this context, the sensors network is used to monitor environmental parameters of crop
cultivation, so that the farmer knows, for example, when having water or when to use certain pesticides. Thanks to combination of sensors such as humidity, temperature, and lightand so on , you can avoid the risk of frost, as well as any plant diseases or you can control the level of irrigation based on soil moisture and leaf wetness.
The precision agriculture has the ‘aim of optimizing the production, taking into account local soil and climatic variations. All this involves extremely precise control of vital parameters for vineyards and greenhouses, so that irrigation and climate control correspond to local conditions.
In the greenhouses solar radiation, temperature and CO2 concentration are correlated to determine the final production. If any of these factors is limiting, it becomes unnecessary to increase the other. The easiest factor to control and change the temperature. We know, however, as the plant transpiration is important for its physiological functions and consequently for their production. In fact, transpiration varies depending on the ventilation of the greenhouse and in the light of solar radiation, and both affect the temperature inside the greenhouse. The main factors of the microclimate in the greenhouse that we can control and manage are:
Temperature, CO2 concentration, Humidity, Intensity of radiation and wind pressure or speed.
