Precision agriculture is one of the dominant fields in the food area where the requirement is to maximise the growth plant efficiency and to preserve natural resources as possible. A careful management of potable water, one of the earth resources, is the main key of the future of mankind. And the agriculture is the most thirsty economic sector with a big percentage of the total water footprint. In this context, this thesis is involved in the regional project WAPPFRUIT where smart technologies are applied to water management in fruit growing for rural development in Piedmont region. The main goal of WAPPFRUIT is the innovation of farms by means of cutting edge technologies that will let the correct definition of the water requirement and the complete automation of the micro-irrigation system.