Caracterização de um sensor pra determinação da água disponível nos solos.

Abstract

This dissertation presents the characterization of a sensor that permit the measurement and control of the absorbed water and temperature in the soils. This sensor coupled with adequate functional blocks can be capable of monitoring and controlling the soil moisture and the available water. Such a system should be very useful for management of irrigation systems which besides rationalizing the water consumption, improves the crop productivity, reduces operating coasts and energy consumption. This is important for arid and semi-arid regions where water is the most valuable and scarce resource in the agricultural practice. The proposed sensor involves low cost and is fabricated with plaster of Paris and thus facilitates its utilization in projects with relatively low budget.