The geometry informations of the wet bulb are important for the design of projects and management of drip irrigation, mainly to estimate the volume of wet soil, emitter flows and irrigation time. In this study aimed to determine the dimensions of the wet bulb formed by drippers with different flow on terrain with declivities. For this, soil moisture levels were determined throughout the soil profile after drip irrigation with three flow emitter associated with four declivity of terrain. According to the results, it was verified that the different terrain declivities and flows dripper influenced the wet bulb geometry and moisture distribution in your area, indicating the importance of relief in the positioning of emitters in drip irrigation.
Trickle irrigation, drippers, soil moisture.