DESENVOLVIMENTO DE UM MÓDULO DE INTERFACE PARA A APLICAÇÃO DE FERTILIZANTES LÍQUIDOS A TAXAS VARIÁVEIS DEVELOPMENT OF AN INTERFACE MODULE FOR APPLICATION OF LIQUID FERTILIZERS WITH VARIABLE RATE

Modern agriculture searches for new technologies for application of nutrients with higher precision to increase productivity, minimize environment impact, reduce production costs and improve products quality. The development of such machines tends towards automation and the introduction of embed electronic systems. The aim of this work was the development of an Interface Module (MDI) to be used in a system for application of liquid products. The function of the MDI is to receive the information from the Control Module, reading the field sensors, process all this data and command the peripherals involved in the application, as: pumps, electro-valves for flux of nutrients control. The results of the analysis have shown that the MDI presented a superior performance than the required by the application system of liquid nutrients.