Low Cost GPS-Based System for Site-Specific Farming at Flat Terrains –Case Study

Site-specific farming has been developed to the level that enables profitable use. The problem of its application in developing countries is high costs of needed equipment. The objective of research was to develop a low-cost system for application of precision farming. The system consists of low-cost GPS receiver connected to the PLC. The test of the system applicability for local specific spraying of herbicides, following previously defined weed spots was done. The encouraging results have been obtained. The precision of spraying could be enhanced using new generation of receivers with higher frequency rate and accuracy and including additional parameters for the PLC calculations.