Modular Autonomous Ag Robotic System (MAARS) is a unique robot developed by GA AG Robotics that not only saves money on labor but also on equipment and storage space. The modular system uses the same base with interchangeable work modules, changing the modules is a simple process only involving 6 bolts and 2 cables. The onboard computer automatically detect what module is being used and runs the correct program making changing robot module easy as changing implements on a tractor. The first modules available will be for Vidalia onions, both planting and harvesting. The next modules available will be for garlic harvesting and watermelon planting using the same base as the onion modules. The robots will be available in 2016.