Imagine a tractor that weighs no more than a motorcycle, lightly threading its way through your fields to deliver fertilizer or weed control 24/7 as you relax over coffee. Or a squad of drones locked on to a weed infestation based on a GPS-generated field map, autonomously cruising out to electrostatically spot spray those problem areas.

Here’s a few promising ideas we saw in the works at the Forbes Ag Tech Summit in Indianapolis this fall. A few are already for sale and others are still being tinkered with before heading to market.