Definition of Precision Agriculture

I thought precision agriculture was being able to shoot deer from a moving tractor.

Precision agriculture involves numerous functions being performed per mapping of some sort defining your precise location at any given moment.?ÿ With the proper information acquired in advance, it is now possible to spread differing amounts of a product (herbicide, fertilizer, etc.) to the differing needs across a field.?ÿ Robotic tractors following GPS-determined paths will appear soon at a commercial level.?ÿ A common system on tractors and combines sets the limits of a field by making a pass around the outside, then allows the operator to focus on speed, header height and similar issues while the steering is automatic.

The extent of my precision agriculture equipment is an old SPS780 rover mounted on the hood of my tractor, connected to a 15 year old light bar, which is connected to a steering wheel controller that basically turns the wheel for me so I can watch other stuff, all getting rtk corrections from an old SPS base set up on one of my grain bins.?ÿ Allows me to plant on the same lines year after year, by offsetting the drawbar hitch 7.5" every other year.?ÿ Today I was running the neighbors fairly new combine for him shelling wheat while it was mapping yield data on the fly.?ÿ A couple of years ago I stopped by another neighbor's place when I saw him and the John Deere mechanic climbing over his $300,000 rig.?ÿ He said they had been down for 3 days working on the yield monitor.?ÿ I said "you do know you can shell corn without that", but he has all his fertilizer and chemicals applied based on his yield maps, so for him that wasn't an option.