Why would a farmer need a drone? Glad you asked! Check it out 

What in the world would a farmer do with a drone? Quite a bit actually, the limit is 400' and your imagination.
-Check crops, irrigations, ditches, grain bins, & animals
-Record drainage tile, problem areas, and mark wet spots
-Train new recruits with a new perspective to show them the ropes
-The list goes on and on but the most important thing is that if you are a farmer, you need to get a drone!
DJI - click.dji.com/A...
PrecisionHawk - www.precisionha...
Midwest-UAV - www.midwest-uav...