In the near future,our fields could be tilled,sown,tended and harvested entirely by co-operating autonomous machines by land and air.
And they'll be working both day and night.
Driverless tractors that can follow pre-programmed routes are already being set out at large farms around the world.
Automation going to make major change in agriculture.

Here is a brief Article about Automated farming.

Will farming be fully Automated?
What do you think is it Good for humanity?
what is the future of farmers?
Shall we get a healthy food by automated farming ?