A hypothetical example is drones going through a field and manually picking out weeds, increasing yield with the same amount of resources. Similarly you can get fine grained ‘crop analytics’ through drones scanning the field and acting in response.
Farmers are very aware of the benefits of technology (why else would you spend half a million $ on a combine?) and will take it up if they see a benefit.
OP seems to be talking about some kind of automated drone weeding (or just phrased what he meant poorly).
See e.g. https://home.agrian.com/what-we-do/ for a company that manages this process.