We currently treat an entire field as one uniform thing because that’s the cheapest way to do it. We plant in rows to allow our simple machines to operate on them. We drive massive combines up and down the field. We spray the entire field uniformly.
I think there’s a move in the precision farming world to using remote sensing imaging to treat smaller tracts of land (like an acre) separately. But at some point the technology will be cheap enough to focus in on each individual plant.
Clearly there’s some extra growth that each plant would have if it would treated really well and harvested at the perfect time. That’s the opportunity. The cost is developing swarms of robots that go up and down the fields 24 hours a day checking on soil moisture, leaf disease, weeds and doing what it needs to tend to that plant. I think the hardware already exists and is cheap enough. It’s now just a matter of developing the software (yes, the devil is in the word “just”).
If there are 10 plants per square meter and we give the robot 1 minute per plant, and there are 10,000 square meters in a hectare, then we will need 70 robots to tend an entire hectare in a single 24 hour period. That’s the sort of math that I’ve been thinking of.