[dragontamer]

I assume there are plenty, but you'd be competing against John Deere / Monsanto etc.

These companies are in fact doing hard science and engineering. For an example of your competition:

https://www.planttape.com/

So yeah, form a startup but you need to be in the top of your science / engineering game. But everyone wants a more automated, cheaper, more reliable, less water usage, planting / growing methodology. Plenty of opportunity if you actually have something that's better than the status quo.