Robot treats 500k plants per hour with 95% less chemicals [video]
I wonder if recognition of weeds could be made easier by using genetically engineered crop plants with a fluorescent protein.  Shine some UV on them and they're a crop plant if the fluorescence comes back at the right wavelength.<p>Also, can less space be taken up by rows if the farm vehicle is legged?  One would just need spots for the feet to land on.